Configuring A Pci Nvram Module - Compaq AlphaServer DS20E Reference Manual

7.19 Configuring a PCI NVRAM Module

The prcache command is used to support Tru64 UNIX systems
equipped with a Prestoserve PCI NVRAM module.
Example 7–17 Prcache
P00>>> prcache -f
PCI NVRAM Disk Cache: passed
Size: 4MB
PCI Memory Address: 40000000
System ID: 12000000
State: - not valid
Battery Status: good (Charging)
Battery Disconnect Circuit Status: enabled
P00>>> prcache -z
This command will zero the PCI NVRAM Disk Cache
Do you really want to continue [Y/N] ? : y
clearing disk cache
P00>>>
The prcache command, with the options listed below, checks PCI NVRAM
configuration and battery status, clears data from the NVRAM module, and
disables the NVRAM battery disconnect circuit. This command is used only with
Tru64 UNIX systems. The syntax is:
prcache -{f,z,u}
Checks configuration and battery status.
-f
-z
Clears valid data; writes zeros to memory.
-u
Disables the NVRAM battery disconnect circuit.
7-40 DS20E Reference Guide
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