(转)更换镜像rootvg卷组中的硬盘

F85系统镜像盘更换实录之一：删除原有镜像操作

# cfgmgr

# lsdev -Cc disk

hdisk0 Available 11-09-00-8,0  16 Bit LVD SCSI Disk Drive

hdisk1 Available 11-09-00-10,0 16 Bit LVD SCSI Disk Drive

# lsvg

rootvg

# lsvg -p rootvg

rootvg:

PV_NAME           PV STATE          TOTAL PPs   FREE PPs    FREE DISTRIBUTION

hdisk1            active            542         148         70..00..00..00..78

hdisk0            missing           542         148         70..00..00..00..78

# unmirrorvg rootvg hdisk0

0516-1246 rmlvcopy: If hd5 is the boot logical volume, please run 'chpv -c <diskname>'

as root user to clear the boot record and avoid a potential boot

off an old boot image that may reside on the disk from which this

logical volume is moved/removed.

0516-1132 unmirrorvg: Quorum requirement turned on, reboot system for this

to take effect for rootvg.

0516-1144 unmirrorvg: rootvg successfully unmirrored, user should perform

bosboot of system to reinitialize boot records.  Then, user must modify

bootlist to just include:  hdisk1.

# lsvg -p rootvg

rootvg:

PV_NAME           PV STATE          TOTAL PPs   FREE PPs    FREE DISTRIBUTION

hdisk1            active            542         148         70..00..00..00..78

hdisk0            missing           542         542         109..108..108..108..109

# chpv -c hdisk0

# reducevg rootvg hdisk0

# lsvg -p rootvg

rootvg:

PV_NAME           PV STATE          TOTAL PPs   FREE PPs    FREE DISTRIBUTION

hdisk1            active            542         148         70..00..00..00..78

# bootlist -m normal hdisk1

F85系统镜像盘更换实录之二：重建镜像

lsdev -Cc disk

hdisk0 Available 11-09-00-8,0  16 Bit LVD SCSI Disk Drive

hdisk1 Available 11-09-00-10,0 16 Bit LVD SCSI Disk Drive

# lsvg -p rootvg

rootvg:

PV_NAME           PV STATE          TOTAL PPs   FREE PPs    FREE DISTRIBUTION

hdisk1            active            542         148         70..00..00..00..78

# chdev -l hdisk0 -a pv=yes

hdisk0 changed

# extendvg rootvg hdisk0

0516-1398 extendvg: The physical volume hdisk0, appears to belong to

another volume group. Use the force option to add this physical volume

to a volume group.

0516-792 extendvg: Unable to extend volume group.

# extendvg -f rootvg hdisk0

# lsvg -p rootvg

rootvg:

PV_NAME           PV STATE          TOTAL PPs   FREE PPs    FREE DISTRIBUTION

hdisk1            active            542         148         70..00..00..00..78

hdisk0            active            542         542         109..108..108..108..109

关掉rootvg的 QUORUM功能: (是否需要这个步骤)

#chvg -Qn rootvg

# mirrorvg rootvg

0516-1124 mirrorvg: Quorum requirement turned off, reboot system for this

to take effect for rootvg.

0516-1126 mirrorvg: rootvg successfully mirrored, user should perform

bosboot of system to initialize boot records.  Then, user must modify

bootlist to include:  hdisk0 hdisk1.

# bosboot -a -d /dev/hdisk0

bosboot: Boot image is 20904 512 byte blocks.

# bootlist -m normal hdisk1 hdisk0

# lsvg -p rootvg

rootvg:

