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List:       linux-scsi
Subject:    [LSF/MM TOPIC] SCSI referrals support
From:       Hannes Reinecke <hare () suse ! de>
Date:       2011-01-20 15:53:21
Message-ID: 4D385C0A.3000901 () suse ! de
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Agenda topic proposal:

SCSI referrals support has already been discussed at last year's LSF
conference. However, the solution proposed there would not support
failover and would require quite a lot of changes to multipathing.

To enable failover it might be an idea to handle the LUN directly in
multipathing. This would require eg:
- request splitting
- I/O alignment handling
- SCSI unit attention handling

I would be giving a short overview/presentation of the current
state of the art, the shortcomings on the original proposal,
and would like to invite a discussion on how to best support
SCSI referrals.

Cheers,

Hannes
-- 
Dr. Hannes Reinecke		      zSeries & Storage
hare@suse.de			      +49 911 74053 688
SUSE LINUX Products GmbH, Maxfeldstr. 5, 90409 Nürnberg
GF: Markus Rex, HRB 16746 (AG Nürnberg)
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