StorageWorks ESA10000, Руководство пользователя

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RA7000 and ESA10000 Storage Subsystems
1–30 EK–SMCPP–UG. A01
1.11 Setting the PVA SCSI Address
The SCSI bus address switch on the front of the PVA module (see Figure 1-19)
controls the SCSI address (device ID) of each storage device in the enclosure.
The following configuration rules (restrictions) apply in establishing the PVA
SCSI bus address:
1. The master PVA address is always 0.
2. There is only one master PVA in any subsystem installation.
3. In an expansion subsystem, no two enclosures can have the same address.
4. DIGITAL does not support any PVA address that assigns SCSI bus device
addresses 6 or 7 to any storage device.
5. DIGITAL does not support any combination of PVA addresses that assign the
same SCSI bus device address to more than one device on any SCSI bus.
Figure 1–19 PVA SCSI Address Switch
DECREASE
SWITCH
INCREASE
SWITCH
To decrease the configuration number:
Press the upper switch to step the address down one address at a time
(decrement) until the preferred configuration number is displayed.
To increase the configuration number:
Press the lower switch to step the address up one address at a time (increment)
until the preferred configuration number is displayed.