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10. Refer to Figure 18.
11. Each disk drive module is identified to the using system by a SCSI address.
This address is related to the slot in which the disk drive module is installed.
The SCSI address switch 1 must always be set to the Off position.
Table 1 shows the SCSI addresses of the disk drive module slots.
Note: On the 2104 Model DU3, the physical numbers of the disk drive
module slots are always 1 through 14, from left to right.
Table 1. SCSI Addresses of Disk Drive Module Slots
Disk drive
module slot
1234567891011121314
SCSI
address
0123456891011121314
Note: If the 2104 is configured for single SCSI bus mode with two SCSI
attachments (for example, SCSI adapters), SCSI addresses 5 and 6
cannot be used. The disk drive module slots with SCSI addresses 5 and
6 (disk drive module slots 6 and 7) must contain dummy disk drive
modules.
The SCSI enclosure services (SES) use address 15 if the Enable Enclosure
Services switch is set to On.
On
Off
123
4
Figure 18. Switch Card Assembly Internal Switches
24 2104 Model DU3 Installation Guide
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