Compaq AA-RHGWB-TE manual Cabling the DS-TZ89N-VW Tape Drives

Table 8–2: DS-TZ89N-VW Switch Settings (cont.)

SCSI ID	SCSI ID Selection Switches
2	Off	On	Off	Off	Off	Off	Off	Off
3	On	On	Off	Off	Off	Off	Off	Off
4	Off	Off	On	Off	Off	Off	Off	Off
5	On	Off	On	Off	Off	Off	Off	Off
6	Off	On	On	Off	Off	Off	Off	Off
7	On	On	On	Off	Off	Off	Off	Off
8	Off	Off	Off	On	Off	Off	Off	Off
9	On	Off	Off	On	Off	Off	Off	Off
10	Off	On	Off	On	Off	Off	Off	Off
11	On	On	Off	On	Off	Off	Off	Off
12	Off	Off	On	On	Off	Off	Off	Off
13	On	Off	On	On	Off	Off	Off	Off
14	Off	On	On	On	Off	Off	Off	Off
15	On	On	On	On	Off	Off	Off	Off

aSBB tape drive SCSI ID is determined by the SBB physical slot.

8.2.2Cabling the DS-TZ89N-VW Tape Drives

No special cabling is involved with the DS-TZ89N-VW as it is installed in a BA356 StorageWorks enclosure. A DWZZB-VA installed in slot 0 of the BA356 provides the connection to the shared SCSI bus.

You must remove the DWZZB-VW differential terminators. Ensure that jumpers W1 and W2 are installed to enable the single-ended termination. The BA356 jumper must be installed, and connector JB1 on the personality module must be left open to provide termination at the other end of the single-ended bus.

A trilink connector on the differential end of the DWZZB-VW allows connection to the shared bus. If the BA356 containing the DS-TZ89N-VW is on the end of the bus, install an H879-AA terminator on the trilink for that BA356 to provide termination for the shared SCSI bus.

Figure 8–2 shows a TruCluster Server cluster with two shared SCSI buses. The bottom shared bus has a BA356 with disks at SCSI IDs 1, 3, 4, and 5. The other BA356 contains a DS-TZ89N-VW at SCSI ID 2.

Configuring a Shared SCSI Bus for Tape Drive Use 8–7