PV_NAME           PV STATE          TOTAL PPs   FREE PPs    FREE DISTRIBUTION

hdisk1            active            542         148         70..00..00..00..78

hdisk0            active            542         148         76..12..00..00..60

# exit

F85系统镜像盘更换实录之三：现场诊断及修复过程

1,登陆到F85主机，仔细查看错误日志，确认系统镜像盘hdisk0的故障：

# errpt

IDENTIFIER TIMESTAMP  T C RESOURCE_NAME  DESCRIPTION

2F3E09A4   0801151907 I H hdisk0         REPAIR ACTION

16F35C72   0801083807 P H hdisk0         DISK OPERATION ERROR

16F35C72   0801003807 P H hdisk0         DISK OPERATION ERROR

16F35C72   0731163807 P H hdisk0         DISK OPERATION ERROR

16F35C72   0731083807 P H hdisk0         DISK OPERATION ERROR

B6048838   0731051907 P S SYSPROC        SOFTWARE PROGRAM ABNORMALLY TERMINATED

B6048838   0731043107 P S SYSPROC        SOFTWARE PROGRAM ABNORMALLY TERMINATED

B6048838   0731041907 P S SYSPROC        SOFTWARE PROGRAM ABNORMALLY TERMINATED

16F35C72   0731003807 P H hdisk0         DISK OPERATION ERROR

16F35C72   0730163807 P H hdisk0         DISK OPERATION ERROR

16F35C72   0730083807 P H hdisk0         DISK OPERATION ERROR

16F35C72   0730003807 P H hdisk0         DISK OPERATION ERROR

16F35C72   0729163807 P H hdisk0         DISK OPERATION ERROR

16F35C72   0729083807 P H hdisk0         DISK OPERATION ERROR

16F35C72   0729003807 P H hdisk0         DISK OPERATION ERROR

16F35C72   0728163807 P H hdisk0         DISK OPERATION ERROR

16F35C72   0728083807 P H hdisk0         DISK OPERATION ERROR

16F35C72   0728003807 P H hdisk0         DISK OPERATION ERROR

16F35C72   0727163807 P H hdisk0         DISK OPERATION ERROR

2,打开机器前面板，根据硬盘使用繁忙程度(比较两块硬盘指示灯闪烁情况)初步判断系统镜像盘位于前面板右下侧硬盘笼子中的一号插槽，三号插槽中为hdisk1；

3,为进一步确保判断的准确性，请客户停掉主机上的应用、关闭数据库、关闭系统。待所有操作完成，打开硬盘笼子挡板，手工拔去一号插槽中的硬盘，重新启动到系统，“lsdev –Cc disk”观察hdisk0和hdisk1的状态，hdisk0由上次的“available”变为“defined”，hdisk1没有变化，则说明位于硬盘笼一号插槽中确为hdisk0；

4,根据服务手册，硬盘笼中硬盘可热插拔。在主机运行的情况下将拔出的硬盘插入一号插槽，合上硬盘笼挡板；

5,通过命令“cfgmgr”重新识别到hdisk0，“lsdev –Cc disk”查看hdisk0状态转为“available”，但在“lsvg –p rootvg”中查看物理盘hdisk0的状态为“missing”而非“active”，表示仍然有问题；

6,对hdisk0进行删除镜像操作:

# unmirrorvg rootvg hdisk0(取消hdisk0对rootvg的镜像)

# chpv -c hdisk0(清除引导区)

# reducevg rootvg hdisk0(将hdisk0从卷组中清除)

# bootlist -m normal hdisk1(重设启动顺序)

7,“lsvg –p rootvg”观察，确认hdisk0已经脱离rootvg，打开硬盘笼挡板，拔出一号槽中的hdisk0，并将新带来的36G硬盘插入到一号槽中，合上硬盘笼挡板。“cfgmgr”重新扫描硬件设备，“lsdev –Cc disk”查看新加硬盘在系统中显示为“hdisk0”，且状态为“available”，表示此硬盘可用；

8,对hdisk0进行镜像操作:

# chdev -l hdisk0 -a pv=yes(将新硬盘设为可用)

# extendvg rootvg hdisk0(将hdisk0加入rootvg)

# mirrorvg rootvg(对rootvg进行镜像,约二十分钟后镜像成功)

# bosboot -a -d /dev/hdisk0(在hdisk0上创建启动映象)

# bootlist -m normal hdisk1 hdisk0(重新设置启动顺序)

9,通过命令“lsvg –p rootvg”查看确认hdisk0已经包含在rootvg中并处于“active”状态,且使用pp数相同(一个pp等于64M):

# lsvg -p rootvg

rootvg:

PV_NAME           PV STATE          TOTAL PPs   FREE PPs    FREE DISTRIBUTION

hdisk1            active            542         148         70..00..00..00..78

hdisk0            active            542         148         76..12..00..00..60

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替换rootvg中的磁盘

rootvg 中原来mirror的是 hdisk0 和 hdisk1，由于这两块磁盘是同一个BUS上的，我想换另外一个BUS上的磁盘，用hdisk4替换掉hdisk1

root用户执行：

extend rootvg hdisk4

migratepv -l  hd5  hdisk1 hdisk4  # 从hdisk1移到hdisk0

bosboot -ad  /dev/hdisk4

chpv -c  hdisk1

bootlist -m  nornal  hdisk0 hdisk4

sysdumpdev -p /dev/sysdumpnull

migratepv hdisk1 hdisk4

sysdumpdev -p /dev/hd6

reducevg rootvg hdisk1

shutdown -Fr