RA8000 and ESA12000 Storage Subsystems
1–34
387404-001
EK–SMCPR–UG. A01
1.11.2 Compaq Supported Expansion PVA Addresses
Compaq only supports PVA addresses 2 and 3 for expansion enclosures. Figure 1-20
defines the SBB device IDs for these two settings of the PVA SCSI bus address switch,
respectively. The use of these addresses in combination depends on the number of
enclosures and possible addressing conflicts.
CAUTION
Compaq does not support any PVA address combination
not listed in Table 1-4.
Table 1–4 Expansion Enclosure Address Combinations
Enclosure
PVA Address Switch
Setting for Two BA370
Rack Mountable units
PVA Address Switch
Setting for Three BA370
Rack Mountable units
Master
0
0
First
Expansion Unit
2
2
Second
Expansion Unit
N/A
3
1.11.3 Non-Supported PVA SCSI Bus Addresses
Compaq does not support the following PVA SCSI bus addresses:
•
Address 1
This PVA address assigns array controller SCSI bus device addresses 6 and 7
to storage devices.
•
Address 4
This PVA address assigns addresses already assigned to the master enclosure.
•
Address 5
This PVA address assigns array controller SCSI bus device addresses 6 and 7
to storage devices.
•
Address 7
This PVA address assigns addresses already assigned to the master enclosure.