Cabling The Ds-Tz89N-Vw Tape Drives - Compaq TruCluster Server AA-RHGWB-TE Manual

Table 8–2: DS-TZ89N-VW Switch Settings (cont.)
SCSI ID
2
3
4
5
6
7
8
9
10
11
12
13
14
15
a SBB tape drive SCSI ID is determined by the SBB physical slot.

8.2.2 Cabling 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.
SCSI ID Selection Switches
Off On Off Off
On On Off Off
Off Off On Off
On Off On Off
Off On On Off
On On On Off
Off Off Off On
On Off Off On
Off On Off On
On On Off On
Off Off On On
On Off On On
Off On On On
On On On On
Configuring a Shared SCSI Bus for Tape Drive Use 8–7
Off Off Off Off
Off Off Off Off
Off Off Off Off
Off Off Off Off
Off Off Off Off
Off Off Off Off
Off Off Off Off
Off Off Off Off
Off Off Off Off
Off Off Off Off
Off Off Off Off
Off Off Off Off
Off Off Off Off
Off Off Off Off