Data guard Notes
中兴E300操作手册(基本操作)
V3.17R2 V3.18R2 V3.19R1 V3.19R2
20060317-R1.0 20070601-R1.0 20080418-R1.0 20090530-R1.0
资料编号 sjzl2003623
sjzl20041185
sjzl20041851
sjzl20050228
sjzl20051954 sjzl20060660 sjzl20070949 sjzl20081092 sjzl20090545
3． 鼠标操作约定
格式 单击 双击 右击 拖动
意义 快速按下并释放鼠标的左键 连续两次快速按下并释放鼠标的左键 快速按下并释放鼠标的右键 按住鼠标的左键不放，移动鼠标
4． 标志 本书采用四个醒目标志来表示在操作过程中应该特别注意的地方。
注意、 意的事项。
小心、
警告、
危险：提醒操作中应注
目录
第 1 章 基本操作指南................................................................................................................................1-1 1.1 ZXONM E300 的启动和登录 .........................................................................................................1-1 1.2 ZXONM E300 服务器端的退出 .....................................................................................................1-3 1.3 ZXONM E300 客户端的退出 .........................................................................................................1-4 1.4 登录窗口管理者信息输入功能 .....................................................................................................1-5 1.5 客户端操作窗口视图的切换 .........................................................................................................1-5 1.6 主菜单操作 .....................................................................................................................................1-6 1.7 主视图的主菜单/工具栏切换 ........................................................................................................1-7 1.8 导航树操作 .....................................................................................................................................1-8 1.9 拓扑图操作 .....................................................................................................................................1-9 1.9.1 锁定拓扑图 ...........................................................................................................................1-9 1.9.2 保存拓扑图 .........................................................................................................................1-10 1.9.3 恢复拓扑图 .........................................................................................................................1-10 1.9.4 缩放拓扑图 ......................................................................................................................... 1-11 1.9.5 修改拓扑图背景 ................................................................................................................. 1-11 1.10 设备类型统计 .............................................................................................................................1-13 1.11 选择网元（单板） .....................................................................................................................1-15 1.12 移动网元（单板） .....................................................................................................................1-17 1.13 查询网元/单板资源 ....................................................................................................................1-18 1.14 查找网元 .....................................................................................................................................1-19 1.15 ZXONM E300 帮助的使用 .........................................................................................................1-20 1.16 查询ZXONM E300 版本 ............................................................................................................1-21
爱数电子文档安全管理存储系统6.0用户手册说明书
目录版权所有 (5)关于爱数 (6)前言 (7)第一章关于爱数电子文档安全管理存储系统6.0 (8)1.1 角色简介 (8)1.2 模块简介 (8)1.3 新增功能简介 (9)第二章Windows 客户端 (10)2.1 安装和登录 (11)2.1.1 安装和卸载 (11)2.1.2 登录Windows客户端 (12)2.1.3 Windows客户端设置 (14)2.2 Windows客户端简介 (19)2.2.1 界面简介 (19)2.2.2 文档简介 (20)2.2.3 托盘简介 (21)2.3 同步文档 (21)2.3.1 同步介绍 (21)2.3.2 上传文档 (23)2.3.3 下载文档 (24)2.3.4 预览文档 (24)2.4 授权文档 (25)2.4.1 内链授权 (26)2.4.2 取消授权 (28)2.5.1 审核简介 (29)2.5.2 审核流程 (29)2.6 团队协作 (30)2.6.1 群组授权 (30)2.6.2 文档库协作 (30)2.6.3 文件编辑锁定 (31)2.7 搜索文档 (31)2.8 找回文档 (33)2.8.1 历史版本 (33)2.8.2 回收站 (33)2.9管理文档 (34)2.9.1 文档密级管理 (34)2.9.2 设置文档标签 (35)2.10 收藏文档 (35)2.11 消息通知 (36)2.12 个人账号管理 (37)第三章网页访问 (38)3.1 网页登录 (40)3.2 网页简介 (40)3.2.1 界面简介 (40)3.2.2 文档简介 (41)3.3同步文档 (42)3.3.1 基本操作 (42)3.3.2 上传文档 (43)3.3.3 下载文档 (43)3.4.1 权限授权 (44)3.4.2 取消授权 (45)3.4.3 一键撤销授权 (46)3.5 授权审核 (46)3.5.1 审核简介 (46)3.5.2 审核流程 (46)3.6 收藏文档 (50)3.7 团队协作 (50)3.7.1 群组授权 (50)3.7.2 文档库协作 (52)3.7.3 在线编辑 (52)3.8 搜索文档 (53)3.9 找回文档 (54)3.9.1 回收站 (54)3.10 管理文档 (55)3.10.1 文档密级管理 (55)3.10.2 设置文档标签 (56)3.10.3 添加编目 (57)3.10.4 文档排序 (58)3.11 消息通知 (58)3.12 个人账号管理 (59)3.13 联系人管理 (60)版权所有版权所有©2006—2019 上海爱数信息技术股份有限公司。
dataguard配置文档_分析
Oracle Dataguard一、新建STANDBY数据库1、在开始运行-REGEDIT-打开注册表，定位至新建字符串值（大写）ORACLE_SID（数值数据为主库的名称）2、开始-运行-cmd输入oradim -new -sid (数据库名称)完成实例的建设。
二、配置监听与网络服务分别在主库和备用库上配置监听和网络服务名(可用oracle net configuration assistant配置工具)两个节点的配置相同一个网络服务名指向主库,另一个指向备用库1、监听程序配置（主库与STANDBY库配置一样）完成监听程序的配置2、配置本地NET服务名配置。
服务名输入为数据库名。
主机名输入为主库的IP地址网络服务名为主库名称。
继续配置STANDBY的NET服务名这里改为STANDBY的IP地址网络服务名改为（oraclestandby）这里改变名称时需要到主库更改选项。
完成网络服务名配置和监听配置。
以上步骤需主库与STANDBY库同时设置。
服务名都为实例名。
三、配置主库server1、ALTER DATABASE FORCE LOGGING;使其使用强制记录方式2、改初始化文件(加上以下一行)：检查是否为pfile或者spfile文件:select value from v$parameter where name = 'spfile'; *.log_archive_dest_2='SERVICE=ORCLSTANDBY'注：可用以下命令：alter system set log_archive_dest_2='service=STANDBY名' scope=spfile;alter system set log_archive_dest_2='service=STANDBY名' scope=both;(当初始化文件是spfile，用这条参数可以不用重启数据库)图中DEST_4因测试环境不同，做法按默认命令为准。
dataguard 原理
dataguard 原理
DataGuard是Oracle数据库提供的一种高可用性和灾难恢复解决方案。
它通过在主数据库和备份数据库之间实时复制和传输归档日志，确保在主数据库故障时可以快速切换到备份数据库并继续工作。
数据保护的原理是基于物理日志文件的持续备份和传输。
在正常运行时，主数据库将产生归档日志，这些日志会被连续地传输到备份数据库。
备份数据库将这些日志应用到自己的副本中，使得备份数据库与主数据库保持同步。
一旦主数据库发生故障，可以通过手动或自动切换到备份数据库。
此时，备份数据库会将主数据库中未完全发送的归档日志自动应用并保持最新状态，保证数据一致性。
DataGuard还包括实时应用备份数据库的模式，以提供实时报告和查询。
此模式下，客户可以从备份数据库读取数据，而不会影响主数据库的性能。
这种架构提供了性能增强和高可用性。
DataGuard通过提供物理级别的数据保护，不仅可以应对硬件故障，还可以应对人为错误、自然灾害和系统故障等各种灾难情况。
它还支持异地灾备，即将备份数据库部署在远离主数据库的地理位置，确保即使发生严重灾难，如地震或洪水，数据库仍然可用。
总之，DataGuard原理是基于实时复制和传输归档日志，使得备份数据库与主数据库保持同步，并通过自动应用归档日志保持数据的一致性。
它提供高可用性和灾难恢复解决方案，可应对各种硬件故障和灾难情况，确保数据库的可用性和数据完整性。
Windows系统安全加固技术指导书
甘肃海丰信息科技有限公司Windows系统安全加固技术指导书◆版本◆密级【绝密】◆发布甘肃海丰科技◆编号GSHF-0005-OPM-©2006-2020 HIGHFLYER INFORMATION TECHNOLOGY ,INC.目录文档信息................................................................. 错误!未定义书签。
前言.................................................................... 错误!未定义书签。
一、编制说明............................................................ 错误!未定义书签。
二、参照标准文件........................................................ 错误!未定义书签。
三、加固原则............................................................ 错误!未定义书签。
1.业务主导原则..................................................... 错误!未定义书签。
2.业务影响最小化原则............................................... 错误!未定义书签。
3.实施风险控制..................................................... 错误!未定义书签。
(一)主机系统............................................................. 错误!未定义书签。
(二)数据库或其他应用 ..................................................... 错误!未定义书签。
FortiADC
A PPLICATION D ELIVERY C ONTROLLER FortiADC™ 4.0 Release Notesfor D Series Models & FortiADC-VMFortiADC™ 4.0 Release Notes for D Series Models & FortiADC-VMApril 3, 2014Revision 1Copyright© 2014 Fortinet, Inc. All rights reserved. Fortinet®, FortiGate®, FortiCare® and FortiGuard® and certain other marks are registered trademarks of Fortinet, Inc., and other Fortinet names herein may also be registered and/or common law trademarks of Fortinet. All other product or company names may be trademarks of their respective owners. Performance and other metrics contained herein were attained in internal lab tests under ideal conditions, and actual performance and other results may vary. Network variables, different network environments and other conditions may affect performance results. Nothing herein represents any binding commitment by Fortinet, and Fortinet disclaims all warranties, whether express or implied, except to the extent Fortinet enters a binding written contract, signed by Fortinet’s General Counsel, with a purchaser that expressly warrants that the identified product will perform according to certain expressly-identified performance metrics and, in such event, only the specific performance metrics expressly identified in such binding written contract shall be binding on Fortinet. For absolute clarity, any such warranty will be limited to performance in the same ideal conditions as in Fortinet’s internal lab tests. Fortinet disclaims in full any covenants, representations, and guarantees pursuant hereto, whether