User`s guide

4-56 AlphaServer DS20 User’s Guide
password
Sets or clears the console password stored in NVRAM.
The syntax is:
set password
The password is not an argument to the set password command; the console prompts
the user for the string, which must be between 15 and 30 characters.
pci_parity
Disables or enables parity checking on the PCI bus.
Some PCI devices do not implement PCI parity checking, and some have a parity-
generating scheme in which the parity is sometimes incorrect or is not fully compliant
with the PCI specification. A side effect of this aberrant behavior is that superfluous
PCI parity errors are reported by the host PCI bridge. In such cases, the device can be
used as long as parity is not checked; disabling PCI parity checking prevents false
parity errors that can cause system problems.
The syntax is:
set pci_parity value
The options for value are:
on (default) Enables PCI parity checking.
off Disables PCI parity checking.
pk*0_fast
Enables fast SCSI to perform in either standard or fast mode. If the system has at least
one fast SCSI device, set the default controller speed to fast SCSI (1). Devices on a
controller that connects to both standard and fast SCSI devices will perform at the
appropriate rate for the device. If the system has no fast SCSI devices, set the default
controller speed to standard SCSI (0). If a fast SCSI device is on a controller set to
standard, it will perform in standard mode.
The syntax is:
set pk*0_fast scsi_speed
The options for scsi_speed are:
0 The controller is in standard SCSI mode.
1 (default) The controller is in fast SCSI mode.