Compaq AlphaServer DS20E Reference Manual page 268

11-62 DS20E Reference Guide
Part Number: ER-K8F6W-UA .A01 File Name: l-ch11 Using the SRM Console.doc Last Saved On: 10/4/99 2:05 PM
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.
The controller is in fast SCSI mode.
1 (default)
pk*0_host_id
Sets the controller host bus node ID to a value between 0 and 7.
Each SCSI bus in the system requires a controller. Buses can theoretically
support up to eight devices; however, the eighth device must always be a
controller. Each device on the bus, including the controller, must have a
unique ID, which is a number between 0 and 7. This is the bus node ID
number.
On each bus, the default bus node ID for the controller is set to 7. You do not
need to change the controller bus node ID unless you place two or more
controllers on the same bus.
To list the controllers on your system, enter the command show device. SCSI
devices begin with the letters "pk" (for example, pka0). The third letter is the
adapter ID for the controller. When entering the command set pk*0_host_id,
replace the asterisk with the adapter ID letter.
The syntax is:
set pk*_host_id scsi_node_id
The value for scsi_node_id is the bus node ID, a number from 0 to 7.
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Writer: Robert Young Project: AlphaServer DS20E System Comments: