From: Bart Van Assche <bvanassche@acm.org>
To: device-mapper development <dm-devel@redhat.com>
Cc: Mike Snitzer <snitzer@redhat.com>,
"Stewart, Sean" <Sean.Stewart@netapp.com>,
Alasdair Kergon <agk@redhat.com>
Subject: Re: dm-multipath: Accept failed paths for multipath maps
Date: Thu, 19 Dec 2013 09:21:42 +0100 [thread overview]
Message-ID: <52B2AC96.8010909@acm.org> (raw)
In-Reply-To: <1387380498.7608.6.camel@ict-vth-stewarts01.ict.englab.netapp.com>
On 12/18/13 16:28, Stewart, Sean wrote:
> The most severe case is with
> InfiniBand, where the LLD may place a device offline, then every single
> reload that is trying to add a good path in will fail. I will qualify
> this by saying that I realize it is a problem that the device gets
> placed offline in the first place, but this patch would allow it a
> chance to continue on. The user still has to take manual steps to fix
> the problem in this case, but it seems less disruptive to applications.
Are you perhaps referring to the SRP initiator ? The above is correct
for old versions of the SRP initiator (< Linux kernel 3.12) but no
longer for upstream kernel versions >= 3.12. An effort is ongoing to
backport the latest SRP initiator changes into RHEL and SLES.
Bart.
next prev parent reply other threads:[~2013-12-19 8:21 UTC|newest]
Thread overview: 26+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-12-18 7:52 [PATCHv2] dm-multipath: Accept failed paths for multipath maps Hannes Reinecke
2013-12-18 14:08 ` Mike Snitzer
2013-12-18 14:25 ` Hannes Reinecke
2013-12-18 15:28 ` Stewart, Sean
2013-12-19 8:21 ` Bart Van Assche [this message]
2014-02-19 1:14 ` Mike Snitzer
2014-02-19 8:11 ` Bart Van Assche
2014-07-18 0:04 ` Mike Snitzer
2014-07-18 0:23 ` Mike Snitzer
2014-07-18 6:00 ` Hannes Reinecke
2014-07-18 16:04 ` Mike Snitzer
2014-07-18 16:15 ` Mike Snitzer
2014-07-21 6:05 ` Hannes Reinecke
2014-07-18 0:29 ` John Utz
2014-07-18 2:18 ` Mike Snitzer
2014-07-18 3:31 ` John Utz
2014-07-18 5:57 ` Hannes Reinecke
2014-07-18 14:38 ` Mike Snitzer
2014-07-18 17:04 ` John Utz
2014-07-21 14:23 ` ZAC target (Was: Re: dm-multipath: Accept failed paths for multipath maps) Hannes Reinecke
2014-07-21 19:28 ` Kent Overstreet
2014-07-22 5:46 ` Hannes Reinecke
2014-07-22 8:08 ` Matias Bjorling
2014-07-18 16:51 ` dm-multipath: Accept failed paths for multipath maps John Utz
2014-07-18 6:12 ` Hannes Reinecke
2013-12-18 15:28 ` Merla, ShivaKrishna
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