HP Array Controller HSG V8.7 Software - Manual (Page 60)

2–6 HSG80 User’s Guide
Setting the PVA Module ID Switch
The Power, Verification, and Addressing (PVA) module provides
unique addresses to extended subsystems. Each BA370 rack-mountable
enclosure in an extended subsystem must have its own PVA ID. Use
PVA ID 0 for the enclosure that contains the array controllers. Use PVA
IDs 2 and 3 for the additional enclosures. Figure 2–1 illustrates the
PVA settings in an extended subsystem.
See the documentation that accompanied your enclosure for more
details about the PVA and its settings.
Figure 2–1 SCSI Target ID Numbers on the Controller Device Bus and PVA Settings in an
Extended Subsytem
CXO5806B
Controller A
Controller B
EMU PVA 0
Cache B Cache A
SCSI Target ID = 3
SCSI Target ID = 2
SCSI Target ID = 1
SCSI Target ID = 0
First Expansion
Enclosure
Master
Enclosure
Second Expansion
Enclosure
EMU PVA 3
SCSI Target ID = 15
SCSI Target ID = 14
SCSI Target ID = 13
SCSI Target ID = 12
OTE: SCSI target IDs 4 and 5 are reserved. IDs 6 and 7 are used by the controllers.
EMU PVA 2
SCSI Target ID = 11
SCSI Target ID = 10
SCSI Target ID = 9
SCSI Target ID = 8