From: Zdenek Kabelac <zkabelac@redhat.com>
To: LVM general discussion and development <linux-lvm@redhat.com>
Subject: Re: [linux-lvm] Does LVM always do 'dm suspend' when lvcreating a thin snapshot?
Date: Fri, 4 Sep 2015 13:05:34 +0200 [thread overview]
Message-ID: <55E97AFE.6010009@redhat.com> (raw)
In-Reply-To: <CAFBvFDAwXs=JQ3eBDdUSYLQ8ja+McY38VC0WiGK1bTQRgjZB2g@mail.gmail.com>
Dne 4.9.2015 v 00:04 Mike McCracken napsal(a):
> When creating a thin snapshot of a thin volume, does LVM always freeze the FS?
>
> I see when I run lvcreate with -vvv that it sends the 'dm suspend' message to
> the origin lv, but on looking at the code I wasn't quite able to convince
> myself that it will always do that, or under what circumstances it won't.
>
Hi
Yes - suspend of thin's snapshot origin is always enforced
as you normally want snapshot FS to be in consistent state.
Zdenek
next prev parent reply other threads:[~2015-09-04 11:05 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-09-03 22:04 [linux-lvm] Does LVM always do 'dm suspend' when lvcreating a thin snapshot? Mike McCracken
2015-09-04 11:05 ` Zdenek Kabelac [this message]
2015-09-04 16:52 ` Mike McCracken
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