Technical data

10.4.2.1 Cabling a Single BA350 Storage Shelf
To cable a single BA350 storage shelf into a cluster, install a BN21K, BN21L,
or 328215-00X HD68 cable between the BN21W-0B Y cable on the host bus
adapter of each system and the H885-AA trilink connector installed on the
DWZZA-VA installed in slot 0 of the BA350. See the left-half of Figure 10–9.
10.4.2.2 Cabling a Single BA356 Storage Shelf
To cable a single BA356 storage shelf into a cluster, install a BN21K, BN21L,
or 328215-00X HD68 cable between the BN21W-0B Y cable on the host bus
adapter of each system and the H885-AA trilink connector installed on the
DWZZB-VW installed in slot 0 of the BA356. See Figure 10–10.
10.4.2.3 Cabling a Single UltraSCSI BA356 Storage Shelf
To cable a single UltraSCSI BA356 storage shelf into a cluster, connect a
BN38C, BN38D, or combination of a BN38E-0B technology adapter cable
and a BN37A cable between the BN21W-0B Y cable on each system and
H8861-AA VHDCI trilink connector on the UltraSCSI BA356 personality
module. See Figure 10–11.
10.4.3 Connecting Storage Shelves Together
Section 10.4.1 covered the steps necessary to prepare the BA350, BA356, and
UltraSCSI BA356 storage shelves for use on a shared SCSI bus. However,
you will probably need more storage than one storage shelf can provide, so
you will need two storage shelves on the shared SCSI bus.
______________________ Note _______________________
Because the BA350 contains a narrow (8-bit), single-ended SCSI
bus, it only supports SCSI IDs 0 through 7. Therefore, a BA350
must be used with a BA356 or UltraSCSI BA356 if more than
five disks are required.
The following sections provide the steps needed to connect two storage
shelves and two member systems on a shared SCSI bus:
• BA350 and BA356 (Section 10.4.3.1)
• Two BA356s (Section 10.4.3.2)
• Two UltraSCSI BA356s (Section 10.4.3.3)
10–18 Configurations Using External Termination or Radial Connections to Non-UltraSCSI Devices