VMW_09Q1_WP_vSphereStorage_P10_R1
vmontion vstorage 迁移方法
vmontion vstorage 迁移方法
迁移VMotion和vStorage是VMware虚拟化环境中常用的方法，用于迁移虚拟机和存储数据。
VMotion迁移方法：
1. 在vSphere客户端中，选择要迁移的虚拟机，右键单击并选择"Migrate"。
2. 在迁移虚拟机向导中，选择要迁移的目标主机。
3. 选择要迁移虚拟机的网络适配器设置。
4. 选择要迁移的虚拟机的存储配置。
5. 选择迁移类型，如同时迁移虚拟机的存储和计算资源，或仅迁移存储资源。
6. 检查设置，并单击"Finish"开始迁移。
vStorage迁移方法：
1. 在vSphere客户端中，选择要迁移的虚拟机，右键单击并选择"Storage vMotion"。
2. 在迁移虚拟机存储向导中，选择要迁移的目标存储。
3. 选择存储要放置的目标主机。
4. 检查设置，并单击"Finish"开始迁移。
请注意，VMotion和vStorage迁移方法在不同的VMware产品版本中可能会有所不同。
排除vSphere非活动存储无法卸载或删除故障
非活动存储
图1 出现“资源xx正在使用”错误
删除，可是怎么也删除不了。
笔者尝试了很多办法，才删
除掉这台顽固的故障存储。
问题描述
打开浏览器，输入
vCenter服务器地址，以
vSphere Web Client方式
图2 故障存储的右键菜单显示图3 有一台虚拟机状态显示“不可访问”图4 显示没有分配CPU、内存等信息原因分析事前笔者就知道存储已有故障，户单位网管员只是想把故障存储从存储清单里面删除，并不想使用这个可能仍和故只要存在某就不能将故障存储里此时故障存故不能对它该故障在使用等错误提示。
该右键菜单中的“维护模式”的两个子菜单项“进入维护模式”和“退出维护”都是灰色的。
操作过程1.首先查看与存储关联的虚拟机，选中故障存储，单（
障存储关联得这台主机不在故障存储的主机列表中了，
依次断
最后只剩下一台主机无论如何不能切断
现在是无法切断主机
也不能切断故障虚拟机和存储之间的只能找到前面不能删
发现根本不能
（如图6所
通过上述操作，
不难分析出故障存储、故障
个对象之图5 可以查看和故障存储关联的主机
图6 无法删除故障虚拟机
图7 任何两个对象间均存在映射关系
图8 显示之前的故障都消失了
■ 湖北 张辛欣
图1 UPS过载出现故障
故障排查
笔者觉得很奇怪，应该是
供电失败后转旁路，为什么
会不给供电，导致网络中心
里所有服务器和交换机都断
电，突然掉电会造成机器硬
件很大的损伤。
首先试着推上转旁路开
关，无效，仍然报错；接着断。
VMware vSphere常见问题汇总(17)
VMware vSphere常见问题汇总(十七)170. Vmdk 的重做日志已损坏解题思路[vmware-]环境：esxi5.0，vc5.0故障问题：执行storage vmotion之后，虚拟机出现了报错。
报错信息：xssj-000003.vmdk is corrupted.power off the virtual machine. If the problem still persists, discard the redo log.解提思路：【故障原因】由于快照之间的关系出现异常，导致vm启动失败：Vmware-34.log:2013-01-14t08:36:53.885z| vmx| disklib-chain :"/vmfs/volumes/50f13506-075ed29b-86b5-5ef3fd359eab/???è???3????184/xssj-000005.vmdk" : failed to open (the parent virtual disk has been modified 34.log:2013-01-14t08:36:53.886z| vmx| disklib-lib : failed to open'/vmfs/volumes/50f13506-075ed29b-86b5-5ef3fd359eab/???è???3????184/xssj-000006.vmdk' with flags 0xa the parent virtual disk has been modified since the child was created. The content id of the parent virtual disk does not match the corresponding parent content id in the child (18).Vmware-34.log:2013-01-14t08:36:53.886z| vmx| disk: cannot open disk"/vmfs/volumes/50f13506-075ed29b-86b5-5ef3fd359eab/???è???3????184/xssj-000006.vmdk": the parent virtual disk has been modified since the child was created. The content id of the parent virtual disk does not match the corresponding parent content id in the child (18).Vmware-34.log:2013-01-14t08:36:53.886z| vmx| msg_post: errorVmware-34.log:2013-01-14t08:36:53.886z| vmx| [msg.disk.nobackend] cannot open the disk '/vmfs/volumes/50f13506-075ed29b-86b5-5ef3fd359eab/???è???3????184/xssj-000006.vmdk' or one of the snapshot disks it depends on.Vmware-34.log:2013-01-14t08:36:53.886z| vmx| [msg.disk.configurediskerror] reason: the parent virtual disk has been modified since the child was created. The content id of the parent virtual disk does not match the corresponding parent content id in the child.Vmware-34.log:2013-01-14t08:36:53.900z| vmx| module diskearly power on failed.【快照之间的联系】正常情况下，原始磁盘与快照是通过parent content id来关联，父快照与子快照之间也是通过parent content id，但是现在我们查看原始磁盘与快照磁盘之间的关系，发现它们的cid和parentcid是混乱的，信息如下：Xssj.vmdk:cid=ba60eb23Xssj.vmdk:parentcid=ffffffffXssj-000001.vmdk:cid=27f8a456Xssj-000001.vmdk:parentcid=ba60eb23Xssj-000002.vmdk:cid=11ed1dacXssj-000002.vmdk:parentcid=27f8a456Xssj-000003.vmdk:cid=2583a010Xssj-000003.vmdk:parentcid=2583a010Xssj-000004.vmdk:cid=2583a010Xssj-000004.vmdk:parentcid=11ed1dacXssj-000005.vmdk:cid=4d38fabfXssj-000005.vmdk:parentcid=2583a010Xssj-000006.vmdk:cid=9402bf1aXssj-000006.vmdk:parentcid=a30d0e91可以看到这个磁盘关系从xssj.vmdk磁盘到xssj-000002.vmdk之间的关系都是没有问题的。
华三路由器软件升级指南
storage vmotion原理
storage vmotion原理Storage vMotion是VMware vSphere虚拟化平台的一个重要功能，它可以在不中断虚拟机运行的情况下，将虚拟机的存储从一个存储设备迁移到另一个存储设备。
这个功能对于虚拟化环境中的存储管理和资源优化具有重要意义。
本文将从原理角度解析Storage vMotion的工作原理。
在理解Storage vMotion之前，我们先了解一下vMotion的概念。
vMotion是VMware vSphere平台的另一个重要功能，它可以在不中断虚拟机运行的情况下，将虚拟机的计算资源从一台物理主机迁移到另一台物理主机。
vMotion通过迁移虚拟机的内存、CPU状态以及网络连接等信息，实现虚拟机的无缝迁移。
而Storage vMotion则是在vMotion的基础上，将虚拟机的存储也一并迁移，从而实现对存储资源的动态管理和优化。
Storage vMotion的原理可以概括为以下几个步骤：1. 存储迁移准备：在进行存储迁移之前，需要先对目标存储设备进行准备工作。
这包括创建目标存储设备上的虚拟机文件目录，以及为虚拟机分配足够的存储空间。
同时，还需要在源存储设备和目标存储设备之间建立数据传输通道。
2. 存储迁移预复制：在进行存储迁移时，首先需要将虚拟机的存储数据从源存储设备复制到目标存储设备上。
这个过程称为预复制，通过预复制可以确保在迁移过程中虚拟机的数据始终保持一致性。
预复制过程中，源存储设备上的写操作会同时同步到目标存储设备上，以保证数据的一致性。
3. 存储迁移同步：在预复制完成之后，Storage vMotion会启动一个同步过程，将源存储设备上的写操作同步到目标存储设备上。
在同步过程中，源存储设备会将写操作的数据块复制到目标存储设备上，以保证数据的一致性。
同时，源存储设备会将写操作的数据块标记为“已同步”，以便在迁移完成后进行后续处理。
4. 存储迁移完成：当同步过程完成后，Storage vMotion会切换虚拟机的存储路径，将虚拟机的存储访问从源存储设备切换到目标存储设备。
VmwarevSphere常见问题汇总大全64问
VmwarevSphere常见问题汇总⼤全64问1、启⽤客户机操作系统和远程控制台之间的复制和粘贴操作解决⽅法：要在客户机操作系统和远程控制台之间进⾏复制和粘贴，必须使⽤vSphere Client 启⽤复制和粘贴操作。
步骤a、使⽤vSphere Client 登录到vCenter Server 系统并选择虚拟机。
b、在摘要选项卡中，单击编辑设置。
c、选择选项> ⾼级> 常规，然后单击配置参数。
d、单击添加⾏，并在“名称”和“值”列中键⼊以下值。
名称值isolation.tools.copy.disable falseisolation.tools.paste.disable false注意这些选项将替代在客户机操作系统的VMware Tools 控制⾯板中做出的任何设置。
e、单击确定以关闭“配置参数”对话框，然后再次单击确定以关闭“虚拟机属性”对话框。
f、重新启动虚拟机。
2、sco系统迁移过去之后找不到启动列表解决⽅法：⽬前解决⽅法：使⽤软驱制作应急盘，通过应急盘来找到启动列表，如果不⾏的话，只能使⽤，现成的虚拟镜像导⼊vmware中，但是这种⽅法，要⾃⼰设置与⾃⼰相关的应⽤。
3、linux做迁移时⼿动添加的逻辑分区（LVM卷），迁移过去之后找不到这些分区解决⽅法：：给虚拟机额外添加硬盘后融合，然后将数据重新拷⼊加⼊的硬盘中。
4、安装esxi的时候找不到万兆⽹卡解决⽅法：解决⽅法：安装各个⼚商OEM的esxi版本。
5、迁移时提⽰vss原卷不能克隆解决⽅法：解决⽅法：查看是否有额外的设备插在服务器上，如usb设备。
6、Windows迁移之后，配置⽹卡的时候，会提⽰“IP已经被分配给其他的适配器”解决⽅法：打开命令⾏窗⼝（运⾏cmd），输⼊：（1）、set DEVMGR_SHOW_NONPRESENT_DEVICES=1（2）、devmgmt.msc在弹出的“设备管理器”窗⼝。
选择“查看（V）”---“显⽰隐藏的设备（W）”，然后展开“⽹络适配器”⼦项，可以看到⼀些透明图标显⽰的⽹卡信息，这些信息是源服务器的物理⽹卡信息。
VMware-vSphere日常操作手册
虚拟化操作手册2018年1月23日目录一、vsphere虚拟化管理错误!未定义书签。
1) 虚拟化组成及介绍错误!未定义书签。
2) ESXi 错误!未定义书签。
3) 登录vcenter 错误!未定义书签。
4) 新建虚拟机错误!未定义书签。
5) 虚拟机的开启、安装操作系统和关闭错误!未定义书签。
6) 安装VMTOOLS 错误!未定义书签。
7) 更改虚拟机CPU和内存配置错误!未定义书签。
8) 增加虚拟机硬盘错误!未定义书签。
9) 虚拟机增加网卡错误!未定义书签。
10) 新建portgroup 错误!未定义书签。
11) 虚拟机在ESXI主机间迁移错误!未定义书签。
12) 虚拟机在存储LUN间迁移错误!未定义书签。
13) 克隆虚拟机错误!未定义书签。
14) 倒换成模板错误!未定义书签。
15) 模板倒换成虚拟机错误!未定义书签。
16) 删除虚拟机错误!未定义书签。
17) 对ESXi的物理主机关机维护操作错误!未定义书签。
三、P2V转换错误!未定义书签。
1) 安装Converter Server 错误!未定义书签。
2) 登录Converter Server client 错误!未定义书签。
3) Linux P2V 错误!未定义书签。
4) Windows P2V 错误!未定义书签。
vsphere虚拟化管理虚拟化组成及介绍Vsphere 包括vcenter和ESXI主机组成.虚拟机运行在ESXI主机上。
ESXI系统安装在物理服务器上。
Venter是虚拟化的管理平台，它安装在一台虚拟机上。
ESXi连接服务器，或者从HP服务器的iLo管理界面中，登录ESXi界面。
如果不是hp服务器可以用管理界面进行管理。
或者直接到机房的物理服务器前进行如下操作按F2，登录。
常用的操作就两块，网络和troubleshooting。
其中troubleshooting中的restart management agents选项，用在vcenter无法管理ESXi主机时。
VMware-vSphere-管理员手册-运维人员
虚拟化平台管理员手册目录1.概述41。
1目标读者41.2VMware vSphere 组件42.vSphere 平台管理环境配置错误!未定义书签。
2.1vSphere 平台配置信息错误!未定义书签。
2.2VMFS配置信息错误!未定义书签。
3.ESX配置管理53.1ESXI主机配置管理53。
1。
1用vSphere Client 登录到ESXI主机63.1。
2查看处理器信息73。
1.3添加存储73。
1。
4配置网络73.2许可证管理73.2。
1添加许可证/更换到VMware Center73.2。
2为 ESXI主机分配许可证密钥83.3配置/更改ESXI主机为NTP客户端83。
3.1DNS和路由配置93。
3.2配置管理验证服务93。
4集群配置管理9h40039 9C67 鱧30663 77C7 矇Q23157 5A75 婵X€37891 9403 鐃3.5网络配置管理113。
5.1网络配置113。
5.2添加虚拟交换机113.5.3添加端口组123。
5.4添加上行链路适配器133。
5。
5更改 vSwitch 的端口数143.5.6编辑虚拟交换机的安全策略153。
5。
7编辑虚拟交换机的故障切换和负载平衡策略153.5。
8编辑Management Network的故障切换和负载平衡策略183.5。
9更改上行链路适配器的速度183。
6存储配置管理193.6.1光纤通道存储器193。
6.2存储刷新和重新扫描操作193.6.3重新扫描存储适配器193。
6。
4创建 VMFS 数据存储203。
7ESXI主机管理213.7.1增加ESXI主机213.7。
2删除ESXI主机22l36467 8E73 蹳34766 87CE 蟎w32811 802B 耫31918 7CAE 粮34319 860F 蘏3。
7。
3关闭ESXI主机233。
