From mboxrd@z Thu Jan  1 00:00:00 1970
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Date: Mon, 05 Aug 2013 10:53:44 +0200
From: Zdenek Kabelac <zkabelac@redhat.com>
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Subject: Re: [linux-lvm] Linux LVM online shrinking :(
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To: LVM general discussion and development <linux-lvm@redhat.com>
Cc: DILIP KURUMANGHAT <dilip.kurumanghat@gmail.com>

Dne 1.8.2013 11:00, DILIP KURUMANGHAT napsal(a):
> Hi Team,
>
> You might already have come across this stuff many a times.
>
> I am sending this query as to why LVM is not supporting online shrink.
> How is that AIX can do the shrink but not in our best Linux.
>
> Is there a big difference i the underlying architecture which prevents us from
> an online shrink?
>

You are asking this question on a wrong mailing list.

LVM2 of course does fully support online device shrink.

The other side of story is - there is no filesystem I'd know about which
would be supporting online shrinking.  The fact is - it's pretty hard
to do and there are not many people interested in this feature - so I'd
not expect it would be written i.e. for ext4 anytime soon
(Since you could easily do that offline).


Zdenek