3X-KZPEA Release Notes, March 2005

Note: For shared bus configuration only, please disregard the “SCSI Termination” paragraph under

section 2.1.2 of the KZPEA User Guide which states that the adapter can only be located at the end

of the bus, requiring jumpers J3 and J5 to be installed.

Termination will be supplied by the storage enclosure at one end of the bus and by an external terminator at the

other end of the bus.

Note: When configuring the KZPEA in a shared SCSI bus configuration which will contain a boot, cluster,

quorum, or dump disk, you must connect the shared cable to Channel A of the KZPEA adapters on both

nodes if using an SRM Console Revision less than V6.6. Console Revisions of V6.6 and greater do not

have this restriction.

Required Components for Shared SCSI Bus Support (per shared bus) for Configuration A

2-5-2 P/N Qty. Description

3X-BN55A-01 (Rev B01) 2 Y-Cable P/N: 17-05144-01, and black Connector Plug P/N:

12-10015-01

3X-H32CT-AA 1 External LVD Ultra 160 Terminator P/N: 12-56536-01

Note: Included in the 3X-BN55A-01 Y-cable kit is an HD68 SCSI black connector plug (P/N: 12-10015-

01) that MUST be installed in the internal SCSI connector of the KZPEA for proper shared bus

operation. If only one of the two channels are to be used in a shared bus configuration make sure

that the connector plug is attached to the correct internal SCSI connector associated with that bus

for each KZPEA adapter.

SCSI Cabling Considerations for Shared Bus Support with Configuration A

The maximum LVD bus length for KZPEA shared SCSI bus support is 12 meters (39 feet). This includes

the combined length of the two y-cables and the two SCSI cables as well as KZPEA and shelf internal bus

lengths. The y-cables are 0.7 meters each. The following cables are supported in the shared bus

configuration:

2-5-2 P/N 6-3 P/N Cable P/N Description

3X-BC56J-02 341174-B21 313374-001 6 foot VHDCI-to-VHDCI

3X-BC56J-03 341175-B21 313374-002 12 foot VHDCI-to-VHDCI

3X-BC56J-04 164604-B21 313374-004 24 foot VHDCI-to-VHDCI

The maximum allowable SCSI bus length for this configuration is achieved by using a 6 foot 313374-001

cable and a 24 foot 313374-004 cable.

Figure 1 is an example of a Configuration A KZPEA shared SCSI bus configuration.