8虚拟机管理233.8。
1虚拟机转换成模板233.8.2从模板部署虚拟机233.8.3创建虚拟机243。
HP VMware vSphere 5.1 U1 Customized Image 发布说明说明书
HP VMware vSphere5.1U1Customized Image Release Notes for September2013 UpdatesAbstractThis document provides the latest release information for HP VMware vSphere5.1U1Customized Image.HP Part Number:749859-001Published:September2013Edition:9©Copyright2008,2013Hewlett-Packard Development Company,L.P.NoticesThe information contained herein is subject to change without notice.The only warranties for HP products and services are set forth in the express warranty statements accompanying such products and services.Nothing herein should be construed as constituting an additional warranty.HP shall not be liable for technical or editorial errors or omissions contained herein.Confidential computer software.Valid license from HP required for possession,use or copying.Consistent with FAR12.211and12.212,Commercial Computer Software,Computer Software Documentation,and Technical Data for Commercial Items are licensed to the ernment under vendor’s standard commercial license.Microsoft and Windows are U.S.registered trademarks of Microsoft Corporation.Intel is a trademark or registered trademark of Intel Corporation in the U.S.and other countries.AMD is a trademark of Advanced Micro Devices,Inc.Contents1Navigation tips (4)2HP VMware vSphere5.1U1Customized Image (5)3New and updated in this release (6)4Important notes and recommendations (7)Contents31Navigation tipsNavigating to documentation on the HP website•From the URLs in this guide,you may need to make several selections to get to your specific server documentation.•For online access to technical documentation,self-help resources,live chat assistance, community forums of IT experts,technical knowledge base,remote monitoring and diagnostictools,go to /support(/support).•For the latest versions of selected technical documentation,go to/go/bizsupport(/go/bizsupport).4Navigation tips2HP VMware vSphere5.1U1Customized ImageThe HP vSphere5.1U1Customized Image includes the following:•HP Management Tools:◦HP CIM Providers◦HP NMI Driver◦HP iLO Driver◦HP CRU Driver◦HPONCONFG Utility◦HPBOOTCFG Utility◦HPSSACLI Utility◦HPTESTEVENT utility•VMware IOVP Certified Device Drivers added to HP vSphere5.1U1installation images for HP device enablement.•HP Agentless Management Service(AMS)to support Agentless Management and Active Health.•HP CIM Providers and HP Agentless Management Service(AMS)are now available in this version of the HP Customized Image.This version of the HP Customized Image supersedesversion5.60which does not include these products.The version is found in the name of theHP Custom Image download file,for example:VMware-ESXi-5.1.0-Update1-1065491-HP-5.60.40-Sep2013.iso.53New and updated in this releaseThe new and updated features for the HP vSphere5.1U1Customized Image for September2013 include:•Provider Features◦Report Smart array driver name and version.◦Report SAS driver name and version.◦Report SCSI driver name and version◦Report Firmware version of'System Programmable Logic Device'.◦Report SPS/ME firmware.◦Added SCSI HBA Provider.◦Report IdentityInfoType and IdentityInfoValue for PowerControllerFirmware class.◦IPv6support for OA and iLO.◦Report Memory DIMM part number for HP Smart Memory.◦Added new'Test SNMP Trap'.◦Updated reporting of memory configuration to align with iLO and health Driver.•SR-IOV Support◦Updated Emulex10Gb network driver to enable SR-IOV for HP.For additional details on supported servers,Guest Operating Systems,SR-IOV limitations,configuration steps,and troubleshooting,see the HP White Paper–Implementing SR-IOV onHP ProLiant Servers with VMware vSphere5.1.•Utilities features◦HPTESTEVENT–New utility to generate test WBEM indication and test SNMP trap.◦HPSSACLI–New utility to replace hpacucli◦HPONCFG–HPONCFG utility,displays the Server Serial Number along with the Server Name when using hponcfg –g switch,to extract the Host System Information.6New and updated in this release4Important notes and recommendationsThe drivers and firmware recipe information for HP ProLiant servers and options can be found atthe following link:/hpq/recipes.HP CIM Providers and HP Agentless Management Service(AMS)are now available in this version of the HP Customized Image.This version of the HP Customized Image supersedes version5.60which does not include these products.The version is found in the name of the HP Custom Image download file,for example:VMware-ESXi-5.1.0-Update1-1065491-HP-5.60.40-Sep2013.iso.AMS and Active Health InstallationAMS and Active Health is shipped as part of the HP Custom Image,the HP ESXi Offline Bundleand the new Agentless Management Service Offline Bundle.The HP Custom Image and the HPESXi Offline Bundle also include the HP Insight Management WBEM Providers.The AMS OfflineBundle only includes the providers required to support online firmware update and SmartArray,DIMM Status and iLO reporting in vCenter.Customers can manage their ProLiant servers usingAgentless Management without installing the AMS Offline Bundle.Only customers who intend to manage their ProLiant servers using only Agentless Management and do not need the full set ofHP Insight Management WBEM Providers installed should install the AMS Offline Bundle.See the Deploying and updating vSphere5.0on Proliant servers white paper for more information.If the customer has vSphere5.1U1and is currently using HP Insight Management WBEM Providers for ESXi and requires Agentless Management and does not need the full set of providers installed, they need to perform the following step:•Install the AMS Offline Bundle to replace the HP ESXi Offline BundleIf the customer has vSphere5.1U1and is currently using Agentless Management and does nothave the full providers installed and wants to move to using HP Insight Management WBEMProviders for vSphere,they need to perform the following step:•Install the HP vSphere Offline Bundle to replace the AMS Offline Bundle.AMS Fixes•Fix for file logging which generated error in5.1auto deploy with stateful install environment.•Fixed AMS excessive vCenter Logging issue.