HP LH4r HP Ultra/Wide SCSI 4 GB and 9 GB Hard Disk Drive - Page 34

Delay Spin-Up, Motor Start Enable, Parity Disable, Reserved, Write Protect, Delay Time

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Appendix A Jumper Settings ID Description DS Delay Spin-Up On* Motor start up is delayed by the sum of the SCSI ID times 6 seconds after power is applied; i.e., Drive 0 spindle starts immediately, drive 1 starts after a 6 second delay, drive 2 starts after a 12 second delay, and so forth. Off Motor start up begins immediately after system power up, unless Motor Start Enable is on. If Motor Start Enable is on, it overrides this setting. ME Motor Start Enable On Drive spindle starts when the Start Unit command is received from the host system. If the Delay Spin-Up feature is on, the Delay Spin-Up feature is overridden. Off* Spindle starts immediately after power up. If Delay Spin-Up is on, it overrides this setting. PD Parity Disable On Parity checking and parity error reporting by the drive is disabled. Off* Parity checking and parity error reporting by the drive is enabled. The drive checks for parity and reports the results of parity checking to the host system. RES Reserved This pin set is not used and must remain as set at the factory. WP Write Protect On The drive is write protected. Off* The drive is not write protected. 12/6 Delay Time On The delay spin-up is 12 seconds. Off* The delay spin-up is 6 seconds. * Default NOTE Jumpers are "off," when the jumper is not installed (no electrical connection) or "on," when the jumper is in place (completing the electrical connection). 30

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Appendix A
Jumper Settings
30
ID
Description
DS
Delay Spin-Up
On*
Motor start up is delayed by the sum of the SCSI ID times 6
seconds after power is applied; i.e., Drive 0 spindle starts
immediately, drive 1 starts after a 6 second delay, drive 2 starts
after a 12 second delay, and so forth.
Off
Motor start up begins immediately after system power up,
unless Motor Start Enable is on. If Motor Start Enable is on, it
overrides this setting.
ME
Motor Start Enable
On
Drive spindle starts when the Start Unit command is received
from the host system. If the Delay Spin-Up feature is on, the
Delay Spin-Up feature is overridden.
Off*
Spindle starts immediately after power up.
If Delay Spin-Up is
on, it overrides this setting.
PD
Parity Disable
On
Parity checking and parity error reporting by the drive is
disabled.
Off*
Parity checking and parity error reporting by the drive is
enabled. The drive checks for parity and reports the results of
parity checking to the host system.
RES
Reserved
This pin set is not used and must remain as set at the factory.
WP
Write Protect
On
The drive is write protected.
Off*
The drive is not write protected.
12/6
Delay Time
On
The delay spin-up is 12 seconds.
Off*
The delay spin-up is 6 seconds.
* Default
NOTE
Jumpers are "off," when the jumper is not installed (no
electrical connection) or "on," when the jumper is in place
(completing the electrical connection).