Lto Conformance; General Behaviors; Reset Condition; Unit Attention Condition - Quantum LTO 2 User Manual

LTO Conformance

General Behaviors

Reset Condition

Unit Attention Condition

LTO-2 SCSI Interface Guide
Quantum LTO drives conform to the requirements of the Generation 1
SCSI Common Command Set Advisory Document (AU1-SCSI) for
Ultrium format devices.
This sections describes the general behaviors of the LTO tape drive.
When a reset is issued to the tape drive, the drive clears all uncompleted
1
commands, releases all SCSI device reservations, and sets the tape drive
to default modes. The Parallel SCSI drive returns to the Bus Free phase.
The Unit Attention condition in the tape drive typically results from the
1
following conditions:
• A Reset was previusly issued to the drive.
• The drive has just been powered on.
• A cartridge has been inserted.
• A log exception condition occurred.
• The mode pages have been changed.
• The cartridge has been loaded or unloaded to the Hold position, and
the Medium Auxiliary Memory (MAM) is accessible.
The Unit Attention Condition persists for each Initiator until that Initiator
issues a command other than
with a Check Condition Status. If the next command from that Initiator
following the Check Condition Status is
attention sense key is returned.
If the command is received from an Initiator with a pending
INQUIRY
Unit Attention Condition before the tape drive reports Check Condition
Chapter 1 SCSI Interface
for which the tape drive returns
INQUIRY
REQUEST SENSE
LTO Conformance
1
1
, then the unit
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