These steps below explain the disk addressing and cabling for the D1000 only.
CABLING THE D1000
The D1000 68 pin connect is Differential Ultra SCSI connections.
The D1000 is available in 2 models, a 8 drive or 12 drive system.
The D1000 has the capitablity of using all 8 or 12 drives on one
host. Or you can divide your D1000 into 2 backplanes each using
4 or 6 drives, depending on which model you have, on each host.
The D1000 CAN NOT be dual hosted.
On the rear of the D1000 you have 4 68pin scsi connectors.
If you will be connecting all 8 or 12 drives to one system you will
need to connect the scsi cable from the host to the far left
or the far right connector. On the other far right or left
68pin connection you need to connect a differential terminator
(Part Number 150-1890). The 2 inside connections you will need
to connect to each other using the small scsi cable which
came with the D1000 (Part number 530-1883).
If you will be using the D1000 as 2 backplanes of 4 or 6 drives each, you
will need to connect HOST-A to the far left 68pin connector. Then connect
HOST-B to the far right 68pin connector. Then the 2 inside 68pin connectors
each need to have a differential terminator (part number 150-1890) connected.
SETTING TARGET ADDRESS
You can change the address of the drives by changing the dipswitch settings
on SW1.
SWITCH DIP SETTING DESCRIPTION
------ --- ------- -----------
SW1 1 UP* Addresses 4 right drives to 8 - 11 or 8 - 13
SW1 1 DOWN Addresses 4 right drives to 0 - 3 or 0 - 5
SW1 2 UP Addresses 4 left drives to 8 - 11 or 8 - 13
SW1 2 DOWN* Addresses 4 left drives to 0 - 3 or 0 - 5
SW1 3 UP Wait for a start unit command
SW1 3 DOWN* Uses the SW1 dip 4 settings
SW1 4 UP* Delay each drive 12 sec X the drive id
SW1 4 DOWN Start all drives on power on
SW1 5 UP/DOWN Reserved for future use on the D1000
* denotes default settings.
NOTE: You must be careful in setting the switches. If you are not carefull
you can have conflict in the target address when using all drives
on a single host.
REFERENCE MATERIAL
Sun StorEdge A1000 & D1000 Installation, Operation & service manual
p/n 805-2624 