express or implied. Fortinet reserves the right to change, modify, transfer, or otherwise revise this publication without notice, and the most current version of the publication shall be applicable.Technical Documentation Knowledge Base Forums https:///forums Customer Service & Support https://Training FortiGuard Threat Research & Response License Agreement /doc/legal/EULA.pdf Document Feedback Email: *********************Table of contentsIntroduction (4)What’s new (5)Upgrade instructions (6)Hardware model & VM support (6)Upgrading from release 3.2.1 (6)Upgrading from release 3.0.0, 3.1.0, or 3.2.0 (6)Upgrading from releases earlier than 3.0 (6)Rebuilding the logging database (6)Resolved issues (7)Known issues (8)Image checksums (11)Fortinet 3 FortiADC™ 4.0 Release NotesIntroductionThis document provides a list of new and changed features, upgrade instructions and caveats,resolved issues, and known issues for FortiADC™ 4.0 build 0004 for D series models andFortiADC-VM.FortiADC provides load balancing, both locally and globally, and application delivery control.For additional documentation, please visit:/fadc.htmlFortinet 4 FortiADC™ 4.0 Release NotesWhat’s newBefore upgrading, review the following changes for impact to your unique network.•VDOMs –Virtual Domains (VDOMs) allow you to divide a FortiADC into two or more virtual units that are configured and function independently. The administrator for each VDOMcan view and manage the configuration for his or her domain. The admin administratorhas access to all VDOM configurations.•Caching – A RAM cache is a cache of HTTP objects stored in FortiADC's system RAM that are reused by subsequent connections to reduce the amount of load on the back-endservers.•IP Reputation – You can now block source IP addresses that have a poor reputation using data from the FortiGuard IP Reputation Service.•Layer 2 server load balancing – Load balance layer 3 routers, gateways or firewalls.Useful when the request’s destination IP is unknown and connections need to be loadbalanced between multiple next hop gateways. Supports HTTP, HTTPS and TCPS profilesonly.•Open Shortest Path First (OSPF) support – The new OSPF feature allows FortiADC to learn dynamic routes from or redistribute routes to neighboring routers.•HTTPS profile type for virtual servers – The HTTPS profile type provides a standalone HTTPS profile and replaces the need to use an HTTP profile with SSL checked.•Consistent Hash IP – The persistence policy type Hash IP has changed to Consistent Hash IP. Consistent hashing allows FortiADC to achieve session persistence moreefficiently than traditional hashing.•Enhanced logso FortiADC now supports a third type of log – attack log.o You can now download log messages using the FortiADC web UI.o The format of logs has changed. Because of this format change, if you upgradefrom FortiADC 3.x, use the execute log-rebuild command to rebuild the logdatabase.o FortiADC now exports log reports in HTML or PDF format only. RTF and plain textreports are no longer supported.Fortinet 5 FortiADC™ 4.0 Release NotesUpgrade instructionsHardware model & VM supportFortiADC™ 4.0 for D series models supports:•FortiADC 200D•FortiADC 1500D•FortiADC 2000D•FortiADC 4000D•FortiADC-VMUpgrading from release 3.2.1Upgrade from FortiADC 3.2.1, build 0154, using the web UI or CLI via SSH/Telnet. Due to logformat changes the log database needs to be rebuilt after the upgrade. See instruction below.Upgrading from release 3.0.0, 3.1.0, or 3.2.0To upgrade from FortiADC 3.0-3.2.0, first upgrade to 3.2.1, build 0154. Then follow theinstructions for upgrading from 3.2.1 using a clean install.Upgrading from releases earlier than 3.0Upgrading from releases prior to FortiADC 3.0 is not supported. Contact support for additionalinstructionsRebuilding the logging databaseTo support the new log message format, after you upgrade from a previous version, use theexecute log-rebuild command to rebuild the logging database.Fortinet 6 FortiADC™ 4.0 Release NotesResolved issuesThe resolved issues listed below do not list every bug that has been corrected with thisrelease. For inquires about a particular bug, please contact Fortinet Customer Service &Support.Table 1: Resolved issuesBug ID Description0222954 At times the system clock is faster than a normal clock0231963 FortiADC returns an empty reply on a specific query if Traffic Log isenabledFortinet 7 FortiADC™ 4.0 Release NotesKnown issuesThis section lists the known issues of this release, but is not a complete list. For inquires abouta particular bug, please contact Fortinet Customer Service & Support.Table 2: Known issuesBug ID Description0224253 Virtual server statistic files fills up the /tmp space0216943 Daemon 'update' continuously sent DNS requests0209152 Response delays when Syn Cookie is enabled and DDoS attack is inprogress0222675 When LLB and “rt-cache-reverse” are enabled traffic can be routed viareverse interface even when there's no route defined0221177 Cannot change an existing 'destination' entry to blank in Policy Route0220531 QoS not working properly when using an IP range0219247 Changing QoS configuration can cause existing sessions to hang forseveral seconds0209896 FTP data connections hang0222414 Adding a new LLB gateway or enabling/disabling an interface effectsexisting traffic0224375 Incorrect LLB source NAT when traffic rebalanced upon gateway re-balancing0214421,Issues viewing logs after generating a report02242420223699 System time does not correctly sync to the HA standby appliance0223497 L7 persistence information does not sync to the HA standby afterfailover0208499 Configuration restore does not work properly in HA clusters0220819 Subtype column filter in log tab does not filter correctly0221002 Protocol column filter in log tab does not work0210637 Upgrade from FortiADC 2.0 might crash the system0194525 HA standby flash drive deletedFortinet 8 FortiADC™ 4.0 Release Notes0204359 NTLM authentication fails0209761 IPv6 connection limit fails when output interface set to ‘all’0208497 All HA appliances will stay in standby if their age is the same andoverride is disabled0208499 HA configuration restoration does not work properly0207477 ‘Unset monitor’ fails in HA mode0236374 Cannot upgrade 200D to FortiADC 4.0 build 0002 using the web UI236603 If you create a VDOM and delete it soon after, the system reboots0236920 Should add the 'backup/restore full-configuration ' command to thebackup/restore the certificate, error page0236798 When network interface is configured with an IPv6 address, snmpaccess does not work0236778 A VDOM admin should be allowed to use the diagnose and executecommands0236928 If an IPv6 network interface address is used as a virtual server address,the IPv6 address does not work after a reboot.0237106 After deleting a network interface's IPv6 address, the correspondingroute is not deleted0237110 netd crashed after configuring a L4 virtual server with a full-NAT IP poolthat uses the same interface0224873 When link-aggregate is enabled, configuration restore fails0220545 Cannot delete VLAN interface when it is used in a static route0236612 Interface is set as a physical interface after enabling VDOM and creatingan aggregate interface0237285 Add secondary IP function is needed when configuring interface IPaddress0236775 Cannot view log from web UI0220759 'communication failure' or 'communication failure(store)'is oftendisplayed when viewing log0236773 Daemon 'mysqld' frequently restarts0236410 The daemons 'flg_accessd' and 'mysqld' are busy even though there islog generation or indexing activity0236427 In web UUI, cannot set the HTTP and HTTPS healthcheck match type to'string'Fortinet 9 FortiADC™ 4.0 Release Notes0237099 For a virtual server, cannot use both the web UI and CLI to add multiplerouting/rewrite list0236777 Super admin user can change the IP reputation configuration using theCLI but not the web UI0236605 OSPF does not work in 'VDOM disable' mode0236581 OSPFD crashes0236389 The backup server function does not work for a L4 virtual server0233389 The backup server function does not work for a Radius virtual server0236636 Administrative access via a dynamic interface (such as PPPoE, DHCP)does not work0236638 Web UI should have attack log option on remote log configuration page0236403 Dynamic detection for a link load balancing proximity route does notwork0237281 Layer 2 virtual server should not rely on route to serverFortinet 10 FortiADC™ 4.0 Release NotesFortinet 11FortiADC™ 4.0 Release NotesImage checksumsTo verify the integrity of the firmware file, use a checksum tool and compute the firmware file’sMD5 checksum. Compare it with the checksum indicated by Fortinet. If the checksums match,the file is intact.MD5 checksums for Fortinet software and firmware releases are available from FortinetCustomer Service & Support. After logging in to the web site, near the bottom of the page,click the Firmware Image Checksums button. (The button appears only if one or more of yourdevices has a current support contract.) In the File Name field, enter the firmware image filename including its extension, then click Get Checksum Code.Figure 1: Customer Service & Support image checksum tool。
