On Fri, Dec 16, 2022 at 07:41:26PM +0800, Wenchao Hao wrote:
> For nothing, I want the iscsi_tcp transport do not skip PQ=1 default
> as what it did before commit 948e922fc4461 ("scsi: core: map PQ=1,
> PDT=other values to SCSI_SCAN_TARGET_PRESENT").
Well, that commit was very much intentional
On 2022/12/16 15:12, Christoph Hellwig wrote:
> On Thu, Dec 15, 2022 at 05:09:31PM +0800, Wenchao Hao wrote:
>> In my opinion, if the addressed lun still response the
>> inquiry and other commands, we should not skip it,
>> maybe let the scsi drivers like sd/st/sg to determine
>> how to handle
On Thu, Dec 15, 2022 at 05:09:31PM +0800, Wenchao Hao wrote:
> In my opinion, if the addressed lun still response the
> inquiry and other commands, we should not skip it,
> maybe let the scsi drivers like sd/st/sg to determine
> how to handle this lun accordint to the PQ value.
>
> As discussed
On Thu, Dec 15, 2022 at 09:07:28AM +0100, Ulrich Windl wrote:
> 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
>
>>> Christoph Hellwig schrieb am 15.12.2022 um 08:06 in
Nachricht :
> 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
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
commit 948e922fc4461 ("scsi: core: map PQ=1, PDT=other values to
SCSI_SCAN_TARGET_PRESENT") returns SCSI_SCAN_TARGET_PRESENT if inquiry
returns PQ=1.
According to the SPC, PQ=1 means the addressed logical unit having the
indicated device type is not accessible, it does not mean the addressed
