SCSI IDs (8650)
SCSI IDs
Each SCSI device that is connected to the integrated SCSI-2 controllers
needs a unique identification (ID) so that the controllers can identify the
devices and ensure that different devices do not attempt to transfer data
at the same time. To set IDs for SCSI devices,
refer to the instructions that come with those devices.
The SCSI ID for the preinstalled CD-ROM drive is set to 5. The
SCSI ID for the backplane is set to 6. The SCSI ID for the
SCSI-2 controller is set to 7.
The server automatically sets SCSI IDs for hot-swap drives,
according to the jumper settings on the SCSI-2 backplanes.
If you need to set SCSI IDs for SCSI devices, refer to the
instructions that come with these devices.
The server uses the SCSI IDs to send status information to the
indicator lights above each hot-swap bay.
Jumpers on each backplane control the SCSI IDs for the bays. To
resolve any SCSI ID conflict that might occur, you can change
the default ID addresses of the drives by changing the jumper settings
on the SCSI backplane. Each SCSI ID must be unique for each drive
that you connect to a given backplane.
Each of the two SCSI backplanes in the server supports
six of the hot-swap bays. The top six hot-swap drives
connect to the upper backplane.
the lower six drives connect to the lower backplane.
on each set of two rows, the drives are numbered 1 to 6.
The below Table shows
the SCSI IDs that you can use for hot-swap drives.
SCSI IDs for Hot-Swap Drives
J3 J4 HD1 HD2 HD3 HD4 HD5 HD6
----------------------------------------------------------
1-2 1-2 0 1 10 3 4 13
1-2(1) 2-3(1) 0 1 2 3 4 5
2-3 2-3 8 9 2 11 12 5
2-3(2) 1-2(2) 8 9 10 11 12 13
----------------------------------------------------------
(1) Factory default setting for ARRAY models.
(2) Factory default setting for Non-ARRAY models.
The processing sequence for SCSI devices is set through the
SCSISelect Utility program (refer to the Server SCSI Software User's Guide for more
information). The sequence proceeds from the
lowest SCSI ID to the highest (0 to 6, then 8 to 15).
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