•Fixed AMS empty and malformed MAC address in cpqNicIfLogMapMACAddress mib.System Memory required for installing vSphere5.1U1Customized ImageVMware vSphere will not install on an HP Gen8server with2GB or less system memory.Although VMware’s stated minimum installation requirement is2GB of system memory,HP’s Gen8platforms do not expose enough of the2GB of system memory to the operating system,causing the installation to fail.This issue is resolved by populating the system with more than2GB of memory.HP Dynamic Smart Array Controllers(B120i and B320i)cannot be used as the target for a coredumpSAS WWIDs for B120i controllers will be non-uniqueVcenter/Vclient not reporting the degraded status for Smart Array disk driveFixed issue where HP Insight Management WBEM Providers were not reporting a degraded status, when the physical drive connected to a Smart Array Controller is pulled out.This resulted VMware vSphere Management Console,Insight Control for vCenter,and other clients of the HP InsightManagement WBEM Providers to report incorrect status when the physical drive is pulled out.Customer Advisory for this issue can be found in the following link:/ bizsupport/TechSupport/Document.jsp?objectID=c03748151&lang=en&cc=us&taskId=101&prodSeriesId=3924066&prodTypeId=329290.7Fixed issue in HPONCFG utility when upgrading the iLO3firmware from1.2x version to1.50and later versions.Varbinds data mismatch in SNMP trapsFixed the issue where HP Insight Management WBEM Providers send SNMP traps with mismatched SNMP trap varbind values.Customer Advisory for this issue can be found in the following link:/ portal/site/hpsc/public/kb/docDisplay/?docId=emr_na-c03835179.Smart Array License version not reportedFixed the issue where HP Insight Management WBEM Providers were not reporting the Smart Array license version.Customer Advisory for this can be found in the following link:/portal/site/hpsc/public/kb/docDisplay/?docId=emr_na-c03893745.Broadcom FCoEThe Broadcom FCoE will not have any HP management support enabled in this release.HPmanagement support will be available in a future release.8Important notes and recommendations。
vmware vstorage方案
介绍VMware vStorage方案是一种用于虚拟化环境下的存储解决方案。
它提供了高性能、高可用性和灵活的存储功能，使得虚拟机对存储资源进行有效的管理和利用。
在本文档中，我们将详细介绍vmware vStorage方案的核心组件、工作原理以及优势。
核心组件1. vSphere存储APIvSphere存储API是VMware vStorage方案的核心组件之一。
它是一组API接口，用于提供对存储系统的访问和管理。
通过这些API，管理员可以对存储资源进行创建、删除、扩容、快照等操作，实现对存储系统的灵活管理。
2. VMware vSANVMware vSAN是vStorage方案的另一个核心组件。
它是一种集成在VMware vSphere环境中的软件定义存储解决方案。
通过将本地服务器的存储资源汇集起来，vSAN可以创建一个分布式存储池，提供高性能和高可用性的存储服务。
3. VMware Storage VMotionVMware Storage VMotion是vStorage方案中的一个重要功能，它可以实现虚拟机的在线存储迁移。
通过Storage VMotion，管理员可以在不影响虚拟机运行的情况下，将其存储位置从一台存储设备迁移到另一台存储设备，提供了对存储资源的灵活调度和管理。
工作原理vStorage方案的工作原理是基于VMware vSphere平台的。
在vSphere平台上，存储资源被抽象为存储容器，即数据存储(Datastore)。
虚拟机可以将其虚拟硬件(磁盘、CD/DVD驱动器等)映射到Datastore上，完成对存储资源的访问。
当虚拟机需要进行存储操作时，如读取文件、写入数据等，vSphere将通过Storage API将操作转发给存储系统。
对于vSAN而言，它将本地服务器上的存储设备汇集起来，创建一个分布式存储池。
vSphere将虚拟机的存储请求发送给vSAN集群，vSAN会根据存储策略和数据副本的设置，将数据分布到不同的节点中，实现数据的高可用性和负载均衡。
双活 vmware 方案
1. 简介双活(vmware)方案是一种数据中心的解决方案，旨在提供高可用性、高性能和高可靠性。
通过使用虚拟化技术，将企业的服务器资源整合到一个统一的平台上，并利用虚拟机的可迁移性和自动化管理，实现数据中心的双活部署，从而提高业务连续性和可恢复性。
2. 方案设计在双活(vmware)方案中，一般需要两个数据中心，分别称为主数据中心和备份数据中心。
主数据中心承担主要的业务负载，并提供实时的服务。
备份数据中心作为冗余备份，保证在主数据中心出现故障时能及时接管业务，并提供持续的服务。
2.1 虚拟化平台选择在双活(vmware)方案中，常用的虚拟化平台是VMware。
VMware是一套成熟的虚拟化解决方案，提供各种功能和工具，支持高可用性、自动化管理和灵活的资源分配。
2.2 主备数据中心架构主备数据中心架构是双活(vmware)方案的核心组成部分。
主备数据中心之间需要建立高速的网络连接，以确保数据的实时同步和服务的快速切换。
主数据中心和备份数据中心之间可以使用多种方式进行数据同步，如异步复制、同步复制和镜像复制等。
2.3 容灾策略容灾策略是保障双活(vmware)方案可用性的关键。
一般可以采取以下措施：•硬件冗余：通过使用双机热备、硬件负载均衡等方式，确保硬件设备的高可用性和冗余性。
•数据复制：主备数据中心之间需要进行持续的数据复制，以保证数据的一致性和可恢复性。
•故障切换：当主数据中心出现故障时，需要在最短时间内将服务切换到备份数据中心，并确保业务的连续性和用户的不中断。
2.4 容灾测试和维护容灾测试和维护是双活(vmware)方案的必要环节，它们可以帮助发现和修复潜在的问题，并提高系统的可靠性。
容灾测试需要定期进行，模拟主数据中心故障和故障切换，以验证备份数据中心的可用性和稳定性。
维护工作包括系统的定期更新、性能监控和故障排除等。
3. 优势和挑战3.1 优势双活(vmware)方案相比传统的单数据中心方案具有以下优势：•高可用性：通过双活部署，即使主数据中心故障，也可以快速切换到备份数据中心，从而保证业务的连续性。
Dell PowerVault MD 系列 VMware vStorage APIs For Sto
Dell PowerVault MD Series VMware vStorage APIs For Storage Awareness (VASA) 提供程序用户指南（Web 客户端）管制型号： E16S Series管制类型： E16S001注、小心和警告注: “注”表示可以帮助您更好地使用计算机的重要信息。
小心: “小心”表示可能会损坏硬件或导致数据丢失，并说明如何避免此类问题。
警告: “警告”表示可能会造成财产损失、人身伤害甚至死亡。
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2015 - 09Rev. A01目录1 概览 (4)VASA 存储功能 (4)配置文件驱动的存储和基于策略的存储 (5)存储服务级别协议 (6)存储分布式资源调度程序 (6)VASA 会话通信 (6)2 安装 VASA 提供程序 (7)安装之前 (7)支持的操作系统和平台 (7)所需的 VMware 应用程序平台 (7)支持的 MD 系列存储阵列 (7)所需的 RAID 控制器模块固件 (7)下载 VASA 提供程序 (7)安装 VASA 提供程序 (8)卸载 VASA 提供程序 (8)3 使用 VASA 提供程序 (9)将存储阵列置于 VASA 管理之下 (10)将存储阵列添加至 VASA 控制 (10)在 vSphere Web 客户端中注册 VASA 提供程序 (10)验证 VASA 注册 (12)使用存储配置文件 (12)将 VM 存储配置文件分配至现有 VM (14)检查存储配置文件符合性 (14)存储阵列事件和警报 (14)故障排除提示 (15)日志故障排除 (15)配置重设 (15)4 获得帮助 (16)说明文件列表 (16)Dell 说明文件 (16)VMware 说明文件 (16)联系 Dell (16)找到您的系统服务标签 (17)31概览VMware vStorage APIs for Storage Awareness (VASA) 是应用程序编程接口 (API) 集，支持 Dell PowerVault MD 系列 iSCSI 和光纤信道存储阵列。
VMware vSphere 41虚拟化学习手册9：vMotion及Storage vMotion配
VMware vSphere 4.1虚拟化学习手册9：vMotion及Storage vMotion配置vMotion及Storage vMotion介绍VMotion：在线迁移运行中的虚拟机，以改变其主机位置，最大的特性是"整个迁移过程虚拟机应用不会中断”，也就是说在虚拟机不停机的情况下将一台虚拟机从一个esx服务器上迁移到另外一台服务器上，这样可以非常方便的在不影响业务的前提下对esx主机进行维护。
Storage VMotion：这个是VMware 在ESX 3.5及之后版本推出的一项针对存储迁移的功能，就是在虚拟机开机状态下改变其存储位置，和VMotion一样，整个迁移过程对用户透明，应用不会中断。
vMotion及Storage vMotion的配置条件要实现VMotion功能需要满足下面的一些条件：vCenter要求：vMotion迁移的源和目标ESX主机必须处于同一个vCenter下的同一个”数据中心“下，VMotion不可以跨”数据中心“迁移；（跨”数据中心“可以迁移关机状态下的虚拟机，这个过程不叫VMotion）CPU要求：对于迁移开机状态下的虚拟机，VMotion要求源和目标ESX主机的CPU型号一定要兼容，当然最好是同一型号的CPU；如果因为各种原因无法保证CPU型号的完全一样，那起码要同一系列或同一厂商的CPU（Intel和AMD之间是无法在线迁移的）。
网络要求：1、VMotion需要专用的VMkernel网络来迁移虚拟机，所以需要在各ESX主机上为VMotion配置专用网络，并且考量到性能，最好为VMotion网络绑定专用网卡，具体参考[VMware vSphere 4.1虚拟化学习手册5：虚拟交换机vSwitch]2、VMotion要求网络带宽至少为千兆，所以百兆带宽是不可以的（硬性限制）;3、VMotion要求源和目标主机具有相同的网络配置，包括网络类型和网络标签都要一致;存储要求：vMotion要求虚拟机一定要位于共享存储上，并且源和目标ESX主机都能访问到此共享存储；支持的共享存储包括FC SAN、iSCSI SAN、NFS NAS。
vSphere维护及使用说明书 (ubuntu硬盘挂载等)
VSphere维护及使用说明书编制：校对：审核：批准：二〇一七年九月VSpher维护及说明书文档修订记录vcenter维护及使用手册目录1登陆 (1)2新建虚拟机 (1)3安装操作系统 (9)4磁盘不足，添加硬盘 (11)1 登陆运行VMware vSphere Client，输入登录信息:IP地址/名称、用户名以及密码，确认无误后点击登陆按钮，如图1-1所示。
图1-1登陆界面2 新建虚拟机1、右键主机，在弹出菜单中选择“新建虚拟机”，如下图2、在弹出的“创建新的虚拟机”窗口中，根据情况选择，此示例选择“自定义，后点击下一步3、输入虚拟机名称后点击下一步4、设置存储，此处选择容量较大的存储，点击下一步虚拟机版本默认选中，点击下一步5、客户机操作系统选择。
根据要求自行选择后下一步6、CUP配置。
根据情况选择后下一步7、内存设置，根据情况设置后下一步9、磁盘选择，选择“创建新的虚拟磁盘后点击下一步设置磁盘大小，后面一直下一步，最后点击完成3 安装操作系统操作系统的安装主要就是上传操作系统文件以及具体的系统安装。
1、打开数据存储。
在配置中选择一个数据存储，右键浏览2、新建一个文件夹ios，用来存放上传的文件。
3、上传文件。
选择ios文件夹，点击上载按钮，选择上载文件4、编辑虚拟机，设置CD/DVD驱动器，选择上传的系统文件，最后点击确定按钮。
5、运行虚拟机，便可进入操作系统的安装。
操作系统多种多样，此处就不再举例，如有需要可在网上查找操作系统安装教程。
4 磁盘不足，添加硬盘为虚拟机添加硬盘分两大步骤，第一步为编辑虚拟机，添加硬盘，此时添加的硬盘并未真正生效，需要挂载；第二步为挂载硬盘。
第一步:编辑虚拟机，添加硬盘。
1、选择要操作的虚拟机，编辑虚拟机，在弹出窗口中点击“添加”按钮，在弹出的窗口中选择“硬盘”，点击下一步2、选择“创建新的虚拟磁盘”，点击下一步。
3、根据需要设置磁盘大小，并选择“厚置备置零”选项，点击下一步4、继续下一步，最后点击完成按钮。
Hitachi Virtual Storage Platform G200, G400, G600,
Command Control InterfaceCommand ReferenceHitachi Virtual Storage Platform G200, G400, G600, G800Hitachi Virtual Storage Platform F400, F600, F800Hitachi Virtual Storage Platform G1000Hitachi Unified Storage VMHitachi Virtual Storage PlatformHitachi Universal Storage Platform V/VMMK-90RD7009-27May 2016© 2010, 2016 Hitachi, Ltd. All rights reserved.No part of this publication may be reproduced or transmitted in any form or by any means,electronic or mechanical, including copying and recording, or stored in a database or retrievalsystem for any purpose without the express written permission of Hitachi, Ltd., or Hitachi DataSystems Corporation (collectively “Hitachi”). Licensee may make copies of the Materials provided that any such copy is: (i) created as an essential step in utilization of the Software as licensed and is used in no other manner; or (ii) used for archival purposes. Licensee may not make any othercopies of the Materials. “Materials” mean text, data, photographs, graphics, audio, video anddocuments.Hitachi reserves the right to make changes to this Material at any time without notice and assumes no responsibility for its use. The Materials contain the most current information available at the time of publication.Some of the