From: David Teigland <teigland@redhat.com>
To: Eric Ren <zren@suse.com>
Cc: LVM general discussion and development <linux-lvm@redhat.com>
Subject: Re: [linux-lvm] lvmlockd: how to convert lock_type from sanlock to dlm?
Date: Mon, 20 Nov 2017 10:10:07 -0600 [thread overview]
Message-ID: <20171120161007.GA29888@redhat.com> (raw)
In-Reply-To: <dc362b54-42cf-025d-ec3a-22e14abc4745@suse.com>
On Mon, Nov 20, 2017 at 06:35:20PM +0800, Eric Ren wrote:
> On my testing cluster,� the lvmlockd was firstly used with sanlock and
> everything was OK. After some play, I want to change the "sanlock"
> lock_type of a VG into "dlm" locktype.
> # vgchange --lock-type none --force vg1������ // the cmd comes from `man lvmlockd`
> Command does not accept option: --force.
First you'll need this recent fix:
https://sourceware.org/git/?p=lvm2.git;a=commitdiff;h=f611b68f3c02b9af2521d7ea61061af3709fe87c
--force was broken at some point, and the option is now --lockopt force.
To change between lock types, you are supposed to be able to change to a
local VG, then from local to the other lock type. The man page sections:
changing a lockd VG to a local VG
changing a local VG to a lockd VG
But it looks like a fix is needed in those instructions. I believe
"vgchange --lock-type none <vgname>" needs to include --lockopt force.
If you could verify this for me, I'll update the man page.
Thanks
Dave
next prev parent reply other threads:[~2017-11-20 16:10 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-11-20 10:35 [linux-lvm] lvmlockd: how to convert lock_type from sanlock to dlm? Eric Ren
2017-11-20 16:10 ` David Teigland [this message]
2017-11-21 4:11 ` Eric Ren
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