March 1, 1987                                         X3T9.2/88-028

To: X3T9.2 Committee (SCSI)   

From: James McGrath (Quantum)

Subject: Proposed wording for new Unit Attention Conditions



This note is in responce to 88-026r0.  I just want to make some
additions/modifications to the list of conditions that generate a
Unit Attention condition:

Instead of the note on INQUIRY command, the following should be used:

     new information is available for the READ CAPACITY, INQUIRY,
     MODE SENSE, or ACCESS LOG commands


That is, when the disk comes up to speed, and of the above command
may be affected by new information.

In addition to noting when new code has been loaded, the following
should be noted:

     a CHANGE DEFINITION command has been executed (or the operating
     definition self modified by the target, including loading code
     from the disk)