features described in the Materials might not be currently available. Refer to the most recent product announcement for information about feature and product availability, or contactHitachi Data Systems Corporation at https:///en_us/contact-us.html.Notice: Hitachi products and services can be ordered only under the terms and conditions of the applicable Hitachi Data Systems Corporation agreements. The use of Hitachi products is governed by the terms of your agreements with Hitachi Data Systems Corporation.By using this software, you agree that you are responsible for:1) Acquiring the relevant consents as may be required under local privacy laws or otherwise fromauthorized employees and other individuals to access relevant data; and2) Verifying that data continues to be held, retrieved, deleted, or otherwise processed in accordancewith relevant laws.Notice on Export Controls. The technical data and technology inherent in this Document may be subject to U.S. export control laws, including the U.S. Export Administration Act and its associated regulations, and may be subject to export or import regulations in other countries. Reader agrees to comply strictly with all such regulations and acknowledges that Reader has the responsibility toobtain licenses to export, re-export, or import the Document and any Compliant Products.Hitachi is a registered trademark of Hitachi, Ltd., in the United States and other countries.AIX, AS/400e, DB2, Domino, DS6000, DS8000, Enterprise Storage Server, eServer, FICON,FlashCopy, IBM, Lotus, MVS, OS/390, PowerPC, RS/6000, S/390, System z9, System z10, Tivoli, z/OS, z9, z10, z13, z/VM, and z/VSE are registered trademarks or trademarks of InternationalBusiness Machines Corporation.Active Directory, ActiveX, Bing, Excel, Hyper-V, Internet Explorer, the Internet Explorer logo,Microsoft, the Microsoft Corporate Logo, MS-DOS, Outlook, PowerPoint, SharePoint, Silverlight,SmartScreen, SQL Server, Visual Basic, Visual C++, Visual Studio, Windows, the Windows logo,Windows Azure, Windows PowerShell, Windows Server, the Windows start button, and WindowsVista are registered trademarks or trademarks of Microsoft Corporation. Microsoft product screen shots are reprinted with permission from Microsoft Corporation.All other trademarks, service marks, and company names in this document or website areproperties of their respective owners.iiCommand Control Interface Command ReferenceContents Preface (xix)Intended audience (xx)Product version (xx)Release notes (xx)Changes in this revision (xx)Referenced documents (xxi)Document conventions (xxii)Convention for storage capacity values (xxiv)Accessing product documentation (xxv)Getting help (xxv)Comments (xxv)1 Overview of commands.........................................................................1-1 Summary of commands...........................................................................................1-2 Data management commands...........................................................................1-2 Configuration setting commands........................................................................1-4 Subcommands................................................................................................1-10 Command tools..............................................................................................1-11 Typographic conventions for command format........................................................1-11 Differences between CCI and Device Manager - Storage Navigator...........................1-12 Supported characters......................................................................................1-12 Maximum number of characters.......................................................................1-15 Operational differences...................................................................................1-162 Data management commands...............................................................2-1 paircreate...............................................................................................................2-3 Syntax.............................................................................................................2-4 Options and parameters....................................................................................2-4 Returned values..............................................................................................2-10 Error codes....................................................................................................2-10 Examples.......................................................................................................2-11 pairsplit................................................................................................................2-13 Syntax...........................................................................................................2-14 Options and parameters..................................................................................2-14 Returned values..............................................................................................2-18iiiCommand Control Interface Command ReferenceError codes....................................................................................................2-19 Examples.......................................................................................................2-20 pairresync............................................................................................................2-20 Syntax...........................................................................................................2-22 Options and parameters..................................................................................2-23 Returned values..............................................................................................2-27 Error codes....................................................................................................2-27 Examples.......................................................................................................2-28 pairevtwait...........................................................................................................2-29 Syntax...........................................................................................................2-30 Options and parameters..................................................................................2-30 Returned values..............................................................................................2-32 Error codes....................................................................................................2-32 Examples.......................................................................................................2-34 pairmon...............................................................................................................2-35 Syntax...........................................................................................................2-36 Options and