Compaq AA-RHGWB-TE manual DS-DWZZH-05 Description, DS-DWZZH-05 Configuration Guidelines

•DS-DWZZH-03 and DS-DWZZH-05 UltraSCSI hubs may be housed in the same storage shelf with disk drives. Table 3–3 provides the supported configurations.

Figure 3–2 shows a front view of the DS-DWZZH-03 UltraSCSI hub.

Figure 3–2: DS-DWZZH-03 Front View

Differential symbol

ZK-1412U-AI

The differential symbol (and the lack of a single-ended symbol) indicates that all three connectors are differential.

3.6.1.2 DS-DWZZH-05 Description

The DS-DWZZH-05:

•Is a 5.25-inch StorageWorks building block (SBB)

•Has five Very High Density Cable Interconnect (VHDCI) differential SCSI bus connectors

•Uses SCSI ID 7 whether or not fair arbitration mode is enabled. Therefore, you cannot use SCSI ID 7 on the member systems’ SCSI bus adapter.

The following section describes how to prepare the DS-DWZZH-05 UltraSCSI hub for use on a shared SCSI bus in more detail.

3.6.1.2.1 DS-DWZZH-05 Configuration Guidelines

The DS-DWZZH-05 UltraSCSI hub can be installed in:

•A StorageWorks UltraSCSI BA356 shelf (which has the required 180-watt power supply).

•A non-UltraSCSI BA356 that has been upgraded to the 180-watt power supply with the DS-BA35X-HH option.

3–10Shared SCSI Bus Requirements and Configurations Using UltraSCSI Hardware