From: Hannes Reinecke <hare@suse.de>
To: lsf-pc@lists.linux-foundation.org
Cc: SCSI Mailing List <linux-scsi@vger.kernel.org>
Subject: [LSF/MM TOPIC] I_T Nexus loss SCSI error handling
Date: Mon, 21 Jan 2013 12:18:46 +0100 [thread overview]
Message-ID: <50FD2416.3070500@suse.de> (raw)
Hi all,
here's a topic I'd like to discuss at LSF/MM:
SCSI error handling update to handle I_T Nexus loss.
The current error handler still uses a 'target reset' (or, rather,
bus reset) strategy, although the respective TMF has been obsoleted
since SAM-3. SAM-5 defines an I_T nexus loss event instead, which so
far has only been implemented in libsas.
There has been some discussions on the mailing list, but so far
there hasn't been any conclusion.
So I would like to discuss a possible implementation of a I_T Nexus
loss strategy and how to keep compability with SAM-2 targets.
Cheers,
Hannes
--
Dr. Hannes Reinecke zSeries & Storage
hare@suse.de +49 911 74053 688
SUSE LINUX Products GmbH, Maxfeldstr. 5, 90409 Nürnberg
GF: J. Hawn, J. Guild, F. Imendörffer, HRB 16746 (AG Nürnberg)
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next reply other threads:[~2013-01-21 11:18 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-01-21 11:18 Hannes Reinecke [this message]
2013-02-05 0:08 ` [LSF/MM TOPIC] I_T Nexus loss SCSI error handling Roland Dreier
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