parameters..................................................................................2-36 Examples.......................................................................................................2-36 pairvolchk.............................................................................................................2-38 Syntax...........................................................................................................2-38 Options and parameters..................................................................................2-38 Returned values..............................................................................................2-39 Error codes....................................................................................................2-41 Examples.......................................................................................................2-41 pairdisplay............................................................................................................2-45 Syntax...........................................................................................................2-46 Options and parameters..................................................................................2-46 Returned values..............................................................................................2-51 Error codes....................................................................................................2-51 Examples.......................................................................................................2-51 paircurchk (for TrueCopy/global-active device)........................................................2-54 Syntax...........................................................................................................2-55 Options and parameters..................................................................................2-56 Returned values..............................................................................................2-56 Error codes....................................................................................................2-57 Examples.......................................................................................................2-57 pairsyncwait.........................................................................................................2-57 Syntax...........................................................................................................2-58 Options and parameters..................................................................................2-59 Returned values..............................................................................................2-60 Error codes....................................................................................................2-61 Examples.......................................................................................................2-61 horctakeover........................................................................................................2-62 Syntax...........................................................................................................2-62 Options and parameters..................................................................................2-62 Returned values..............................................................................................2-63 Error codes....................................................................................................2-64 raidscan...............................................................................................................2-65 Syntax...........................................................................................................2-65 Options and parameters..................................................................................2-65 Returned values..............................................................................................2-70 Error codes....................................................................................................2-70ivCommand Control Interface Command ReferenceExamples.......................................................................................................2-70 raidar...................................................................................................................2-71 Syntax...........................................................................................................2-72 Options and parameters..................................................................................2-72 Returned values..............................................................................................2-73 Error codes....................................................................................................2-73 Examples.......................................................................................................2-73 raidqry.................................................................................................................2-73 Syntax...........................................................................................................2-73 Options and parameters..................................................................................2-73 Returned values..............................................................................................2-74 Error codes....................................................................................................2-74 Examples.......................................................................................................2-74 raidvchkset...........................................................................................................2-76 Syntax...........................................................................................................2-76 Options and parameters..................................................................................2-76 Returned values..............................................................................................2-78 Error codes....................................................................................................2-78 Examples.......................................................................................................2-79 raidvchkdsp..........................................................................................................2-79 Syntax...........................................................................................................2-79 Options and parameters..................................................................................2-80 Returned values..............................................................................................2-82 Error codes....................................................................................................2-82 Examples.......................................................................................................2-82 