From: Mike Snitzer <snitzer@redhat.com>
To: Akshay Lal <alal@cleversafe.com>
Cc: device-mapper development <dm-devel@redhat.com>,
John Quigley <jquigley@cleversafe.com>
Subject: Re: User specific priorities on for iscsi paths doesn't seem to work
Date: Fri, 7 Aug 2009 16:43:04 -0400 [thread overview]
Message-ID: <20090807204304.GA1181@redhat.com> (raw)
In-Reply-To: <4A7C8DB4.1090608@cleversafe.com>
On Fri, Aug 07 2009 at 4:25pm -0400,
Akshay Lal <alal@cleversafe.com> wrote:
> I'm having a few issues with path priorities. It seems that the choice
> of path to use during I/O is independent of the user defined priorities
> for each path.
>
> I am setting the priorities by executing writing a script that is used
> by prio_callout. This seems to work when I execute multipath -ll since
> all the specified priorities show up correctly. (the
> path_grouping_policy being used is failover)
...
> Is there something I'm doing wrong? I would like to be able to define
> the priorities per device, and ensure that data only traverses on the
> lower priority path when
> a) a failure to the first path (path with a higher priority) occures
> b) no other path with a higher priority exists
Do things behave as you'd like if you change path_grouping_policy to
'group_by_prio'?
Mike
next prev parent reply other threads:[~2009-08-07 20:43 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-08-07 20:25 User specific priorities on for iscsi paths doesn't seem to work Akshay Lal
2009-08-07 20:43 ` Mike Snitzer [this message]
2009-08-07 21:07 ` Akshay Lal
2009-08-07 21:21 ` Mike Snitzer
2009-08-07 21:28 ` Akshay Lal
2009-08-07 21:31 ` Akshay Lal
2009-08-07 21:50 ` John A. Sullivan III
2009-08-07 20:59 ` John A. Sullivan III
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