(完整word版)OracleDataGuard容灾解决方案
Oracle DataGuard容灾解决方案目录一. 需求分析 (3)二. 解决方案 (3)拓扑架构 (3)方案特点 (4)方案优势 (4)产品介绍 (5)三. Oracle维保服务 (8)四. 方案报价 (10)一. 需求分析用户现有两台服务器，windows2008平台，一台运行oracle 11g r2，一台运行用友NC 6.3。
现在通过每天备份的方式保证安全。
用户希望在他的另一个机房（裸光纤互联）中搭建容灾平台。
因此本方案针对以上现状，提出Oracle DataGuard容灾解决方案，这样主数据库在遇到极端状况时，可以及时切换到备库，保证业务的连续性。
二. 解决方案拓扑架构Dataguard可以实现远程数据容灾,利用该功能也可实现高可用性。
数据容灾是指建立一个异地的数据系统，该系统是本地关键应用数据的一个实时复制。
在本地数据及整个应用系统出现灾难时，系统至少在或本地异地保存有一份可用的关键业务的数据,基于该功能,结合客户实际情况我方推荐使用其作为保证系统可靠运行的一种解决方案,由于两台机器的数据一致性以及低延迟,完全可以胜任,在主机出现故障时,切换至备机运行。
方案特点➢对现有的环境改动小，能最大限度的减少对现有应用系统的影响。
➢能满足客户对海量数据的管理要求。
➢可以实现远距离容灾，对网络要求低，低延时，快速业务切换。
➢同步或异步日志传输；➢低成本的投入。
方案优势灾难恢复和高可用性—Data Guard 提供了一个高效和全面的灾难恢复和高可用性解决方案。
易于管理的转换和故障切换功能允许主数据库和备用数据库之间的角色转换，从而使主数据库因计划的和计划外的中断所导致的停机时间减到最少。
完善的数据保护—使用备用数据库，Data Guard 可保证即使遇到不可预见的灾难也不会丢失数据。
备用数据库提供了防止数据损坏和用户错误的安全保护。
主数据库上的存储器级物理损坏不会传播到备用数据库上。
同样，导致主数据库永久损坏的逻辑损坏或用户错误也能够得到解决。
19cR3之Data Guard搭建
19cR3之Data Guard搭建环境node1 192.168.8.128 Primary orcl_01node2 192.168.8.129 Standby orcl_02内容——Primary配置——Standby搭建（Duplicate方式）——Standby搭建（物理拷贝方式）——Standby搭建（DBCA命令方式）——善后及模式调整一．Primary配置搭建Data Guard，需要对Primary进行如下配置。
1.开启归档模式Data Guard环境中，必须开启归档模式，以保存完整日志，这是数据同步的基础。
[oracle@node1 ~]$ sqlplus / as sysdbaSQL> start mount; ——启动实例到mount状态SQL> alter database archivelog; ——开启归档模式SQL> alter database open; ——打开实例SQL> archive log list; ——查看验证Database log mode Archive ModeAutomatic archival EnabledArchive destination USE_DB_RECOVERY_FILE_DESTOldest online log sequence 1Next log sequence to archive 2Current log sequence 2可见，已成功开启归档模式，缺省路径为：$ORACLE_HOME/dbs/arch，后面会修改。
2.强制日志模式我们知道，Oracle可使用nologging子句避免写日志，以便提高效率；但Data Guard就是基于日志来实现主备数据同步，这显然是不允许的，因此需要修改为Forced Logging模式，以强制记录任何修改。
SQL> alter database force logging;SQL> select name,log_mode,force_logging from v$database;NAME LOG_MODE FORCE_LOGGING--------- ------------ ---------------------------------------ORCL ARCHIVELOG YES3.调整参数配置Data Guard中，起关键作用的就是远程归档参数，一套简单的Data Guard环境，只需设置一个参数即可成功搭建，但为了以后方便相互切换，最好完善相关配置。
DATAGUARD配置参数详细解释
DATAGUARD配置参数详细解释
一、数据库参数
1.特定于数据库的参数
db_unique_name
功能：定义数据库唯一名称。
含义：该参数定义数据库唯一名称，该参数不应更改，否则可能会导
致一系列问题。
该参数必须在创建数据库时设置，并且不能更改。
2.remote_login_passwordfile
功能：指定远程用户的登录认证文件。
含义：此参数指定远程用户的登录认证文件，在数据库定义期间，远
程用户可以使用该文件登录数据库。
可以使用此参数将一些远程用户的标识指定为NONE，以确保只有本
地用户可以连接，而不允许远程用户连接。
3.log_archive_dest_state_2
功能：指定第二个归档日志目的地状态。
含义：此参数指定第二个归档日志目的地状态，如果设置为enable，则表示活动日志会被归档到该备用目的地，如果设置为disable，则表示
活动日志不会被归档到该备用目的地。
4.fal_server
功能：指定应用程序服务器名称。
含义：此参数指定应用程序服务器名称，例如，Fal_server等。
这些服务器用于远程归档日志，应用服务器可以是一台服务器，也可以是一组服务器。
5.log_archive_dest
功能：指定将归档日志文件发送到哪里。
含义：此参数指定将归档日志文件发送到哪里，可以是一个本地文件路径，也可以是一个远程服务器的文件路径。
data_guard_ppt
Talent Show
Primary database
LGWR ASYNC归档过程
standby database RFS MRP/LSP
LGWR
no us As yn ch ro
Real time apply
online redo log files
standby
LNSn
redo log files
北京时代朝阳数据库技术中心
Talent Show
Data Guard的logs文件
Online Redo Logs Files 联机重做日志文件 Archived Redo Logs Files 归档重做日志文件 Standby Redo Logs Files 备用重做日志文件
北京时代朝阳数据库技术中心
北京时代朝阳数据库技术中心
Talent Show
Data Guard配置(Data Guard Configurations)
Standby 数据库 ： 物理standby RAC数据库、单实例数据库 逻辑standby RAC数据库、单实例数据库 Primary 数据库 : RAC数据库、单实例数据库
有无数个名字，有人叫它dg，有人叫它数据卫士 ， 在oracle的各项特性中它有着举足轻重的地位 。 大多数人以为dg是一个备份恢复的工具。其实它不 仅仅是为了恢复数据 ，应该说它的存在是为了确保 企业数据的高可用性，数据保护以及灾难恢复 。 Data guard通过数据库的冗余来实现对数据的保护. Data guard通过在备用库应用redo data或sql实现 主、备数据库同步。 管理员可以通过将一些操作转移到standby数据库执 行的方式改善数据库性能。
LNSn
优炫数据库安全审计系统-用户手册
6.
系统功能介绍 ............................................................................................................................................................ 18
2.4. 2.5.
多路模式的审计、访问控制 ............................................................................................................. 6 双机热备 ............................................................................................................................................. 6
5.1. 5.2. 5.3.
第一步：添加数据库引擎 ............................................................................................................... 15 第二步：加入规则 ........................................................................................................................... 15 第三步：实施阻断和查看结果 ....................................................................................................... 16
2021年全国普通高等学校招生统一考试英语【含解析】
试卷主标题姓名：__________ 班级：__________学号：__________一、选择题（共15题）1、—Hi, I’m Peter. Are you new here? I haven’t seen you around?—Hello, Peter. I’m Bob. I just ________ on Monday.A．start B．have startedC．started D．had started2、（2018·北京）_________ we don’t stop climate change, many animals and plants in the world will be gone.A．Although B．WhileC．If D．Until3、（2018·北京）_________ along the old Silk Road is an interesting and rewarding experienceA．Travel B．TravelingC．Having traveled D．Traveled4、 Susan had quit her well-paid job and _________ as a volunteer in the neighborhood when I visited her last year.A．is working B．was workingC．has worked D．had worked5、（2018·北京）She and her family bicycle to work, _________ helps them keep fit.A．which B．whoC．as D．that6、（2018·北京）During the Mid-Autumn Festival, family members often gather together _________ a meal, admire the moon and enjoy moon cakes.A．share B．to shareC．having shared D．shared7、China’s high-speed railways _________ from 9,000 to 25,000 kilometers in the past few years.A．are growing B．have grownC．will grow D．had grown8、 In any unsafe situation, simply ________ the button and a highly-trained agent will get you the help you need.A．press B．to pressC．pressing D．pressed9、 A rescue worker risked his life saving two tourists who ________ in the mountains for two days.A．are trapping B．have been trappedC．were trapping D．had been trapped10、（2018· 北京）Ordinary soap, _________ correctly, can deal with bacteria effectively.A．used B．to useC．using D．use11、（2018· 北京）Without his support, we wouldn’t be _________ we are now.A．how B．whenC．where D．why12、(2018·北京) In today’s information age, the loss of data _________ cause serious problems for a company.A．need B．shouldC．can D．must13、（2018·北京）They might have found a better hotel if they _________ a few more kilometers.A．drove B．would driveC．were to drive D．had driven14、（2018·北京）—Good morning, Mr. Lee’s office.—Good morning. I’d like to make an appointment _________ next Wednesday afternoon.A．for B．onC．in D．at15、（2018· 北京）This is _________ my father has taught me—to always face difficulties and hope for the best.A．how B．whichC．that D．what二、完型填空（共1题）1、 The Homeless HeroFor many, finding an unattended wallet filled with £400 in cash would be a source （来源）of temptation（诱惑）. But the 16 would no doubt be greater if you were living on the streets with little food and money. All of this makes the actions of the homeless Tom Smith 17 more remarkable.After spotting a 18 on the front seat inside a parked car with its window down, he stood guard in the rain for about two hours waiting for the 19 to return.After hours in the cold and wet, he 20 inside and pulled the wallet out hoping to find some ID so he could contact（联系）the driver, onlyto 21 it contained £400 in notes, with another £50 in spare change beside it.He then took the wallet to a nearby police station after 22 a note behind to let the owner know it was safe. When the car’s owner John Anderson and his colleague Carol Lawrence returned to the car—which was itself worth £35, 000—in Glasgow city centre, they were 23 to find two policemen standing next to it. The policemen told them what Mr. Smith did and that the wallet was 24 .The pair were later able to thank Mr. Smith for his 25 .Mr. Anderson said：＂I couldn’t believe that the guy never took a penny. To think he is sleeping on the streets tonight 26 he could have stolen the money and paid for a place to stay in. This guy has nothing and27 he didn’t take the wallet for himself；he thought aboutothers 28 . It’s unbelievable. It just proves thereare 29 guys out there.