raidvchkscan.........................................................................................................2-86 Syntax...........................................................................................................2-86 Options and parameters..................................................................................2-87 Returned values..............................................................................................2-88 Error codes....................................................................................................2-88 Examples.......................................................................................................2-88 raidvchkscan for Universal Replicator......................................................................2-92 Syntax...........................................................................................................2-92 Options and parameters..................................................................................2-92 Returned values..............................................................................................2-93 Error codes....................................................................................................2-93 Examples.......................................................................................................2-93 raidvchkscan for Thin Image, Copy-on-Write Snapshot, and HDP Pools.....................2-96 Syntax...........................................................................................................2-96 Options and parameters..................................................................................2-96 Returned values..............................................................................................2-97 Error codes....................................................................................................2-97 Examples.......................................................................................................2-97 horcmstart............................................................................................................2-99 Syntax...........................................................................................................2-99 Options and parameters..................................................................................2-99 horcmshutdown..................................................................................................2-100 Syntax.........................................................................................................2-100 Options and parameters................................................................................2-101 horcctl................................................................................................................2-101 Syntax.........................................................................................................2-101 Options and parameters................................................................................2-101vCommand Control Interface Command Referencehorctakeoff.........................................................................................................2-103 Syntax.........................................................................................................2-103 Options and parameters................................................................................2-103 Returned values............................................................................................2-104 Error codes...................................................................................................2-105 Examples......................................................................................................2-1053 Subcommands......................................................................................3-1 Windows subcommands..........................................................................................3-2 findcmddev......................................................................................................3-2 Syntax....................................................................................................3-2Argument...............................................................................................3-2Example.................................................................................................3-2 drivescan.........................................................................................................3-3 Syntax....................................................................................................3-3Argument...............................................................................................3-3Example.................................................................................................3-3 portscan..........................................................................................................3-4 Syntax....................................................................................................3-4Argument...............................................................................................3-4Example.................................................................................................3-4 sync, syncd......................................................................................................3-5 Syntax....................................................................................................3-5Arguments..............................................................................................3-5Examples................................................................................................3-6 mount..............................................................................................................3-7 Syntax....................................................................................................3-7Arguments..............................................................................................3-7Example.................................................................................................3-8 umount, umountd.............................................................................................3-8 Syntax....................................................................................................3-9Argument...............................................................................................3-9Example.................................................................................................3-9 Environment variable subcommands.......................................................................3-10 Syntax...........................................................................................................3-10 Arguments.....................................................................................................3-11 Example.........................................................................................................3-114 