AIX

I think you did everything you could have done with your procedure. Sorry for asking, but this is not necessarily the case in all threads, so i had to make sure.

I am with MichaelFelt on this one: it is probably not possible, quite like the shrinking of LVs was not possible for a long time (while enlarging LVs was easy). You didn't tell us which AIX version you are using and i am not sure if shrinking a VG even should be possible according to the specs. In case it is i suggest opening a PMR.

I hope this helps.

bakunin

in my opinion, shrinking a lun without data loss can only be possible with additional software on the operating system, special drivers, that communicate with lvm

with the vio server in between, this is not an easy task I guess, because you are missing the direct mapping storage lun to aix pv, so you might need npiv



if you want to shrink luns online, you can use thin provisioned luns if your storage supports it
its not trivial, but possible to free space up after it has been claimed

The other, and perhaps easiest approach would be to:
Hope this helps!

@bakunin

I am not complaining about forum, truly it is a great forum.
Thanks for all the support and guidance from everyone.

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