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From: Hannes Reinecke <hare@suse.de>
To: Jeremy Linton <jlinton@tributary.com>
Cc: Michael Christie <michaelc@cs.wisc.edu>,
	Linux Scsi <linux-scsi@vger.kernel.org>,
	"Elliott, Robert (Server Storage)" <Elliott@hp.com>
Subject: Re: [PATCH] Use a more selective error recovery strategy based on device capabilities
Date: Fri, 15 Feb 2013 08:17:36 +0100	[thread overview]
Message-ID: <511DE110.4040506@suse.de> (raw)
In-Reply-To: <511D4FB5.708@tributary.com>

On 02/14/2013 09:57 PM, Jeremy Linton wrote:
> On 2/13/2013 8:43 PM, Michael Christie wrote:
>> For the case where report supported TMFs is not supported can we just have the
 >> LLD return some new return code from the eh callback when it 
gets FUNCTION_REJECTED.
 >> scsi-ml would then clear the eh_*_ok bit, so at least it would 
not be called again..
>
>
> 	Hmm, that seems like a good idea. The question is, does propagating the flag
> change to all the devices on the I_T make sense?
>
Hmm. Again, I've yet to find a storage array which actually _does_ 
reject a TMF.
None of mine do, not even the latest and greatest NetApp Ontap 
version ...

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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      parent reply	other threads:[~2013-02-15  7:17 UTC|newest]

Thread overview: 10+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2013-02-12 18:19 [PATCH] Use a more selective error recovery strategy based on device capabilities Jeremy Linton
2013-02-12 20:57 ` Elliott, Robert (Server Storage)
2013-02-12 22:00   ` Jeremy Linton
2013-02-13 13:06 ` Hannes Reinecke
2013-02-13 15:46   ` Jeremy Linton
2013-02-14  2:43     ` Michael Christie
2013-02-14 20:57       ` Jeremy Linton
2013-02-14 23:42         ` Elliott, Robert (Server Storage)
2013-02-15 15:17           ` Jeremy Linton
2013-02-15  7:17         ` Hannes Reinecke [this message]

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