From: Douglas Gilbert <dgilbert@interlog.com>
To: SCSI development list <linux-scsi@vger.kernel.org>
Subject: T10 adds locally assigned UUID designation descriptor
Date: Mon, 8 Feb 2016 12:33:01 -0500 [thread overview]
Message-ID: <56B8D14D.7020502@interlog.com> (raw)
Recently, in draft spc5r08, T10 added a locally assigned RFC 4122
UUID *** designation descriptor. That descriptor can now be
returned for VPD page 0x83 (device identification) amongst others.
It can be used anywhere SCSI needs a unique identifier expanding
the previous set of preferred identifiers: EUI, NAA and SCSI_name
(iSCSI).
In the soon to be released sg3_utils version 1.42 the new UUID
designation descriptor is decoded including Hannes' --export
option found in sg_inq, for example:
# sg_inq --export /dev/sg0
...
SCSI_IDENT_LUN_UUID=11223344-5566-7788-aabb-ccddeeffffee
Perhaps some udev work is needed to incorporate this new identifier.
Doug Gilbert
** see https://en.wikipedia.org/wiki/Universally_unique_identifier
next reply other threads:[~2016-02-08 17:33 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-02-08 17:33 Douglas Gilbert [this message]
2016-02-08 19:00 ` T10 adds locally assigned UUID designation descriptor James Bottomley
2016-02-08 20:04 ` Douglas Gilbert
2016-02-09 0:02 ` Knight, Frederick
2016-02-09 15:30 ` Hannes Reinecke
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