IBM小型机微码升级详细的升级过程

微码升级详细的升级过程如下：
Special Instructions for Models 9117-570, 9116-561 and 9406-570
下面三个菜单是让你确认设备配置是否给Deconfigured 。

是做升级微码前的准备确认工作。

Model 9117-570, 9116-561 and 9406-570 systems with any level of SF240 installed must be checked for GARDed out nodes, processors and memory before applying a new level of SF240 firmware. Following are instructions to determine if any nodes, processors or memory is GARDed out. If any hardware resource are found to be GARDed, contact your next level of support and have the situation corrected before applying this service pack.
1. Log on to ASM as "admin".
2. Click on the "Expand all menus" link to make all options visible.
3. Navigate down to the options under "System Configuration" followed by "Hardware Deconfiguration".
4. Click on the link "Processor Deconfiguration" to bring up the page that shows the number of processors present and whether or not they are
configured.
5. Click on the link "Memory Deconfiguration" to bring up the page that
shows the total amount of memory present and if any is presently
deconfigured.
6. Click on the link "Processing unit Deconfiguration" to bring up the
page that shows the processing units in the system and if any is
presently deconfigured.
7. Log off.
从IBM官网下载最新的01SF240_338_201版本的微码，文件下载下来是一个rpm包，01SF240_338_201.rpm，FTP 到AIX系统上
找到AIX下微码的目录，进入，在命令行下运行命令：
rpm -Uvh --ignoreos 01SF240_338_201.rpm
微码文件会被解压到/tmp/fwupdate目录下，文件名是01SF240_338_201
到/tmp/fwupdate目录下，运行命令：
/usr/lpp/diagnostics/bin/update_flash -f 01SF240_338_201
系统提示如果要继续更新微码需要重新启动，按下1并回车，机器重新启动并自动进入微码更新进程
在更新过程中液晶面板会有CA2799FD 和CA2799FF 交替显示，更新完毕后系统自动关机，然后启动。

启动后登陆进去，使用命令lsmcode 查看微码版本，你将会看到以下输出：
The current permanent system firmware image is 01SF240_219
The current temporary system firmware image is 01SF240_338
The system is currently booted from the temporary firmware image.
他表示，系统永久微码的版本是01SF240_219，临时微码版本是01SF240_338，系统当前使用临时微码启动
IBM的文档显示，这种情况是正常的，因为刚刚更新过的微码不一定和当前的系统相适应，可能需要换回原来的微码。

这种情况就是为了当更新的微码和系统不适用时，可以还有补救措施。

如果更新过微码后，系统使用了一段时间了，可以认为更新的微码适用于当前系统，那么就可以把临时微码刷新到永久微码了，步骤如下
第一种方法：
在命令行下运行：
/usr/lpp/diagnostics/bin/update_flash -c
这个命令将会把临时微码更新为永久微码，这个过程可能需要10分钟，命令成功完成之后，如果提交的微码版本是SF220，那么需要手动关机，并重新启动机器，如果提交的微码版本是SF222或更高，就不需要关机和重启了。

使用命令#lsmcode查看当前的微码
The current permanent system firmware image is 01SF240_338
The current temporary system firmware image is 01SF240_338
The system is currently booted from the temporary firmware image.
第二种方法：
运行diag诊断程序，选择选项“ Task Selection (Diagnostics, Advanced Diagnostics, Service Aids, etc.)”，并选择“ Microcode Tasks”，之后选择“Update and Manage System Flash”出现如下界面
UPDATE AND MANAGE FLASH
The current permanent system firmware image is SF240_219
The current temporary system firmware image is SF240_338
The system is currently booted from the temporary firmware image.
Move cursor to selection, then press 'Enter'.
Validate and Update System Firmware
Validate System Firmware
Commit the Temporary Image
选择最后一项Commit the Temporary Image，开始更新微码。

注意：此选项不会要求确认，除非你确定要这样做，否则不要选择此项
这个过程将会运行10分钟左右，成功完成之后，如果提交的微码版本是SF220，那么需要手动关机，并重新启动机器，如果提交的微码版本是SF222或更高，就不需要关机和重启了。

使用命令#lsmcode查看当前的微码
The current permanent system firmware image is 01SF240_338
The current temporary system firmware image is 01SF240_338
The system is currently booted from the temporary firmware image.。