HP C2488A User Manual

Table A-1.Supported SCSI-2 Commands (continued)
Command Opcode
'Use 'Use
Description
(hex) Before When
Spinup
Wpl
Enabled
Read Capacity
25 No Yes Enables Initiator to request information regarding capacity of
logical unit. Use of PMI bit supported. Relative Addressing not
supported (REL=O) .
..
"
Read Defect 37
No
Yes
Requests Target to transfer media defect data to Initiator.
Data Target returns P, G, or P+G lists in physical sector or bytes from
index format.
Read Long
3E No
Yes Requests Target to return the header, data field and ECC bytes
of one physical sector.
Reassign Blocks
07 No No
Requests
Target to reassign defective logical blocks to an area on
logical unit reserved for this purpose. It is recommended that the
defect list contain only one defect location per command.
Receive
lC
No
Yes
Requests the target to send the results of a previous Send
Diagnostic Diagnostic command to the initiator.
Results
Release 17
Yes Yes
Releases previously reserved logical units. Unit and Third-Party
Release supported. Extent Release not supported.
Request Sense 03 Yes Yes
Only
the Extended Sense Data Format is supported, The Bit
Pointer and Field Pointer fields are not used.
Reserve
16 Yes Yes
Unit
and Third-Party Reservations are supported. Extent
Reservations are not supported.
Rezero Unit 01 No Yes
Requests Target to perform a recalibrate and then to seek to
logical address O.
Seek
No
Yes
Requests Target to seek to a specified address. Both 6-byte and
(6-byte) OB
lO-byte (extended) formats are supported. Target returns GOOD
(lO-byte)
2B
status when seek is complete.
Send Diagnostic
to
No Yes
Self-test (Power-On) and Translate Address are supported. IT
self-test·fails, CHECK CONDITION status indicates that results
are available via REQUEST SENSE command.
Start/Stop Unit IB Yes Yes
Both modes are supported.
Synchronize
35
No No
Ensures
that specified logical blocks in the cache memory have
Cache
their most recent data value recorded on the media.
Test Unit
00
Yes Yes
Checks Target spindle for proper speed. Target returns GOOD
Ready status if drive is up to speed.
Verify
2F No No
Requests Target to verify the data written"on the media by
performing a selectable ECC check or a byte compare. Relative
addressing
not supported. (REL=O).
Notes:
1. WP = Write Protect
2. Mode Select and Mode Sense commands that do not involve saved pages may be used before spinup.
A-4 SCSI Command Descriptions DRAFT
1/18/93 09:58

HP C2488A Specifications

General

Brand	HP
Model	C2488A
Category	Storage
Language	English