Technical data

The other end of the SCSI bus segment is terminated by the KZPSA-BB
or KZPBA-CB onboard termination resistor SIPs, or a trilink
connector/terminator combination installed on the HSZ40 or HSZ50.
The KZPSA-BB PCI-to-SCSI bus adapter:
• Is installed in a PCI slot of the supported member system (see
Section 2.3.2).
• Is a fast, wide differential adapter with only a single port, so only one
differential shared SCSI bus can be connected to a KZPSA-BB adapter.
• Operates at fast or slow speed and is compatible with narrow or wide
SCSI. The fast speed is 10 MB/sec for a narrow SCSI bus and 20 MB/sec
for a wide SCSI bus. The KZPSA-BB must be set to fast speed for
TruCluster Server.
_____________________ Note _____________________
You may have problems if the member system supports the
bus_probe_algorithm console variable and it is not set to
new. See Section 2.3.2.
The KZPBA-CB UltraSCSI host adapter:
• Is a high-performance PCI option connecting the PCI-based host system
to the devices on a 16-bit, ultrawide differential SCSI bus.
• Is a single-channel, ultrawide differential adapter.
• Operates at the following speeds:
– 5 MB/sec narrow SCSI at slow speed
– 10 MB/sec narrow SCSI at fast speed
– 20 MB/sec wide differential SCSI
– 40 MB/sec wide differential UltraSCSI
______________________ Note _______________________
Even though the KZPBA-CB is an UltraSCSI device, it has an
HD68 connector.
Use the steps in Table 9–2 to set up a KZPSA-BB or KZPBA-CB host bus
adapter for a TruCluster Server cluster that uses radial connection to a
DWZZH UltraSCSI hub with an HSZ40 or HSZ50 RAID array controller.
9–4 Configuring Systems for External Termination or Radial Connections to Non-UltraSCSI Devices