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Date:      Wed, 25 May 2011 06:49:10 -0700
From:      Matthew Jacob <mj@feral.com>
To:        Daniel Braniss <danny@cs.huji.ac.il>
Cc:        freebsd-scsi@freebsd.org
Subject:   Re: iscsi_initiator and tag opening problem
Message-ID:  <4DDD08D6.30105@feral.com>
In-Reply-To: <E1QP8OZ-000CmK-GP@kabab.cs.huji.ac.il>
References:  <E1QOqI2-0000Hy-NI@kabab.cs.huji.ac.il> <4DDBB3F7.20303@feral.com> <E1QOsMz-00028p-LN@kabab.cs.huji.ac.il> <alpine.BSF.2.00.1105241105550.40287@ns1.feral.com> <E1QP8OZ-000CmK-GP@kabab.cs.huji.ac.il>

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On 5/25/2011 12:20 AM, Daniel Braniss wrote:
> ...
> is this somehow detectable? or a list of '[non]complaint' targets is needed?
You probably should decide whether to just use SIMPLE (no matter what) 
or have a list. Since it's a violation of SAM I doubt that there is a 
way to detect it.
> ...
> any side effects? or should I make it tunable?

As it stands now for FreeBSD, making them all SIMPLE would probably be 
okay. Linux does that apparently.
I'd make it a tunable with the default to SIMPLE. I asked some of the 
(now NetApp) Engenio engineers, and their arrays' iSCSI implementation 
*does* handle all of the different tag types.
> Thanks Matthew, you made my day!
>
>
No problem. Thank you, actually. I'm starting to work more with iSCSI 
for my day job which has been an interesting change.



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