＂Mr. Smith’s act 30 much of the public’s attention. He also won praise from social media users after Mr. Anderson 31 about the act of kindness on Facebook.Now Mr. Anderson has set up an online campaign to 32 money for Mr. Smith and other homeless people in the area, which by yesterday had received ￡8,000. ＂I think the faith that everyone has shown 33 him has touched him. People have been approaching him in the street; he’s had job 34 and all sorts,＂ Mr. Anderson commented.For Mr. Smith, this is a possible life-changing 35 . The story once again tells us that one good turn deserves another.16．A．hope B．aim C．urge D．effort17．A．still B．even C．ever D．once18．A．wallet B．bag C．box D．parcel19．A．partner B．colleague C．owner D．policeman20．A．turned B．hid C．stepped D．reached21．A．discover B．collect C．check D．believe22．A．taking B．leaving C．reading D．writing23．A．satisfied B．excited C．amused D．shocked24．A．safe B．missing C．found D．seen25．A．service B．support C．kindness D．encouragement26．A．when B．if C．where D．because27．A．rather B．yet C．already D．just28．A．too B．though C．again D．instead29．A．honest B．polite C．rich D．generous30．A．gave B．paid C．cast D．drew31．A．learned B．posted C．cared D．heard32．A．borrow B．raise C．save D．earn33．A．of B．at C．for D．in34．A．details B．changes C．offers D．applications35．A．lesson B．adventure C．chance D．challenge三、阅读理解（共5题）1、 My First Marathon（马拉松）A month before my first marathon, one of my ankles was injured and this meant not running for two weeks, leaving me only two weeks to train. Yet, I was determined to go ahead.I remember back to my 7th year in school. In my first P.E. class, the teacher required us to run laps and then hit a softball. I didn’t do either well. He later informed me that I was ＂not athletic＂.The idea that I was ＂not athletic＂ stuck with me for years. When I started running in my 30s, I realized running was a battle against myself, not about competition or whether or not I was athletic. It was all about the battle against my own body and mind. A test of wills!The night before my marathon, I dreamt t hat I couldn’t even find the finish line.I woke up sweating and nervous, but ready to prove something to myself.Shortly after crossing the start line, my shoe laces(鞋带) became untied. So I stopped to readjust. Not the start I wanted!At mile 3, I passed a sign: ＂GO FOR IT, RUNNERS!＂By mile 17, I became out of breath and the once injured ankle hurt badly. Despite the pain, I stayed the course walking a bit and then running again.By mile 21, I was starving!As I approached mile 23, I could see my wife waving a sign. She is my biggest fan. She never minded the alarm clock sounding at 4 a.m. or questioned my expenses on running.I was one of the final runners to finish. But I finished! And I got a medal. In fact, I got the same medal as the one that the guy who came in first place had.zxxkDetermined to be myself, move forward, free of shame and worldly labels(世俗标签), I can now call myself a ＂marathon winner＂.36．A month before the marathon, the author ____________.A．was well trained B．felt scaredC．made up his mind to run D．lost hope37．Why did the author mention the P.E. class in his 7th year?A．To acknowledge the support of his teacher.B．To amuse the readers with a funny story.C．To show he was not talented in sports.D．To share a precious memory.38．How was the author’s first marathon?A．He made it. B．He quit halfway.C．He got the first prize. D．He walked to the end.39．What does the story mainly tell us?A．A man owes his success to his family support.B．A winner is one with a great effort of will.C．Failure is the mother of success.D．One is never too old to learn.2、 Find Your Adventure at the Space and Aviation(航空) CenterIf you’re looking for a unique adventure, the Space and Aviation Center (SAC) is the place to be. The Center offers programs designed to challenge and inspire with hands-on tasks and lots of fun.More than 750,000 have graduated from SAC, with many seeking employment in engineering, aviation, education, medicine and a wide variety of other professions. They come to camp, wanting to know what it is like to be an astronaut or a pilot, and they leave with real-world applications for what they’re studying in the classroom.For the trainees, the programs also offer a great way to earn merit badges(荣誉徽章). At Space Camp, trainees can earn their Space Exploration badge as they buildand fire model rockets, learn about space tasks and try simulated(模拟) flying to space with the crew from all over the world. The Aviation Challenge program gives trainees the chance to earn their Aviation badge. They learn the principles of flight and test their operating skills in the cockpit(驾驶舱) of a variety of flight simulators. Trainees also get a good start on their Wilderness Survival badge as they learn about water- and land-survival through designed tasks and their search and rescue of ＂downed＂ pilot.With all the programs, teamwork is key as trainees learn the importance of leadership and being part of a bigger task.All this fun is available for ages 9 to 18. Families can enjoy the experience together, too, with Family Camp programs for families with children as young as 7.Stay an hour or stay a week — there is something here for everyone!For more details, please visit us online at .40．Why do people come to SAC?A．To experience adventures.B．To look for jobs in aviation.C．To get a degree in engineering.D．To learn more about medicine.41．To earn a Space Exploration badge, a trainee needs to .A．fly to spaceB．get an Aviation badge firstC．study the principles of flightD．build and fire model rockets42．What is the most important for trainees?A．Leadership. B．Team spirit.C．Task planning. D．Survival skills.3、 Plastic-Eating WormsHumans produce more than 300 million tons of plastic every year. Almost half of that winds up in landfills(垃圾填埋场), and up to 12 million tons pollute the oceans. So far there is no effective way to get rid of it, but a new study suggests an answer may lie in the stomachs of some hungry worms.Researchers in Spain and England recently found that the worms of the greater wax moth can break down polyethylene, which accounts for 40% of plastics. The team left 100 wax worms on a commercial polyethylene shopping bag for 12 hours, and the worms consumed and broke down about 92 milligrams, or almost 3% of it. To confirm that the worms’ chewing alone was not responsible for the polyethylene breakdown, the researchers made some worms into paste(糊状物) and applied it to plastic films. 14 hours later the films had lost 13% of their mass —apparently broken down by enzymes (酶) from the worms’ stomachs. Their findings were published in Current Biology in 2017.Federica Bertocchini, co-author of the study, says the worms’ ability to break down their everyday food — beeswax — also allows them to break down plastic. ＂Wax is a complex mixture, but the basic bond in polyethylene, the carbon-carbon bond, is there as well, ＂she explains, ＂The wax worm evolved a method or system to break this bond. ＂Jennifer DeBruyn, a microbiologist at the University of Tennessee, who was not involved in the study, says it is not surprising that such worms can break down polyethylene. But compared with previous studies, she finds the speed of breaking down in this one exciting. The next step, DeBruyn says, will be to identify the cause of the breakdown. Is it an enzyme produced by the worm itself or by its gut microbes(肠道微生物)?Bertocchini agrees and hopes her team’s findings might one day help employ the enzyme to break down plastics in landfills. But she expects using the chemical in some kind of industrial process — not simply ＂millions of worms thrown on top of the plastic.＂43．What can we learn about the worms in the study?A．They take plastics as their everyday food.B．They are newly evolved creatures.C．They can consume plastics.D．They wind up in landfills.44．According to Jennifer DeBruyn, the next step of the study is to .A．identify other means of the breakdownB．find out the source of the enzymeC．confirm the research findingsD．increase the breakdown speed45．It can be inferred from the last paragraph that the chemical might .A．help to raise wormsB．help make plastic bagsC．be used to clean the oceansD．