Table9–2: Hardware Components Used forConfiguration Shown in Figure
9–11
Callout Number Description
1BN21W-0B Y cable
2H879-AA HD68 terminator
3BN38C (or BN38D) cablea
4H8861-AA VHDCI trilink connector
5BN37A cablea
aThemaximum combined lengthof the BN38C (or BN38D) and BN37A cables onone SCSI bus segment
mustnot exceed 25meters.
9.4.3 Cabling a Non-UltraSCSI RAID Array Controller to an ExternallyTerminated Shared SCSI Bus
A RAID array controller provides high performance, high availability, and
high connectivity access to SCSI devices through the shared SCSI buses.
Before you connect a RAID controller to a shared SCSI bus, you must install
and configure the disks that the controller will use, and ensure that the
controller has a unique SCSI ID on the shared bus.
Youcan configure the HSZ20, HSZ40, and HSZ50 RAID array controllers
with one to four SCSI IDs.
Because the HSZ20, HSZ40, and HSZ50 have a wide differential connection
onthe host side, youconnect them to one of the following differential devices:
•KZPSA-BB host bus adapter
•KZPBA-CB host bus adapter
•Another HSZ20, HSZ40, or HSZ50
______________________ Note _______________________
The HSZ20, HSZ40, and HSZ50 cannot operate at UltraSCSI
speeds when used with the KZPBA-CB.
Youcan also use a DS-DWZZH-03 or DS-DWZZH-05 UltraSCSI
hub with one of these RAID array controllers and either the
KZPSA-BB or KZPBA-CB host bus adapters. UltraSCSI cables
are required to make the connection to the hub. UltraSCSI speed
is not supported with these RAID array controllers when used
with a hub and the KZPBA-CB host bus adapter.
9–24 ConfigurationsUsing ExternalTermination or Radial Connections toNon-UltraSCSI Devices