Reserve and Release for printers and comm devices
tedl at exabyte.com
tedl at exabyte.com
Mon Jan 15 07:43:25 PST 1996
* From the SCSI Reflector, posted by:
* <tedl at Exabyte.COM>
To: SCSI Reflector
From: Ted Lappin
Exabyte
tedl at exabyte.com
(303) 417-7718
When editing the SSC document, I discovered that the reserve
and release commands were optional for printers and not
mentioned for communications devices.
I propose that reserve and release (ordinary, SCSI-2 style,
not persistent and no extents) be mandatory for SCSI-3
printers and communications devices.
Both of these device models are part of the stream class of
devices which have an implicit state based on previous
commands. To allow proper control of these devices in
multi-initiator environments, reserve and release are
required. Therefore, I believe that these commands should
be mandatory.
Does anyone else have an opinion on this, particularly to
the contrary? I would appreciate input from you or anyone
you know, particularly implementers of SCSI printer or
communication devices.
Thank you.
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