be produced in factories in future46．What is the main purpose of the passage?A．To explain a study method on worms.B．To introduce the diet of a special worm.C．To present a way to break down plastics.D．To propose new means to keep eco-balance.4、 Preparing Cities for Robot CarsThe possibility of self-driving robot c ars has often seemed like a futurist’s dream, years away from materializing in the real world. Well, the future is apparently now. The California Department of Motor Vehicles began giving permits in April for companies to test truly self-driving cars on public roads. The state also cleared the way for companies to sell or rent out self-driving cars, and for companies to operate driverless taxi services. California, it should be noted, isn’t leading the way here. Companies have been testing their vehicles in cities across the country. It’s hard to predict when driverless cars will be everywhere on our roads. But however long it takes, the technology has the potential to change our transportation systems and our cities, for better or for worse, depending on how the transformation is regulated.While much of the debate so far has been focused on the safety of driverless cars(and rightfully so), policymakers also should be talking about how self-driving vehiclescan help reduce traffic jams, cut emissions(排放) and offer more convenient, affordable mobility options. The arrival of driverless vehicles is a chance to make sure that those vehicles are environmentally friendly and more shared.Do we want to copy — or even worsen — the traffic of today with driverless cars? Imagine a future where most adults own individual self-driving vehicles. They tolerate long, slow journeys to and from work on packed highways because they can work, entertain themselves or sleep on the ride, which encourages urban spread. They take their driverless car to an appointment and set the empty vehicle to circle the building to avoid paying for parking. Instead of walking a few blocks to pick up a child or the dry cleaning, they send the self-driving minibus. The convenience even leads fewer people to take public transport — an unwelcome side effect researchers have already found in ride-hailing(叫车) services.A study from the University of California at Davis suggested that replacing petrol-powered private cars worldwide with electric, self-driving and shared systems could reduce carbon emissions from transportation 80% and cut the cost of transportation infrastructure(基础设施) and operations 40% by 2050. Fewer emissions and cheaper travel sound pretty appealing. The first commercially available driverless cars will almost certainly be fielded by ride-hailing services, considering the cost of self-driving technology as well as liability and maintenance issues(责任与维护问题). But driverless car ownership could increase as the prices drop and more people become comfortable with the technology.Policymakers should start thinking now about how to make sure the appearance of driverless vehicles doesn’t extend the worst aspects of the car-controlled transportation system we have today. The coming technological advancement presents a chance for cities and states to develop transportation systems designed to move more people, and more affordably. The car of the future is coming. We just have to plan for it.47．According to the author, attention should be paid to how driverless cars can __________.A．help deal with transportation-related problemsB．provide better services to customersC．cause damage to our environmentD．make some people lose jobs48．As for driverless cars, what is the author’s major concern?A．Safety. B．Side effects.C．Affordability. D．Management.49．What does the underlined word ＂fielded＂ in Paragraph 4 probably mean?A．Employed. B．Replaced.C．Shared. D．Reduced.50．What is the author’s attitude t o the future of self-driving cars?A．Doubtful. B．Positive.C．Disapproving. D．Sympathetic.5、 Why Do We Get Angry?Anger seems simple when we are feeling it, but the causes of anger are various. Knowing these causes can make us examine our behavior, and correct bad habits. The main reasons we get angry are triggering（触发）events, personality traits（特征）, and our assessment of situations. 51．Triggering events for anger are so many that to describe them all would take hundreds of pages. However, here are some examples: being cut off in traffic, a deadline approaching, experiencing physical pain, and much more. 52． The reason why someone is triggered by something and others are not is often due to one’s personal history and psychological traits.Each person, no matter who they are, has psychological imbalances. People who have personality traits that connect with competitiveness and low upset tolerance are much more likely to get angry. 53． Also, sometimes pre-anger does not have to do with a lasting condition, but rather a temporary state before a triggering event has occurred.54．Sometimes even routine occurrences become sources of pre-anger, or anger itself. Sometimes ignorance and negative (消极的) outlooks on situations can create anger.55．However, anger can easily turn violent, and it is best to know the reasons for anger to appear in order to prevent its presence. With these main reasons in mind, we can evaluate our level of anger throughout the day and prevent cases of outbursts by comprehending the reasons for our feelings.A．Our attitude and viewpoint on situations can create anger within us as well.B．But some types of situations can help us to get rid of the occurrence of anger.C．Anger is rarely looked upon as a beneficial character trait, and is usually advised to reduce it.D．Anger is a particularly strong feeling and maybe people think that they have reasons to feel angry.E.Having these personality traits implies the pre-anger state, where anger is in the background of your mind.F.Understanding these reasons will control our own anger if we are willing to evaluate ourselves with a critical eye.G.Not everyone acts the same in response to events, and that is why what triggers one person may or may not trigger another.四、作文（共2题）1、（2018·北京）假设你是红星中学高三学生李华，你的英国朋友Jim在给你的邮件中提到他对中国文化感兴趣，计划明年来北京上大学。
(完整word版)OracleDataGuard容灾解决方案
Oracle DataGuard容灾解决方案目录一. 需求分析 (3)二。
解决方案 (3)2.1 拓扑架构 (3)2.2 方案特点 (4)2。
3 方案优势 (4)2.4 产品介绍 (5)三。
Oracle维保服务 (8)四. 方案报价 (11)一. 需求分析用户现有两台服务器，windows2008平台,一台运行oracle 11g r2，一台运行用友NC 6.3.现在通过每天备份的方式保证安全。
用户希望在他的另一个机房(裸光纤互联）中搭建容灾平台。
因此本方案针对以上现状,提出Oracle DataGuard容灾解决方案,这样主数据库在遇到极端状况时，可以及时切换到备库,保证业务的连续性。
二. 解决方案2.1 拓扑架构Dataguard可以实现远程数据容灾,利用该功能也可实现高可用性。
数据容灾是指建立一个异地的数据系统，该系统是本地关键应用数据的一个实时复制.在本地数据及整个应用系统出现灾难时，系统至少在或本地异地保存有一份可用的关键业务的数据，基于该功能,结合客户实际情况我方推荐使用其作为保证系统可靠运行的一种解决方案,由于两台机器的数据一致性以及低延迟,完全可以胜任,在主机出现故障时,切换至备机运行。
2.2 方案特点➢对现有的环境改动小,能最大限度的减少对现有应用系统的影响.➢能满足客户对海量数据的管理要求。
➢可以实现远距离容灾，对网络要求低，低延时，快速业务切换。
➢同步或异步日志传输；➢低成本的投入。
2.3 方案优势灾难恢复和高可用性 - Data Guard 提供了一个高效和全面的灾难恢复和高可用性解决方案。
易于管理的转换和故障切换功能允许主数据库和备用数据库之间的角色转换，从而使主数据库因计划的和计划外的中断所导致的停机时间减到最少。
完善的数据保护—使用备用数据库,Data Guard 可保证即使遇到不可预见的灾难也不会丢失数据.备用数据库提供了防止数据损坏和用户错误的安全保护。
主数据库上的存储器级物理损坏不会传播到备用数据库上。
建筑英汉翻译词汇11
建筑英汉翻译词汇11建筑英汉翻译词汇11general arrangement 总体布置；总体设计general conditions of tender 投标普通章程General Household Survey 综合住户统计调查general industrial land 一般工业用地general layout plan 总平面图general planning considerations 一般规划考虑因素general rates 一般差饷General Requisition for Particulars of Tenement 一般物业详情申报表general revaluation 全面重估应课差饷租值general shear failure 整体剪切破坏General Specification for Civil Engineering Works 《土木工程一般规格》General Specifications on Material and Workmanship 《物料与造工一般规格说明书》General Squatter Control Survey 全面寮屋登记General Waiting List 公屋总轮候册Generalised Limitations and Engineering Appraisal Map 一般规限及工程评估图gentle dip 缓倾斜genuine home-buyer 真正自住买家GEO Emergency Manual 《土力工程处紧急服务手册》geochemical data 地球化学资料；岩土数据geodetic datum 测地基准点；大地基准Geodetic Datums in Hong Kong 香港大地测量系统geodetic information system 大地信息系统Geodetic Section [Lands Department] 大地测量组〔地政总署〕geodetic survey 大地测量Geodetic Survey Information System 大地测量信息系统Geographic Place Names Board 地名订正委员会geographic reference system 定位查照系统geographical co-ordinate system 地理坐标系统geographical information system 地理信息系统geographical mapping 地理勘察；地理测绘geographical zone 地理分区geogrid 土工格杉geoid 大地水准面geological condition 地质状况geological data computer system 地质资料电脑系统geological map 地质图geological mapping 地质勘察；地质测绘geological memoir 地质报告geological profile 地质剖面geological survey 地质调查geological survey memoir 地质调查报告geological survey plan 地质调查图Geology Society of Hong Kong 