HP C2488A User Manual

• Power-On Sequence Sequence. At Power-on, the Target performs the following:
Turn on LED
Microprocessor
Self Test
Microprocessor RAM Test
Data Controller Test
ECC Verification Test
Buffer RAM Test, first 64 bytes
Test
and Initialize Servo Processor .
Initialize SCSI interface
If Auto Spin-Up is not enabled:
turn off LED and wait for a command
If Auto Spin-Up is enabled:
begin spin-up sequence:
Start spindle motor (See Note below)
Test buffer RAM while spindle is gaining speed
Settle heads on track and calibrate servo system
Perform head alignments
Write/Read Test
Initialize
Spare Table
Initialize Logs
Initialize
Saved Pages Information
Turn off LED and wait for a command
Note: While
the spindle motor is spinning up, the drive will respond to all commands
(except
REQUEST SENSE and INQUIRY) with a status byte of Check Condition. The
subsequent REQUEST SENSE command will return a Sense Key Code of Not Ready.
• Data Head Alignment. These drives incorporate the capability to perform periodic
data head alignments. A full head alignment is executed at power-on. ,Subsequent head
alignments may be executed relative
to temperature changes and/or elapsed time since
- '
power-on.
• Bus Reset. In response to a SCSI bus reset or Bus Device Reset message, the Target will
perform
the following:
Turn on LED
Abort Any Command in Progress (reads/writes are aborted at sector boundaries)
Initialize
SCSI interface
Initialize Controller
Initialize
Spare Table
Initialize Logs
Initialize
Saved Pages Information
Turn off LED and wait for a command
4·2 SCSI Interface
DRAFT
1/18/93 09:58

HP C2488A Specifications

General

Brand	HP
Model	C2488A
Category	Storage
Language	English