LVM Disk Replacement: Difference between revisions
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== rootvg == | == rootvg == | ||
=== Replacing a working rootvg Physical Volume === | |||
# [[LVM Install a New Physical Volume|Install and configure the new physical volume.]] | |||
# Add the new disk to the volume group. | |||
## <tt>'''# extendvg <vg_name> <new_hdisk#>'''</tt> | |||
# Does the disk contain hd5 (boot partition)? | |||
## <tt>'''# lslv -m hd5'''</tt> | |||
# No? skip to next step, yes? continue. | |||
## <tt>'''# migratepv -l hd5 <old_hdisk#> <new_hdisk#>'''</tt> | |||
## <tt>'''# bosboot -ad <new_hdisk#>'''</tt> | |||
## <tt>'''# chpv -c <old_hdisk#>'''</tt> | |||
## <tt>'''# bootlist -m normal <new_hdisk#>'''</tt> | |||
# Migrate data from old physical volume to new physical volume. | |||
## <tt>'''# migratepv <old_hdisk#> <new_hdisk#>'''</tt> | |||
# Remove the old physical volume from the volume group. | |||
## <tt>'''# reducevg <vg_name> <old_hdisk#>'''</tt> | |||
# [[LVM Remove a Physical Volume|Remove the old physical volume from the system.]] | |||
== non-rootvg == | == non-rootvg == | ||
=== Replacing a working non-rootvg Physical Volume === | === Replacing a working non-rootvg Physical Volume === |
Revision as of 15:46, 4 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 <vg_name> <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#>
- Migrate data from old physical volume to 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.
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>