香港地质学会geomancer 堪舆师geomembrane 土工膜；隔泥网膜geomorphologic map 地貌图geomorphology 地貌学geophysical exploration 地球物理勘探geophysical survey 地球物理测量geoscience database 地质科学资料库geostatic stress 地应力geosynthetics 土工合成材料geotechnical 岩土；土力geotechnical appraisal 岩土评估；土力评估Geotechnical Area Study Programme 地区岩土研究计划geotechnical assessment 岩土评估；土力评估geotechnical assessment study 岩土评估研究；土力评估研究geotechnical consultant 岩土工程顾问；土力工程顾问geotechnical control 岩土工程管制geotechnical data 岩土数据geotechnical design 岩土工程设计geotechnical design assumption 岩土设计假定Geotechnical Engineer 土力工程师Geotechnical Engineering Office [Civil Engineering Department] 土力工程处〔土木工程署〕geotechnical information unit [Civil Engineering Department] 岩土工程资料库〔土木工程署〕geotechnical investigation 岩土工程勘察；岩土工程勘探Geotechnical Land Use Map 岩土分析土地用途图Geotechnical Manual for Slopes 《斜坡岩土工程手册》geotechnical record 岩土记录geotechnical specialist 岩土工程专家geotechnical study 岩土工程调查；岩土工程研究geotechnical survey 土力测量geotechnically difficult site 有土力问题的建屋地盘geotextile 土工织物；隔泥纺织物料geyser 热水器Gini Coefficient 坚尼系数girder 主梁；大梁glaciation 冰蚀现象；冰川作用gland 封头；压盖glass block screen wall 玻璃幕墙glass bulb 玻璃泡glass fibre insulator 玻璃纤维绝缘器glass louvre 玻璃百叶窗glass mosaic tile 玻璃纸皮石；玻璃锦砖glass panel 玻璃嵌板glass reinforced concrete 玻璃纤维混凝土glass reinforced plastic pipe 玻璃强化胶管glass tile 玻璃砖glaze 装嵌玻璃片glazed brick 釉面砖glazed ceramic tile 釉面瓷砖glazed earthenware 釉面陶土glazed mosaic tile 釉面纸皮石glazed porcelain 玻璃瓷glazed tile 瓷砖；玻璃砖；釉面瓦glazed wall tile 墙壁瓷砖glazed ware 釉面物料glazier 玻璃工glazing bead 玻璃压条glazing compound 镶玻璃油灰glazing gasket 玻璃封边；玻璃镶边glazing works 装配玻璃工程Global Co-ordinate System 全球坐标系统global factor of safety 综合安全系数Global Positioning System [GPS] 全球卫星定位系统global stability problem 整体稳定性问题gloss paint 光油gneiss 片麻岩gondola 吊船工作台；吊船good title 妥善业权goods lift 载货升降机Government Chainmen Union 政府丈量员职工会government contractor 政府承建商government conveyancing 政府产权转易Government Engineer 政府工程师government grant 政府批地书government housing 政府房屋government land 政府土地Government Land Agent 政府地政监督government land allocation 政府拨地government land bank 政府储备土地Government Land Licence [GLL] 政府土地租用牌照Government Land Permit 政府土地租用许可证Government lease [formerly known as Crown lease] 政府租契〔前称官契〕Government lessee 政府土地承租人；政府土地承批人Government Local Civil Engineer’s Association 政府非海外土木工程师协会government low-cost housing estate 政府廉租屋government main 政府水喉总管Government Procurement Agreement 政府采购协议Government Property Administrator 政府产业署署长Government Property Agency 政府产业署government public works 政府公共工程government quarters 政府宿舍Government rent [formerly known as Crown rent] 地税Government Rent Collection Section [Lands Department] 地租追缴组〔地政总署〕Government Rent Demand Note 缴纳地税通知书Government Rent Reminder 催缴地税通知书Government Rent Roll 地税册Government rights [formerly known as Crown rights] 政府土地权〔前称官地权〕government slope 政府斜坡government use 政府用途government-aided housing 政府助建屋宇government-assisted housing project 政府资助建屋计划government/institution/community area 政府／团体／社区用地government/institution/community facility 政府／团体／社区用地设施government/institution/community use 政府／团体／社区用途government/institution/community zone 政府／团体／社区分区government-owned quarters 政府所拥有的宿舍grab dredger 抓斗式挖泥船grade strength 等级强度graded shop 分级铺位grader 平土机gradient 斜度；坡度grading analysis [soil] 级配分析；颗粒分析〔泥土〕grading curve 粒径分布曲线grain size 粒径grand summary to the bills of quantities 建筑工料清单摘要granite 花岗岩；花岗石granite chipping 花岗岩屑granite face 花岗岩面层；花岗岩砌面granite sett 小方块花岗岩granite tile 花岗岩砖granitic rock 花岗质岩石granodiorite 花岗闪长岩granolithic 石米granolithic finish 人造石铺面granolithic paving 人造铺地石granolithic paving finish 人造石铺面granolithic plaster 石米抹面；石米批荡grant conditions 批地条件；批地规约grant of land 批地grantee 承批人；承授人grantor 授予人granular 颗粒状的granular bedding [road] 路碎石层granular material 颗粒材graphite mould 石墨模子grass seed 草种grass seed mix 混合草种grass sod 草皮；方块草皮grass sprig 草苗grass sward 草层grass verge 植草路旁带grassland 草地grating 格栅；渠闸grating cover 格栅盖grave claimant 祖坟认领人grave compensation 墓地补偿gravel 砾石；卵石gravel pack 填砾gravelly sand 砾砂gravity core 重力取样gravity corer 重力式取样管gravity cover 重力覆盖gravity dam 重力坝gravity flow sewer 引力污水渠；无压污水渠gravity load 重力荷载gravity sewer system 引力污水渠系统gravity structure 重力式结构gravity type seawall 重力式海堤gravity water supply 天然水压供水；重力供水grease tank 隔油井grease trap 隔油池；隔油缸；“油隔”great lake rock 太湖石Green Card Scheme 平安卡计划green concrete 新浇混凝土；新拌混凝土；生混凝土green form 绿表green form applicant 绿表申请人Green Form Certificate 绿表资格证明书Green Form Certificate holder 绿表资格证明书持有人green link 绿化区Green Paper on Housing Subsidy to Tenants of Public Housing 《公屋住户房屋资助问题绿皮书》green wedge 楔形绿化地带greenfield centre [Type B Commercial Centre] 新发展区商场〔乙类商场〕grid 坐标网；方格网grid data 坐标网数据grid line 坐标线；网格线；分隔条grid of steel bars 钢条板grid system 坐标制；方格网制grill 烤炉grillage foundation 格排基础；格排地基grille 格栅；栏栅grille bar 栏栅铁枝grille block 通花砖grille panel 通花砖墙grille wall 通花砖墙grip length 握固长度grit 砂砾；砂粒grit removal 除砂grooved tile 槽纹瓷砖gross development value 总发展价值gross floor area [GFA] 楼面总面积；建筑楼面面积gross person space [temporary housing area] 总人位〔临时房屋区〕gross site area 地盘总面积gross weight 总重量；毛重ground anchor 地锚；地锚桩基ground bay 地下单位ground beam 地梁ground bearing pressure 地面承载力ground clearance 离地净高ground condition 土地状况；地面条件ground cover 铺地植物ground engineering 地基工程ground feature 地物；地貌ground floor 地下ground floor arcade 地下商场ground floor level 地面层水平ground floor shop 地下铺位ground improvement works 地面改善工程ground investigation 土地勘测；土地勘探；探土ground investigation field work [public works category] 现场勘探工程〔公共工程类别〕ground level 地面；地面水平；地面标高ground level contour 地面水平等高线ground level road 地面道路ground line 地平线ground movement 地面移动；地层移动ground pressure 地面压力ground profile 地形；地形剖面；地形切面ground rent 地租ground row light 地脚排灯ground settlement 土地沉降；地陷ground staff [Home Ownership Scheme] 派驻各屋苑职员〔居者有其屋计划〕ground stress 地应力ground surface 地面ground survey 地面测量ground survey method 地面测量法ground treatment works 土地处理工程；地层处理工程ground-breaking ceremony 动土礼ground-bus 接地母线grounding electrode 接地电极grounds for recovery of possession 收回管有的理由；收回楼宇理由groundwater 地下水groundwater catchment 地下水流域groundwater condition 地下水条件；地下水情况groundwater connectivity test 地下水连通实验groundwater depletion 地下水量枯竭groundwater discharge 地下水流量；地下水溢流groundwater divide 地下水分水岭groundwater drainage works 地下水排水工程groundwater flow direction 地下水流向groundwater level 地下水位groundwater monitoring 地下水监测groundwater pollution 地下水污染groundwater pressure measurement 地下水水压测试groundwater regime 地下水体系groundwater table 地下水位groundwater table fluctuation 地下水位变动Group A estate 甲类屋Group B estate 乙类屋group reduction factor [pile group] 桩组折减系数grout 水泥浆；薄浆；灌浆grout curtain 薄浆隔墙grout mix 薄浆混合料grout pipe 灌浆管grout tube 灌浆管grout vent pipe 灌浆排气管grout-bleeding 薄浆渗出；薄浆浮水grout-bleeding and free expansion 薄浆渗出及自由扩大grout-flow cone efflux time 薄浆流度锥流出时间grouting 灌浆grouting works 灌浆工程guard 护卫员；守卫guard kiosk 更亭guardhouse 护卫员室；警卫室Guidance Notes for Persons Applying for the Incorporation of an Owners Corporation at the Land Registry 《向土地注册处申请成立业主法团人士须知》Guidance Notes for the General Specification for Civil Engineering Works 《土木工程一般规格指引》guide pile 导桩Guide to Cavern Engineering [Geoguide 4] 《岩洞工程指南》〔《岩土指南》第四册〕Guide to Concord 1 Block 《康和一型大厦指南》Guide to Concord 2 Block 《康和二型大厦指南》Guide to Flexi-schools 《弹性十字型校舍指南》Guide to Harmony 1 Block 《和谐一型大厦指南》Guide to Harmony 2 Block 《和谐二型大厦指南》Guide to Harmony 3 Block 《和谐三型大厦指南》Guide to New Cruciform Block 《新十字型大厦指南》Guide to New Standard Schools 《新标准校舍指南》Guide to Retaining Wall Design [Geoguide 1] 《挡土墙设计指南》〔《岩土指南》第一册〕Guide to Rock and Soil Descri ptions [Geoguide 3] 《岩土描述指南》〔《岩土指南》第三册〕Guide to Site Investigation [Geoguide 2] 《场地勘察指南》〔《岩土指南》第二册〕Guide to Slope Maintenance [Geoguide 5] 《斜坡维修指南》〔《岩土指南》第五册〕Guide to Small Households Developments 《小单位发展计划指南》。
Oracle11g_DataGuard配置方案
Oracle Data Guard 实施与维护方案1.项目背景介绍在2台RedHat5.4上使用ORACLE 的DataGuard组件实现容灾。
设备配置(VMWare虚拟机环境)清单如下：2.Oracle DataGuard 介绍备用数据库（standby database）是ORACLE 推出的一种高可用性(HIGH AVAILABLE)数据库方案，在主节点与备用节点间通过日志同步来保证数据的同步，备用节点作为主节点的备份，可以实现快速切换与灾难性恢复。
●STANDBY DATABASE的类型：有两种类型的STANDBY：物理STANDBY和逻辑STANDBY两种类型的工作原理可通过如下图来说明：physical standby提供与主数据库完全一样的拷贝（块到块），数据库SCHEMA，包括索引都是一样的。
它是可以直接应用REDO实现同步的。
l ogical standby则不是这样，在logical standby中，逻辑信息是相同的，但物理组织和数据结构可以不同，它和主库保持同步的方法是将接收的REDO转换成SQL语句，然后在STANDBY上执行SQL语句。
逻辑STANDBY除灾难恢复外还有其它用途，比如用于用户进行查询和报表，但其数据库用户相关对象均需要有主键。
✧本次实施将选择物理STANDBY(physical standby)方式●对主库的保护模式可以有以下三种模式：–Maximum protection (最高保护）–Maximum availability （最高可用性）–Maximum performance (最高性能）✧基于项目应用的特征及需求，本项目比较适合采用Maximum availability （最高可用性）模式实施。
3.Dataguard 实施前提条件和注意事项：●灾备环境中的所有节点必须安装相同的操作系统，尽可能令详细补丁也保持相同。
●灾备环境中的所有节点必须安装完全相同版本的Oracle数据库软件，包括版本号和发布号，比如必须都是Oracle 11.2.0.1●主库必须处于归档（ARCHIVELOG）模式。