Command tools....................................................................................4-1 inqraid...................................................................................................................4-2 Syntax.............................................................................................................4-2 Options and parameters....................................................................................4-2 Examples.........................................................................................................4-7 mkconf.................................................................................................................4-13 Syntax...........................................................................................................4-13 Options and parameters..................................................................................4-13 Examples.......................................................................................................4-13 rmawk..................................................................................................................4-15 Syntax...........................................................................................................4-16 Options and parameters..................................................................................4-16 Returned values..............................................................................................4-19viCommand Control Interface Command ReferenceExamples.......................................................................................................4-19 5 Configuration setting commands............................................................5-1 raidcom..................................................................................................................5-8 Syntax.............................................................................................................5-8 Options and parameters....................................................................................5-8 Examples.........................................................................................................5-9 Returned values..............................................................................................5-10 Method for specifying LDEV number.................................................................5-10 Methods for specifying multiple LDEVs.............................................................5-10 Operations where multiple LDEVs can be specified............................................5-11 Specifying and displaying the VSP G1000 serial number.....................................5-12 Resource group operation...............................................................................5-12 Resource lock operation..................................................................................5-13 Resource locking and CCI commands...............................................................5-13 Ranges of command parameters for storage system types.................................5-20 raidcom get clpr....................................................................................................5-20 Syntax...........................................................................................................5-20 Options and parameters..................................................................................5-21 Examples.......................................................................................................5-21 raidcom modify clpr...............................................................................................5-21 Syntax...........................................................................................................5-21 Options and parameters..................................................................................5-21 Examples.......................................................................................................5-22 raidcom get command_status................................................................................5-22 Syntax...........................................................................................................5-22 Options and parameters..................................................................................5-22 Examples.......................................................................................................5-23 raidcom reset command_status..............................................................................5-23 Syntax...........................................................................................................5-23 Options and parameters..................................................................................5-23 Examples.......................................................................................................5-23 raidcom add copy_grp...........................................................................................5-24 Syntax...........................................................................................................5-24 Options and parameters..................................................................................5-24 Example.........................................................................................................5-24 raidcom delete copy_grp.......................................................................................5-24 Syntax...........................................................................................................5-24 Options and parameters..................................................................................5-24 Example.........................................................................................................5-25 raidcom get copy_grp............................................................................................5-25 Syntax...........................................................................................................5-25 Options and parameters..................................................................................5-25 Examples.......................................................................................................5-25 raidcom add device_grp........................................................................................5-25 Syntax...........................................................................................................5-25 Options and parameters..................................................................................5-26 Example.........................................................................................................5-26 raidcom delete device_grp.....................................................................................5-26 Syntax...........................................................................................................5-26 Options and parameters..................................................................................5-26 Example.........................................................................................................5-27viiCommand Control Interface Command Reference。
