LVM Disk Replacement: Difference between revisions
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== Further Reading == | == Further Reading == | ||
# [http://publib.boulder.ibm.com/infocenter/pseries/v5r3/index.jsp IBM pSeries and AIX Information Center] | # [http://publib.boulder.ibm.com/infocenter/pseries/v5r3/index.jsp IBM pSeries and AIX Information Center] | ||
[[Category:AIX]] | |||
[[Category:Linux]] |
Latest revision as of 16:24, 5 January 2012
rootvg
Replacing a Working rootvg Physical Volume
- Install and configure the new physical volume.
- Add the new disk to the volume group.
- # extendvg rootvg <new_hdisk#>
- Does the disk contain hd5 (boot partition)?
- # lslv -m hd5
- No? skip to next step, yes? continue.
- # migratepv -l hd5 <old_hdisk#> <new_hdisk#>
- # bosboot -ad <new_hdisk#>
- # chpv -c <old_hdisk#>
- # bootlist -m normal <new_hdisk#>
- Disable the system dump device.
- # sysdupdev -p /dev/sysdumpnull
- Migrate data from old physical volume to new physical volume.
- # migratepv <old_hdisk#> <new_hdisk#>
- Enable the system dump device.
- # sysdupdev -p /dev/<lv_name>
- Remove the old physical volume from the volume group.
- # reducevg rootvg <old_hdisk#>
- Remove the old physical volume from the system.
Replacing a Mirrored rootvg Physical Volume
- Break the mirror.
- # unmirrorvg rootvg <old_hdisk#>
- Remove the old physical volume from the volume group.
- # reducevg rootvg <old_hdisk#>
- Remove the old physical volume from the system.
- Install and configure the new physical volume.
- Add the new disk to the volume group.
- # extendvg rootvg <new_hdisk#>
- Mirror the volume group.
- # mirrorvg -S -c2 rootvg <new_hdisk#>
- Verify the stale PPs in the volume group are 0.
- # lsvg rootvg | grep STALE
- Add the ipldevice to all of the rootvg physical volumes.
- # bosboot -ad <new_hdisk#>
- # bosboot -ad <current_hdisk#> (this step will have to be repeated for each hdisk containing the ipldevice associated with rootvg.
- Modify the bootlist to include ALL physical volumes
- # bootlist -m normal <new_hdisk# current_hdisk#...>
non-rootvg
Replacing a Working non-rootvg Physical Volume
- Install and configure the new physical volume.
- Add the new physical volume to the volume group.
- # extendvg <vg_name> <new_hdisk#>
- Migrate the logical volumes to the new physical volume.
- # migratepv <old_hdisk#> <new_hdisk#>
- Remove the old physical volume from the volume group.
- # reducevg <vg_name> <old_hdisk#>
- Remove the old physical volume from the system.
Replacing a Mirrored non-rootvg Physical Volume
- Break the mirror.
- # unmirrorvg <vg_name> <old_hdisk#>
- Remove the disk from the volume group.
- # reducevg <vg_name> <old_hdisk#>
- Remove the old physical volume from the system.
- Install and configure the new physical volume.
- Add the new disk to the volume group.
- # extendvg <vg_name> <new_hdisk#>
- Mirror the volume group (syn in background, ensuring a copy on each disk).
- # mirrorvg -S -c2 <vg_name> <new_hdisk#>
- Synchronize the volume group.
- # syncvg -v <vg_name>