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From: Luben Tuikov <luben_tuikov@adaptec.com>
To: Patrick Mansfield <patmans@us.ibm.com>
Cc: dougg@torque.net, linux-scsi@vger.kernel.org
Subject: Re: Report luns [was: Apple Xserve RAID and qlogic ISP2312 (qla2300)]
Date: Tue, 09 Nov 2004 17:07:16 -0500	[thread overview]
Message-ID: <41913F94.4030003@adaptec.com> (raw)
In-Reply-To: <20041109211055.GA11459@us.ibm.com>

Patrick Mansfield wrote:
> Do we also have to change to send the INQUIRY to the well known LUN?
> 
> And then someday add black and white list flags and code for them ...
> 
> Why is stuff like this even added to the standard??? Why not use LUN 0
> (all zeroes) or at worst have one well known LUN like the all f's?
> 
> The hierarchical LUN stuff and the various address modes are dumb, just
> treat the LUN as a tag/identifier (similiar to a TCP/IP network port) and
> leave the interpretation of it up to the target device (or at worst the
> transport).

And I believe this is what a lot of vendors will do: support
REPORT LUN on LUN 0 regardless if whether there's a device
there or not.  BTW the standard says "LUN 0 or REPORT LUNS W-LUN",
so the vendors would take advantage of this for compatibility.

	Luben



  reply	other threads:[~2004-11-09 22:07 UTC|newest]

Thread overview: 20+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2004-10-27 23:33 Apple Xserve RAID and qlogic ISP2312 (qla2300) Catalin Muresan
2004-10-28 14:37 ` Patrick Mansfield
2004-10-28 15:35   ` Catalin Muresan
2004-10-28 16:42     ` Patrick Mansfield
2004-10-28 16:51       ` Patrick Mansfield
2004-10-28 17:21       ` Andrew Vasquez
2004-10-29  8:58         ` Catalin Muresan
2004-10-29 18:06           ` Patrick Mansfield
2004-10-30 15:44             ` Catalin Muresan
2004-11-01 10:56             ` Catalin Muresan
2004-11-01 19:48               ` Patrick Mansfield
2004-11-09  2:49                 ` Report luns [was: Apple Xserve RAID and qlogic ISP2312 (qla2300)] Douglas Gilbert
2004-11-09 15:06                   ` Luben Tuikov
2004-11-09 21:10                     ` Patrick Mansfield
2004-11-09 22:07                       ` Luben Tuikov [this message]
2004-11-10  4:47                       ` Report luns Douglas Gilbert
2004-11-10 14:13                         ` Luben Tuikov
2004-11-10  5:19                     ` Report luns [was: Apple Xserve RAID and qlogic ISP2312 (qla2300)] Douglas Gilbert
2004-11-10 14:47                       ` Luben Tuikov
2004-10-29  9:01       ` Apple Xserve RAID and qlogic ISP2312 (qla2300) Catalin Muresan

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