AIX is good because you cannot remove anything that the OS believes is in use so it protects itself. You can detach them at the SAN end, but that will cause hardware alerts.
Are you relinquishing all IP addresses? Is this part of a cluster perhaps?
I presume you mean that you want to reclaim the disks/LUNs for use on other servers/partitions so:
You cannot remove these safely from AIX without them being removed from the relevant volume group.
You cannot remove them from the volume group unless they are empty (no logical volumes)
You cannot remove the logical volumes if they are in use as either raw devices (such as for a database) or as formatted and mounted filesystems.
You cannot unmount filesystems if they are in use, i.e. open files or any process with their current directory within the tree.
Before going through the process to unwind them, will anything be left of the server at the end of this or is it being turned off? If so, shut it down and use the SAN to detach/dis-associate the LUNs from the client AIX node (or whatever terminology your SAN uses) To reuse the server at a later date, you would be best to re-install over the root volume group so that it doesn't try to use devices that have been removed or use IP addresses that may have been reallocated elsewhere.
If you need to do a partial removal, it would be helpful to know what we're dealing with. Can you share the output (pasted in CODE tags) from the following:-
Code:
oslevel -s
df
lsvg
lsvg -p each volume group in turn
lsvg -l each volume group in turn
lspv
Thanks, in advance,
Robin
Last edited by rbatte1; 01-12-2017 at 10:36 AM..
Reason: Added welcome
I'm trying to mount a USB Lacie external hardrive in my Linux system but am having trouble doing so, I'm also having trouble mounting my USB ZIP 250 drive.
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Hi
I am oracle DBA and sometimes need to see on which disks oracle data files are residing . How can we check that . The file system is jfs on aix 5.2.0.0
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LEARN ABOUT BSD
vgreduce
VGREDUCE(8) System Manager's Manual VGREDUCE(8)NAME
vgreduce - reduce a volume group
SYNOPSIS
vgreduce [-a|--all] [-A|--autobackup y|n] [-d|--debug] [-h|-?|--help] [--removemissing] [-t|--test] [-v|--verbose] VolumeGroupName [Physi-
calVolumePath...]
DESCRIPTION
vgreduce allows you to remove one or more unused physical volumes from a volume group.
OPTIONS
See lvm for common options.
-a, --all
Removes all empty physical volumes if none are given on command line.
--removemissing
Removes all missing physical volumes from the volume group, if there are no logical volumes allocated on those. This resumes normal
operation of the volume group (new logical volumes may again be created, changed and so on).
If this is not possible (there are logical volumes referencing the missing physical volumes) and you cannot or do not want to remove
them manually, you can run this option with --force to have vgreduce remove any partial LVs.
Any logical volumes and dependent snapshots that were partly on the missing disks get removed completely. This includes those parts
that lie on disks that are still present.
If your logical volumes spanned several disks including the ones that are lost, you might want to try to salvage data first by acti-
vating your logical volumes with --partial as described in lvm (8).
SEE ALSOlvm(8), vgextend(8)Sistina Software UK LVM TOOLS 2.02.95(2) (2012-03-06) VGREDUCE(8)
01-12-2017