VMware SD-WAN 和 Netskope 集成指南说明书
VMware SD-WAN 和 Netskope 集成指南VMware SD-WAN您可以从 VMware 网站下载最新的技术文档：https:///cn/。
VMware, Inc.3401 Hillview Ave. Palo Alto, CA 94304 威睿信息技术（中国）有限公司北京办公室北京市朝阳区新源南路 8 号启皓北京东塔 8 层 801/cn上海办公室上海市淮海中路 333 号瑞安大厦 804-809 室/cn广州办公室广州市天河路 385 号太古汇一座 3502 室/cn版权所有© 2021 VMware, Inc. 保留所有权利。
版权和商标信息VMware SD-WAN 和 Netskope 集成指南目录1VMware SD-WAN 和 Netskope 集成指南4 SD-WAN 和 Netskope 集成概览4系统要求5配置从 SD-WAN 网关到 Netskope POP 的 IPsec6在 Netskope 门户上配置 VPN 凭据6配置通过网关的非 SD-WAN 目标8为通过网关的非 SD-WAN 目标设置配置文件12为非 SD-WAN 目标创建业务策略13监控通过网关的非 SD-WAN 目标15测试和验证安全策略16VMware SD-WAN 和 Netskope 集成指南1《VMware SD-WAN™和 Netskope 集成指南》介绍了将 Netskope 下一代安全 Web 网关与 VMware SD-WAN Orchestrator 集成所需的配置。
本章讨论了以下主题：n SD-WAN 和 Netskope 集成概览n系统要求n配置从 SD-WAN 网关到 Netskope POP 的 IPsecn配置通过网关的非 SD-WAN 目标n测试和验证安全策略SD-WAN 和 Netskope 集成概览VMware SD-WAN 与 Netskope 下一代安全 Web 网关 (Secure Web Gateway, SWG) 集成在一起，以便为组织提供基于云的全面安全性以及优化的连接。
vmwa备份机制
vmwa备份机制VMware备份机制是指为了保护虚拟化环境中的虚拟机和相关数据而采取的安全备份措施。
VMware是一种流行的虚拟化技术，许多企业都在其基础设施中使用VMware来运行和管理虚拟机。
以下将介绍VMware备份机制的相关内容。
1. 传统备份和复制方法传统备份方法是将虚拟机数据复制到外部介质，如磁带或硬盘。
这种方法可以保证数据的完整性，但恢复速度较慢。
此外，由于虚拟机数据通常很大，传统备份方法需要大量的存储空间。
虚拟机复制是一种将虚拟机完整地复制到另一个存储位置的方法。
这种方法可以实现较快的恢复速度，但会消耗大量的存储空间，并且在复制过程中会产生数据冗余。
2. 增量备份VMware备份机制中的增量备份是一种有效的备份方法。
增量备份只备份发生了变化的数据，而不是整个虚拟机。
这样可以大大减少备份所需的存储空间和备份时间。
增量备份使用虚拟机的快照技术来实现，通过比较当前状态和先前状态的差异来确定需要备份的数据。
3. 虚拟机保护组VMware备份机制中的虚拟机保护组是一种将一组虚拟机联合在一起进行备份和恢复的方法。
通过创建保护组，用户可以同时备份和恢复多个虚拟机，从而提高效率。
虚拟机保护组还可以用于创建一致性备份，保证备份数据的一致性。
4. 存储快照VMware备份机制中的存储快照是一种创建虚拟机快照的方法。
存储快照可以在备份之前创建，并在备份完成后删除。
这样可以保护虚拟机数据的一致性，并且在恢复时可以方便地返回到之前的状态。
5. 虚拟机备份软件VMware备份机制需要使用专业的虚拟机备份软件来实现。
这些软件提供了各种功能，如自动调度备份任务、增量备份、一致性备份等。
常用的虚拟机备份软件包括Veeam Backup & Replication、Commvault、Veritas NetBackup等。
总结：VMware备份机制采用了多种方法来保护虚拟机和相关数据，例如传统备份和复制方法、增量备份、虚拟机保护组、存储快照等。
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Increased Storage y
One big challenge facing many IT managers is to increase the level of resource utilization needed to run the datacenter. Specifically, the amount of wasted storage resources can be greatly reduced with the use of thin provisioning, wherein storage waste measures the amount of allocated storage that is not used. This ratio is also referred to as the storage disk utilization rate. In most datacenters this number is often well below 50 percent utilization. To address this issue, many storage vendors have released support for thin provisioning in their storage arrays. Another means to increase storage efficiency is to reduce the CPU overhead it takes to drive an I/O between a server and the storage. Reductions in this overhead can greatly increase the throughput of a given system. Virtual Disk Thin Provisioning VMware vSphere introduces full support for the option to create thin provisioned virtual disks when deploying or migrating Virtual Machines. vCenter has also been updated with new management screens and capabilities such as raising alerts, alarms and improved datastore utilization reports, to enable management of over provisioned datastores. Virtual disk thin provisioning increases the efficiency of storage utilization for virtualization environments by using only the amount of underlying storage resources needed for that virtual disk. Upon initial allocation of the virtual disk, the storage requirements will be given 1 MB of space in the datastore. As that space is filled, additional 1 MB chunks of storage will be allocated for the virtual disk so that the underlying storage demand will grow as its size increases. This capability is best understood when compared to a common practice in the airline industry: overbooking of flights. Airlines found that many people who made reservations did not show up for their flights. Therefore the airlines began to book more passengers than they had seats available on the flight. In the storage industry, a request for disks larger than what is needed for the application creates a similar problem. Thin provisioning of storage allows an administrator to over allocate the amount of storage resources currently available. Similar to how airlines carefully optimize the use of seats on their flights, storage administrators can also increase the utilization rates, and reduce the cost of their storage resources by over allocating them and adding more when the demand usage grows to meet the allocation.
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VMware white paper
What Is New in VMware vSphere™ 4: Storage
With the launch of vSphere 4, VMware introduces a new version of the hypervisor, ESX™ 4.0 and the management interface, vCenter. Some key benefits offered by this release are greater resource efficiency, management control and freedom of choice for virtual datacenter storage resources and connectivity options. VMware has added many new storage management capabilities that increase disk utilization rate, provide greater control of these storage resources and enable increased options for datastore protocol support and format of virtual disk format. These storage features provide new levels of flexibility and improved management agility for virtualization environments that run vSphere. This document provides information about the following storage enhancements in vSphere sorted under the following categories: Efficiency • Virtual Disk Thin Provisioning • Improved iSCSI Software Initiator Efficiency Control • New vCenter Storage Capabilities • Dynamic Expansion of VMFS Volumes Choice • Enhanced Storage VMotion • Pluggable Storage Architecture • PV SCSI and Direct Path I/O
WH IT E
PAPER
What Is New in VMware vSphere™ 4: Storage
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VMware white paper
What Is New in VMware vSphere™ 4: Storage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 Increased Storage Efficiency . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 Virtual Disk Thin Provisioning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 Improved iSCSI Software Initiator Efficiency . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 Improved Storage Resources Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 New vCenter Storage Capabilities . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 Dynamic Expansion of VMFS Volumes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 More Storage Resources Choices . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 Enhanced Storage Vmotion . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 Pluggable Storage Architecture (PSA) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 vStorage APIs for Data Protection. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 Paravirtualized SCSI . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 VMDirectPath I/O for Storage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 Conclusion . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9