From: Mike Snitzer <snitzer@redhat.com>
To: hare@suse.de
Cc: Junichi Nomura <j-nomura@ce.jp.nec.com>, dm-devel@redhat.com
Subject: Re: [PATCH v2 0/2] dm: alternate solution to reloading with failed paths
Date: Thu, 18 Sep 2014 14:50:30 -0400 [thread overview]
Message-ID: <20140918185029.GB10829@redhat.com> (raw)
In-Reply-To: <1411056149-16418-1-git-send-email-snitzer@redhat.com>
On Thu, Sep 18 2014 at 12:02pm -0400,
Mike Snitzer <snitzer@redhat.com> wrote:
> Hi Hannes,
>
> Here is v2 of Ben's approach to fixing the inability to reload a
> multipath table that includes failed paths. I've staged it in
> linux-dm.git's 'for-next' branch.
>
> But I wanted to send this v2 out to verify this approach works for
> you. This approach is focused on allowing failed paths to be pushed
> down in a multipath table.
>
> It does _not_ allow non-existent devices to be listed in an mpath
> table like your patchset did. So the aggressive dev_loss_tmo case
> isn't covered... but Ben said that case is already handled by
> multipathd getting a change event and pushing the table down without
> the removed SCSI device(s).
It also doesn't allow the initial multipath table load to include failed
devices...
prev parent reply other threads:[~2014-09-18 18:50 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-08-13 18:53 [PATCH 0/2] dm: alternate solution to reloading with failed paths Benjamin Marzinski
2014-08-13 18:53 ` [PATCH 1/2] dm-multipath: cleanup IO queueing after table load Benjamin Marzinski
2014-08-14 2:46 ` Mike Snitzer
2014-08-15 15:46 ` Benjamin Marzinski
2014-08-13 18:53 ` [PATCH 2/2] device-mapper: allow tables to share dm_devs Benjamin Marzinski
2014-09-15 21:44 ` [PATCH 0/2] dm: alternate solution to reloading with failed paths Mike Snitzer
2014-09-16 16:46 ` Benjamin Marzinski
2014-09-18 16:02 ` [PATCH v2 " Mike Snitzer
2014-09-18 16:02 ` [PATCH v2 1/2] dm mpath: stop queueing IO when no valid paths exist Mike Snitzer
2014-09-18 16:02 ` [PATCH v2 2/2] dm: allow active and inactive tables to share dm_devs Mike Snitzer
2014-09-18 18:48 ` Mike Snitzer
2014-09-18 18:50 ` Mike Snitzer [this message]
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