Compaq AA-RHGWC-TE manual Shared Scsi Buses with TL894 in Two-Bus Mode

In Figure 8–13, one bus is connected to port 1 (robotics controller and tape drives 0 and 1) and the other bus is connected to port 3 (tape drives 2 and 3). Ensure that the terminators are present on the tape drives 1 and 3.

Figure 8–13: Shared SCSI Buses with TL894 in Two-Bus Mode

Network

Member System 1

Memory Channel

KZPBA-CB (ID 6)

KZPBA-CB (ID 6)

T KZPBA-CB (ID 6)

11

T

Memory

Channel Member System 2

Interface

	T	Memory Channel
6
T	5	KZPBA-CB (ID 7)

5 KZPBA-CB (ID 7)

T KZPBA-CB (ID 7)

7

7

7

57

5

T DS-DWZZH-03

	T
2
	3
			T	4
Controller B		Controller A
HSZ70		HSZ70
StorageWorks
RAID Array 7000

(2-bus mode)

SCSI Port 4

SCSI Port 3

SCSI Port 2

SCSI Port 1

TL894

ZK-1625U-AI

Table 8–10 shows the components used to create the cluster shown in Figure 8–13.

Table 8–10: Hardware Components Used to Create the Configuration Shown in Figure 8–12

Callout Number	Description
1	BN38C or BN38D cablea
2	BN37A cableb
3	H8861-AA VHDCI trilink connector
4	H8863-AA VHDCI terminator
5	BN21W-0B Y cable

8–42Configuring a Shared SCSI Bus for Tape Drive Use