How to mirror the rootvg in AIX?
How to mirror the rootvg in AIX?
This procedure is to assume the rootvg having hdisk0 and we need to take a mirror to hdisk1.
Pre-Work:
Make sure the hdisk0 and the hdisk1 are in the same size. check the size with the #bootinfo -s hdisk1" command
Steps:
This procedure is to assume the rootvg having hdisk0 and we need to take a mirror to hdisk1.
Pre-Work:
Make sure the hdisk0 and the hdisk1 are in the same size. check the size with the #bootinfo -s hdisk1" command
Steps:
1. Add hdisk1 to rootvg:
extendvg rootvg hdisk1
extendvg rootvg hdisk1
2. Mirror rootvg to hdisk1:
mirrorvg rootvg hdisk1 (or smitty mirrorvg)
mirrorvg rootvg hdisk1 (or smitty mirrorvg)
3. Create boot images on hdisk1:
bosboot -ad /dev/hdisk1
bosboot -ad /dev/hdisk1
4. Add hdisk1 to the bootlist:
bootlist -m normal hdisk0
hdisk1
Validation:
Validation:
· Execute the below commands and ensure that the number of PPs is double than
number than LPs.
# 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 105 210 2 open/syncd
N/A
hd8
jfs2log 1
2
2 open/syncd N/A
hd4
jfs2
16
32
2 open/syncd /
hd2
jfs2
40
80
2 open/syncd /usr
hd9var
jfs2 40 80 2
open/syncd /var
hd3
jfs2
40
80
2 open/syncd /tmp
hd1
jfs2
16
32
2 open/syncd /home
hd10opt
jfs2 40 80 2
open/syncd /opt
Rollback:
1. Un-Mirror rootvg to hdisk0:
unmirrorvg rootvg hdisk1
2. Reduce the hdisk0 from Rootvg
reducevg rootvg hdisk1
3. delete the bootimage from hdisk1
chpv -c hdisk1
4. Add hdisk0 only to the bootlist:
bootlist -m normal hdisk0
Downtime
details:
· No downtime required.
No comments:
Post a Comment