AIX rootvg mirror

作环境：IBM P6-550 AIX6100-06-01-1043

1.查看本机配置的磁盘信息

root@node01:/#oslevel -s

6100-06-01-1043

root@node01:/#

root@node01:/#lsdev -Cc disk

hdisk0 Available 00-08-00 SAS Disk Drive

hdisk1 Available 00-08-00 SAS Disk Drive

root@node01:/#lspv

hdisk0 00c50e26222855e1 rootvg active

hdisk1 none None

root@node01:/#

输出显示：当前rootvg下只有一块hdisk0；hdisk1尚未分配pvid号

2.显示当前引导磁盘：

root@node01:/#lslv -m hd5

hd5:N/A

LP PP1 PV1 PP2 PV2 PP3 PV3

0001 0001 hdisk0

root@node01:/#

3. 给hdisk1分配PVID号

root@node01:/#chdev -l hdisk1 -a pv=yes

hdisk1 changed

root@node01:/#

root@node01:/#lspv

hdisk0 00c50e26222855e1 rootvg active

hdisk1 00c50e26ca925667 None

root@node01:/#

4. 将hdisk1加入rootvg

root@node01:/#extendvg rootvg hdisk1

若系统报如下信息，表明hdisk1曾经从属于某个vg，可以使用-f参数将其强制加入vg

root@node01:/#extendvg rootvg hdisk1

0516-1398 extendvg: The physical volume hdisk1, 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.

root@node01:/#extendvg -f rootvg hdisk1

root@node01:/#

5. 执行mirrorvg进行vg镜像，-S参数表示在后台同步数据

root@node01:/#mirrorvg -S -c 2 rootvg hdisk1

0516-1804 chvg: The quorum change takes effect immediately.

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.

root@node01:/#

lsvg -l rootvg查看rootvg下的各lv是否已经完成同步

root@node01:/#lsvg -l rootvg

rootvg:

LV NAME TYPE LPs PPs PVs LV STATE MOUNT POINT

hd5 boot 1 2 2 closed/syncd N/A

hd6 paging 1 2 2 open/syncd N/A

hd8 jfs2log 1 2 2 open/syncd N/A

hd4 jfs2 10 20 2 open/stale /

hd2 jfs2 20 40 2 open/stale /usr

hd9var jfs2 16 32 2 open/stale /var

hd3 jfs2 1 2 2 open/stale /tmp

hd1 jfs2 1 2 2 open/stale /home

hd10opt jfs2 1 2 2 open/stale /opt

hd11admin jfs2 1 2 2 open/stale /admin

fwdump jfs2 3 6 2 open/stale /var/adm/ras/platform

lg_dumplv sysdump 8 8 1 open/syncd N/A

livedump jfs2 1 2 2 open/stale /var/adm/ras/livedump

root@node01:/#

stale状态表示该lv在两个PV上的信息没有同步，等待一段时间后再次执行lsvg -l rootvg查看rootvg状态。

root@node01:/#lsvg -l rootvg

rootvg:

LV NAME TYPE LPs PPs PVs LV STATE MOUNT POINT

hd5 boot 1 2 2 closed/syncd N/A

hd6 paging 1 2 2 open/syncd N/A

hd8 jfs2log 1 2 2 open/syncd N/A

hd4 jfs2 10 20 2 open/syncd /

hd2 jfs2 20 40 2 open/syncd /usr

hd9var jfs2 16 32 2 open/syncd /var

hd3 jfs2 1 2 2 open/syncd /tmp

hd1 jfs2 1 2 2 open/syncd /home

hd10opt jfs2 1 2 2 open/syncd /opt

hd11admin jfs2 1 2 2 open/syncd /admin

fwdump jfs2 3 6 2 open/syncd /var/adm/ras/platform

lg_dumplv sysdump 8 8 1 open/syncd N/A

livedump jfs2 1 2 2 open/syncd /var/adm/ras/livedump

root@node01:/#

所有lv的状态全部都为syncd，表明pv间的数据已经同步完成。

6. 给新盘hdisk1设置引导信息

root@node01:/#bosboot -a -d /dev/hdisk1

bosboot: Boot image is 45143 512 byte blocks.

root@node01:/#

7. 设置系统引导顺序

root@node01:/#bootlist -m normal -o hdisk0 hdisk1 cd0

hdisk0 blv=hd5 pathid=0

hdisk1 blv=hd5 pathid=0

cd0

root@node01:/#

8. 查看、验证引导信息

root@node01:/#lslv -m hd5

hd5:N/A

LP PP1 PV1 PP2 PV2 PP3 PV3

0001 0001 hdisk0 0001 hdisk1

root@node01:/#

root@node01:/#bootlist -m normal -o

hdisk0 blv=hd5 pathid=0

hdisk1 blv=hd5 pathid=0

cd0

root@node01:/#

9. lsvg rootvg验证QUORUM值是否为1（Disable）

root@node01:/#lsvg rootvg

VOLUME GROUP: rootvg VG IDENTIFIER: 00c50e2600004c000000012ec70cfc9f

VG STATE: active PP SIZE: 512 megabyte(s)

VG PERMISSION: read/write TOTAL PPs: 1116 (571392 megabytes)

MAX LVs: 256 FREE PPs: 994 (508928 megabytes)

LVs: 13 USED PPs: 122 (62464 megabytes)

OPEN LVs: 12QUORUM: 1 (Disabled)

TOTAL PVs: 2 VG DESCRIPTORS: 3

STALE PVs: 1 STALE PPs: 33

ACTIVE PVs: 2 AUTO ON: yes

MAX PPs per VG: 32512

MAX PPs per PV: 1016 MAX PVs: 32

LTG size (Dynamic): 1024 kilobyte(s) AUTO SYNC: no

HOT SPARE: no BB POLICY: relocatable

PV RESTRICTION: none

root@node01:/#

10. 建议设置完成后重启下系统

root@node01:/#shutdown –Fr

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