HP-Data Protecto操作手册1卷安装与备份
复审日期:
ห้องสมุดไป่ตู้
日期
电话/传真
截止日期
电话/传真
*行动类别:批准,复审,通知,存档,所需行动,参加会议,其它(请指明)
版本记录
版本编号
1．0
版本日期
2007/06/28
修改者
董剑宇
说明
编撰
文件名
日常操作监控手册.doc
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一． 文档介绍 ................................................................................................................................................ 4 1.1 目的............................................................................................................................................................... 4 1.2 范围............................................................................................................................................................... 4 1.3 责任人........................................................................................................................................................... 4
迅维文印安全管理软件 管理员使用手册说明书
迅维文印安全管理软件管理员使用手册软件版本编制时间编制人员手册版本修订原因V3.02022.5Kennan 1.0制订_2022__年_5_月目录一、引言 (4)1.1编写目的 (4)1.2系统背景 (4)1.3产品定位 (4)1.4功能模块 (5)1.5版权声明 (6)二、系统概述 (7)2.1系统应用场景 (7)2.2系统功能架构 (7)2.3系统功能版本 (8)2.4系统部署环境 (9)2.4.1硬件环境 (9)2.4.2软件环境 (9)2.4.3端口占用表 (10)三、系统使用指南 (11)3.1仪表盘 (11)3.1.1文印概况 (12)3.1.2设备状况 (13)3.1.3特征分布图 (13)3.1.4趋势图 (13)3.1.5印量排名 (14)3.2作业管理 (14)3.2.1作业列表 (14)3.2.2留底追溯 (16)3.2.3待审批作业 (17)3.3设备管理 (19)3.3.1打印机管理 (19)3.3.2设备组 (21)3.3.3设备型号 (21)3.3.4读卡器管理 (22)3.3.5卡号解析管理 (22)3.4成本管理 (26)3.4.1计费单价管理 (27)3.4.2配额规则 (29)3.5用户管理 (31)3.5.1用户管理 (31)3.5.2部门管理 (33)3.5.3域管理 (33)3.5.4角色管理 (35)3.6报表管理 (36)3.6.1设备报表 (36)3.6.2用户报表 (37)3.6.3部门报表 (37)3.6.4配额报表 (38)3.6.5双面使用率 (38)3.6.6作业趋势图 (39)3.6.7作业明细 (39)3.7运维管理 (40)3.7.1活动墙 (40)3.7.2网络抄表 (40)3.8系统管理 (42)3.8.1授权信息 (42)3.8.2管控服务 (44)3.8.3系统参数配置 (44)3.9企业设置 (45)3.9.1邮箱配置向导 (45)3.9.2WeLink配置 (45)3.9.3IMC配置 (46)3.10企业定制 (46)3.10.1WEB端定制 (46)3.10.2客户端定制 (47)一、引言1.1编写目的本文档是用于指导、培训迅维文印安全管理软件V3.0的客户，配置、使用、维护本系统时所必备的参考资料，本手册针对增强版编写，专业版或旗舰版可能存在部分说明与实际页面不符，敬请谅解。
DataGuard之自动删除已应用的归档日志
建议先在备库上删除已被应用的归档日志，然后在到 primary 库上删除这个日志，写Shell脚本之前，几个地方需要注意下：1 如何判断备机上哪些日志已经被应用到备库上?可以通过查询 v$archived_log的字段 applied 字段来判断，同时加上REGISTRAR 和 name的限制条件， REGISTRAR='RFS' 表示是 Remote File Server process 进程，别外加上name isnot null 是因为，通过rman crosscheck 并删除 expired的 archivelog 后 name 字段会被置空，--sql 如下SELECT name, SEQUENCE#, FIRST_TIME, REGISTRAR, APPLIED, NEXT_TIME, statusFROM V$ARCHIVED_LOGwhere applied = 'YES'and REGISTRAR = 'RFS'and name is not nullORDER BY SEQUENCE#;2 在备机删除了已归档的archivelog后，如何在远端 primary 库同时删除这个日志? 这个问题在网上查了些资料，可以通过配置公钥和私钥，配置之后，scp 文件，ssh 到远程主机执行命令都可以不用输入密码，具体原理可以到网上查查，这两点克服后，就可以写脚本了。
-------- 脚本 clear_arch_orasid.sh------- 功能：删除备机被 applied 的归档日志，同时也到主库上删除这个归档日志。
#!/bin/bash#Author Francs.tan#Date 2010-12-20#################################################Set Result Flag#0-Successful#1-No Archived log that have been applied by standby database#2-ERROR:Excute file clear_primary.sh#3-ERROR: File clear_primary.sh delete error#initialize variableRESULT_FLAG=0file_num='0'export ORACLE_HOME=/opt/oracle/product/10.2.0/db_1export PATH=${ORACLE_HOME}/bin:${PATH}export ORACLE_SID=orasidexport script_dir=/home/oracle/script/clear_archexport log_dir=/home/oracle/script/clear_arch/logDATE=`date +%Y%m%d`## Select the earliest archived log file that have been applied by standby databasesqlplus -s "/as sysdba"<<EOFset echo offset head offset linesize 200set feedback off;col name format a50;col REGISTRAR format a10;col APPLIED format a10;spool ${script_dir}/archivelog_list.txtselect 'file_num=' || name from (SELECT nvl(name, '0') as name FROM V\$ARCHIVED_LOG where applied = 'YES' and REGISTRAR = 'RFS' and name is not null ORDER BY SEQUENCE#) where rownum = 1;spool off;exitEOF##Delete earliest archived log file that applied by standby database control_file=${script_dir}/archivelog_list.txt. ${control_file}if [ ${file_num} == '0' ]thenecho "WARNING: No Archived log that have been applied by standby database !" | tee -a ${log_file}RESULT_FLAG=1echo "Result Flag:${RESULT_FLAG}" | tee -a ${log_file}exit ${RESULT_FLAG}filog_file=${log_dir}/clear_log_${DATE}.logecho "************ begin rm archivelog file = ${file_num} ************* " | tee -a ${log_file}rm -f ${file_num}##Crosscheck archivelogecho "************* begin Crosscheck archivelog ************* " | tee -a ${log_file}. ${script_dir}/check_arc.sh >> ${log_file}## Delete primary archived logecho "************* Delete primary archived log ************* " | tee -a ${log_file}echo "rm -f ${file_num}" > ${script_dir}/clear_primary.shscp ${script_dir}/clear_primary.sh **************.xxx.xx:${script_dir} ssh **************.xxx.xx chmod u+x ${script_dir}/clear_primary.sh ssh **************.xxx.xx ${script_dir}/clear_primary.shif [ $? -ne 0 ] ####如果前一条命令执行成功,则返回非0,否则为0thenecho "***********************************************************"| tee -a ${log_file}echo "ERROR:Excute file clear_primary.sh ,please check it! " | tee -a ${log_file}echo "***********************************************************" | tee -a ${log_file}RESULT_FLAG=2echo "Result Flag:${RESULT_FLAG}" | tee -a ${log_file}exit ${RESULT_FLAG}fi##rm temp filesecho "************* Remove temp files ************* " | tee -a ${log_file}rm -f ${control_file}rm -f ${script_dir}/clear_primary.shssh **************.xxx.xx rm -f ${script_dir}/clear_primary.shif [ $? -ne 0 ] ####如果前一条命令执行成功,则返回非0,否则为0thenecho "***********************************************************" | tee -a ${log_file}echo "ERROR: File clear_primary.sh delete error ,please check it! " | tee -a ${log_file}echo "***********************************************************" | tee -a ${log_file}RESULT_FLAG=3echo "Result Flag:${RESULT_FLAG}" | tee -a ${log_file}exit ${RESULT_FLAG}fiecho "****** Remove archivelog of Primary and Standby database successfully ! *****" | tee -a ${log_file}exit#end---- check_arch.sh---- 功能：在备库上较验归档日志，并删除过期的归档日志。
OpenText Data Protector：企业级备份与恢复软件解决方案说明书
T op T en Features of Data Protector for Ransomware RecoveryOpenT ext Data Protector is an enterprise class, highly scalable backup and recovery software solu-tion. Its deep integration with hardware storage providers provides a single backup and recovery solution for simple or complex hybrid-IT environments. It provides a complete protection for unstruc-tured data, mission critical application, Operating Systems and virtualized environments.At many organizations, the assumption is that their backup system would be the logical means of restoring files corrupted in the event of a ransomware attack. However, the sophistication of recent attacks has many security experts recommending that you keep multiple backups1 in various locations, with restrictive administrative and system access2, in other words, they`ve recommended to follow the 3-2-1 backup rule. See how OpenT ext™ Data Protector, with its functionalities, addresses these recommendations in the features and benefits described below.1. P rotects High-Value Targets. Amid all of the potential petabytes of files on yourenvironment, some of them are absolutely vital and their loss or corruption would becatastrophic. Data Protector could set different RPO and RTO targets depending onapplication value.2. I nstant recovery via native application integrations. Data Protector provides one ofthe most comprehensive mission critical applications protection for applications. Thisprovides backup support across the enterprise and ensures business continuity witha rapid recovery after any data loss or system interruptions.3. I mprove application performance and data availability with advanced recoveryoptions. Data Protector provides application aware automated snapshot management.IT staff could set snapshots on an hourly basis, minimizing the amount of data loss ifransomware strikes.4. A utomated disaster recovery. Automate DR with centralized bare metal recoveryfrom or to physical and virtual systems from any existing file system or image. Thisoption is enabled with a single click at no additional costs.__________1How to protect backups from ransomware,Maria Korolov, CSO Nov 2, 20202Ransomware Damage Report: 2017 Edition,Herjavec Group, May 24, 2017Data Protector saves IT administrator’s time and ensures business continuity by providinga disaster recovery process thatis built for modern enterprise IT environments. With Data Protector, administrators can:■Q uickly recover data and systems after a security breach, such as aransomware attack.■R eestablish operations at local and remote offices after natural disasters.