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From: "Ulrich Windl" <Ulrich.Windl@rz.uni-regensburg.de>
To: <haowenchao@huawei.com>
Cc: "open-iscsi" <open-iscsi@googlegroups.com>,
	<linfeilong@huawei.com>, <liuzhiqiang26@huawei.com>,
	<jejb@linux.ibm.com>, <martin.petersen@oracle.com>,
	<michael.christie@oracle.com>, "Chris Leech" <cleech@redhat.com>,
	"Lee Duncan" <lduncan@suse.com>, <linux-kernel@vger.kernel.org>,
	<linux-scsi@vger.kernel.org>
Subject: Antw: [EXT] Re: [PATCH 0/2] scsi:donot skip lun if inquiry returns PQ=1 for all hosts
Date: Thu, 15 Dec 2022 09:07:28 +0100	[thread overview]
Message-ID: <639AD5C0020000A100050749@gwsmtp.uni-regensburg.de> (raw)
In-Reply-To: <Y5rHX95Vvl1aLhbp@infradead.org>

>>> Christoph Hellwig <hch@infradead.org> schrieb am 15.12.2022 um 08:06 in
Nachricht <Y5rHX95Vvl1aLhbp@infradead.org>:
> On Wed, Dec 14, 2022 at 03:08:44PM +0800, Wenchao Hao wrote:
>> When iSCSI initiator logged in target, the target attached none valid
>> lun but lun0. lun0 is not an valid disk, while it would response
>> inquiry command with PQ=1 and other general scsi commands like probe lun.
>> The others luns of target is added/removed dynamicly.
> 
> I can't find any special casing of LUN0 in RFC7144, can you clarify
> where you think that treats LUN0 any differently than other transports?

Actusally I have no idea, but as a user of FC SAN systems I can remember a case when a storage system had to present a dummy LUN0 to enable hosts to find other LUNs (while LUN0 was never actually used). Maybe the client code was imperfect, I don't know.

> 
> -- 
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> To unsubscribe from this group and stop receiving emails from it, send an 
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> To view this discussion on the web visit 
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> .





  reply	other threads:[~2022-12-15  8:07 UTC|newest]

Thread overview: 13+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-12-14  7:08 [PATCH 0/2] scsi:donot skip lun if inquiry returns PQ=1 for all hosts Wenchao Hao
2022-12-14  7:08 ` [PATCH 1/2] scsi:core:Add sysfs interface to control if skip lun with PQ=1 Wenchao Hao
2022-12-18 21:37   ` Mike Christie
2022-12-28  8:46     ` Wenchao Hao
2022-12-14  7:08 ` [PATCH 2/2] scsi:iscsi_tcp:Do not skip lun inquiry returns PQ=1 Wenchao Hao
2022-12-15  7:06 ` [PATCH 0/2] scsi:donot skip lun if inquiry returns PQ=1 for all hosts Christoph Hellwig
2022-12-15  8:07   ` Ulrich Windl [this message]
2022-12-16  7:11     ` Antw: [EXT] " Christoph Hellwig
2022-12-15  9:09   ` Wenchao Hao
2022-12-16  7:12     ` Christoph Hellwig
2022-12-16 11:41       ` Wenchao Hao
2022-12-23 15:54         ` Christoph Hellwig
2022-12-28  9:35           ` Wenchao Hao

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