25
IV. Hardware Setup
II. Components
AR1000 RAID Subsystem Hardware Reference Guide
IDSEL 1=off
IDSEL 0=off
ON
IDSEL 1=on
IDSEL 0=on
ON
IDSEL 1=on
IDSEL 1=off
ON
ON
IDSEL 1=off
IDSEL 0=on
ON
IDSEL1 IDSEL0 Slot1
Slot2
Slot3A
Slot4
Slot5A
off
off
Resv.
on
on
15
12
11
8
3
on
off
14
9
6
4
1
off
on
13
10
5
2
0
ON
DLY_START
RMT_START
IDSEL 1
IDSEL 0
1
2
3
4
1
2
3
4
ON
Default setting
IDSEL 1
off
IDSEL 0
on
DLY_START
on
RMT_START
off
SCSI ID settings are made through DIP switches located on the SCSI
board. The SCSI board has four dip switches to set the hard drive’s
motor up delay time and SCSI ID.
SCSI ID Dip Switches
• 2-10. SCSI ID Setting
SCSI ID Setting
(*) Default
IDSEL1 IDSEL0 Slot1
Slot2
Slot3A/3B
Slot4
Slot5A/5B
off
off
Reserved
on
on
15
12
11
8
3
on
off
14
9
6
4
1
off
on
13
10
5
2
0
(*)
SCSI ID Setting
(*) Default
RMT_START DLY_START Description
off
off
Motor (spin) up when powering on
on
off
Motor (spin) up after START UNIT command
off
on
Motor (spin) up after 12xSCSI ID ms
on
on
Reserved
(*)
Hard Disk Drive Motor Up Delay
For Five-Tray SCA Hard Drive Model
