linux-kernel - Re: [Scst-devel] [ANNOUNCE]: Comparison of features between different SCSI targets (SCST, STGT, IET, LIO) updated

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Message-ID: <AANLkTikYgSrW-fSRNBMU2DWYk2x1xQSAqKhoW1Lijj4N@mail.gmail.com>
Date:	Thu, 2 Sep 2010 15:00:58 -0500
From:	Chris Weiss <cweiss@...il.com>
To:	Vladislav Bolkhovitin <vst@...b.net>
Cc:	linux-kernel@...r.kernel.org, linux-scsi@...r.kernel.org,
	scst-devel <scst-devel@...ts.sourceforge.net>,
	iscsitarget-devel@...ts.sourceforge.net, stgt@...r.kernel.org,
	James Bottomley <James.Bottomley@...senpartnership.com>,
	FUJITA Tomonori <fujita.tomonori@....ntt.co.jp>,
	Mike Christie <michaelc@...wisc.edu>,
	Ross Walker <rswwalker@...il.com>
Subject: Re: [Scst-devel] [ANNOUNCE]: Comparison of features between different
 SCSI targets (SCST, STGT, IET, LIO) updated

On Thu, Sep 2, 2010 at 2:31 PM, Vladislav Bolkhovitin <vst@...b.net> wrote:
> Hello,
>
> I updated the Linux SCSI targets comparison page
> http://scst.sourceforge.net/comparison.html, which compares features of
> the existing Linux SCSI target subsystems. The comparison includes SCST,
> STGT, IET and LIO. I added IET there, because it is the most used Linux
> iSCSI target at the moment.
.
.
>
> If you see I'm wrong somewhere or forgot something, you are welcome to
> correct me and I will fix that.
>
> Vlad
>

as a user following the potential inclusion of a kernel-space target,
iscsi specifically, I would be very interested in seeing what other
pluses the other frameworks have over scst, because if this chart is
accurate, all the other targets have quite a ways to go to catch up.

To me, lacking correct reserve and task management means "not ready
for public consumption".  Making any kernel change that does not have
RESERVE/RELEASE and full TM command support is only going to make
Linux look buggy and amateur-ish in the storage world.  Best to not
change anything than to implement something without them.  These 2
features alone are what helped me choose SCST in the first place.
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