■S treamline IT management by using the same solution for backup anddisaster recovery.■I ncrease efficiency and business agility by recovering data to newsystems with dissimilar hardwareand hypervisors.■I mprove business continuity by ensuring up-to-date recovery images.■S implify disaster recovery using an interactive recovery wizard.Top Reasons5. S ecure Backups. Data Protector has adopted a secure approach to protect backupswith a built-in security model. It is an enterprise-level backup and recovery solutionwith several methods of protecting backup data, such as encrypting backups duringstorage and while they are being transferred. In addition, Data Protector is CommonCriteria certified3.6. B ackup to cloud. Data Protector features native integration to the Amazon S3,Microsoft Azure, Scality, and Ceph cloud storage solutions. All data exchanged with orstored within these services is compressed and encrypted for efficiency and security.Extensive additional cloud backup options are available with the Data Protector forCloud Workloads extension product.7. T ape Archive and Cyberattack Protection. Tape backup provides security fromransomware attacks by backing up data onto a media type which is isolated from theregular system environment and so prevents malicious code from infecting the sys-tems and data.8. T he power of OpenT ext. OpenT ext Data Protector integrates with many OpenT ext™portfolio products including powerful automation tools to ensure businesses can maxi-mize their productivity and simplify their environments. Automating routine tasks, suchas regular maintenance, provisioning of resources, analytics and incident resolutionmay reduce operational costs and manual errors.9. G ain operational insights through advanced analytics. The new reporting tool usesreal-time intelligence derived from operational analytics to provide hindsight to resolveissues, insight to reflect the current process state and relationships, and foresight toenable prediction of future needs.10. S tandardized protection. Finally, Data Protector provides a unified and scalablearchitecture that enables centralized management across physical and virtual-ized environments, disparate OSs, and business applications from the core datacenter to remote sites. A single and comprehensive backup solution for hetero-geneous hybrid IT environments.Learn more at:/dataprotector/opentextDownload a free trial at:/en-us/products/data-protector-backup-recovery-software/free-trial__________3NIAP web page269-000018-001 | O | 04/23 | © 2023 Open T ext。
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Master Note for Data Guard [ID 1101938.1]Modified 12-AUG-2010 Type BULLETIN Status PUBLISHEDIn this DocumentPurposeScope and ApplicationMaster Note for Data GuardSetup and Configuration of Data GuardPatching, Upgrade and MigrationManaging Data Guard - Physical StandbyManaging Data Guard - Logical StandbySwitchover and FailoverPerformanceTroubleshootingDataguard and RACMiscellaneousApplies to:Oracle Database Products > Oracle Database > High AvailabilityInformation in this document applies to any platform.PurposeThis Master Note is intended to provide an index and references to the most frequently used My Oracle Support Notes with respect to Data Guard implementations. This Master Note is subdivided into categories to allow for easy access and reference to notes that are applicable to your area of interest, within the Data Guard.Scope and ApplicationThis is a master note for the data guard content that can be accessed from one pageMaster Note for Data GuardThis note applies to the following versions of these products:Oracle Server - Enterprise Edition - Version: 10.2.0.1 to 10.2.0.xOracle Server - Enterprise Edition - Version: 11.1.0.6 to 11.1.0.xOracle Server - Enterprise Edition - Version: 11.2.0.1 to 11.2.0.xOracle Server - Enterprise Edition - Version: 10.2.0.1 to 10.2.0.xSetup and Configuration of Data GuardNote.343424.1 Creating a 10gr2 Data Guard Physical Standby database with Real-Time apply Note.380449.1 Creating a RAC Physical Standby for a RAC PrimaryNote.387339.1 Creating a Single Instance Physical Standby for a RAC Primary Creating a RAC Logical Standby Database for a RAC Primary DatabaseClient Failover setup in Data Guard ConfigurationsData Guard Fast-Start Failover - Best PracticesSetup Multiple Standby Databases - Best PracticesPatching, Upgrade and MigrationNote.278641.1 Applying Patchset with a 10g Physical Standby in PlaceNote.278521.1 Upgrading to 10g with a Physical Standby in PlaceNote 437276.1 Upgrading Oracle Database with a Logical Standby Database In Place Note 756671.1 Oracle Recommended Patches -- Oracle DatabaseRolling Database Upgrades Using Data Guard SQL ApplyMinimal Downtime Migration to ASMOracle 10g Upgrade Companion - for upgrading from Oracle9i to Oracle10gManaging Data Guard - Physical StandbyAdding a Datafile or Creating a TablespaceDropping Tablespaces and Deleting DatafilesRenaming a Datafile in the Primary DatabaseRecovering Through the OPEN RESETLOGS StatementOpening a Physical Standby Database for Read-Only AccessNote.382686.1 CAN DATAGUARD HAVE DIFFERENT SCHEMA ACCOUNT STATUS FOR PRIMARY AND STANDBY DB ?Note. 394815.1 How to Rename the Datafiles When using OMF in StandbyManaging Data Guard - LogicalUsing DBMS_LOGSTDBY.SKIP to Prevent Changes to Specific Schema ObjectsModifying a Logical Standby DatabaseSwitchover and FailoverNote.414043.1 Transitions for Data Guard Configurations Using Mixed Oracle BinariesNote.738642.1 Step by Step Guide on How To Reinstate Failed Primary Database into Physical StandbyData Guard Switchover and Failover - Best PracticePerformanceTuning a Logical Standby DatabaseTroubleshootingNote 814417.1 Information to gather and upload for Dataguard related problemsNote.241374.1 Script to Collect Data Guard Primary Site Diagnostic InformationNote.241438.1 Script to Collect Data Guard Physical Standby Diagnostic InformationNote.241512.1 Script to Collect Data Guard Logical Standby Diagnostic InformationDataguard and RACNote.370434.1 How to make CRS aware of the role change in Data Guard environment?MiscelleanousNote 386830.1 ALERT: Bug 5380055 Corrupts Index Blocks Especially in Data Guard ConfigurationsCommon Dataguard errorsORA-16057 DGID from server not in Data Guard configurationORA-12154 TNS No ListenerOracle Server - Enterprise Edition - Version: 11.1.0.6 to 11.1.0.xSetup and Configuration of Data GuardCreating a Physical Standby DatabaseCreating a Logical Standby DatabasePatching, Upgrade and MigrationRolling Database Upgrades using Data Guard SQL ApplyRolling Database Upgrades for Physical Standby Databases using Transient Logical Standby 11g Oracle 11g Upgrade Companion - for upgrading from Oracle9i to Oracle11gManaging Data Guard - Physical StandbyRedo Apply Best PracticesManaging Data Guard - Logical StandbySQL Apply Best PracticesMonitoring a Logical Standby DatabaseSwitchover and FailoverRole Transitions Involving Physical Standby DatabasesRole Transitions Involving Logical Standby DatabasesUsing Flashback Database After a Role TransitionPerformanceTuning a Logical Standby DatabaseTroubleshootingNote 814417.1 Information to gather and upload for Dataguard related problemsNote.241374.1 Script to Collect Data Guard Primary Site Diagnostic InformationNote.241438.1 Script to Collect Data Guard Physical Standby Diagnostic Information Note.241512.1 Script to Collect Data Guard Logical Standby Diagnostic Information Setting Archive TracingDataguard and RACData Guard 11g Installation and Configuration Best Practices on Oracle RAC MiscellaneousActive Data Guard 11g Best PracticesConfiguring Oracle Business Intelligence Enterprise Edition Server with Active Data Guard Common Data Guard errorsUsing My Oracle Support Effectively∙Note 374370.1 New Customers Start Here∙Note 736737.1 My Oracle Support - The Next Generation Support Platform∙Note 730283.1 Get the most out of My Oracle Support∙Note 747242.5 My Oracle Support Configuration Management FAQ∙Note 868955.1 My Oracle Support Health Checks Catalog∙Note 166650.1 Working Effectively With Global Customer Support∙Note 199389.1 Escalating Service Requests with Oracle Support ServicesRelatedProducts∙Oracle Database Products > Oracle Database > High Availability >KeywordsDATAGUARD; DATA GUARD; HIGH AVAILABILITY; PHYSICAL STANDBY; STANDBY DATABASE ErrorsORA-12154; ORA-16057。