Checking SCSI Bus Compatibility for HP A5159B Host Bus Adapters Installed In PA-RISC Based Systems

If the HP A5159B SCSI host bus adapter is installed in a supported
PA-RISC based system, use the SCSI command to display and select SCSI parameters.

The SCSI command is available from the boot menu displayed after the test station has booted (if autoboot is disabled). In the following illustration of the boot menu display, the SCSI command is emphasized with bold type:

Command                          Description
-------                          -----------
AUto [BOot|SEArch ON|OFF]        Display or set the specified flag
BOot [PRI|ALT|<path> <args>]     Boot from a specified path
BootTimer [time]                 Display or set boot delay time
CLEARPIM                         Clear PIM storage
CPUconfig [<proc>] [ON|OFF]      Configure/Deconfigure Processor
DEfault                          Set the sytem to defined values
DIsplay                          Display this menu
ForthMode                        Switch to the Forth OBP interface
IO                               List the I/O devices in the system
LS [<path>|flash]                List the boot or flash volume
OS [hpux|sppux]                  Display/Select Operating System
PASSword                         Set the Forth password
PAth [PRI|ALT|CON] [<path>]      Display or modify a path
PDT [CLEAR|DEBUG]                Display/clear Non-Volatile PDT state
PIM_info [cpu#] [HPMC|TOC|LPMC]  Display PIM of current or any CPU
RESET [hard|debug]               Force a reset of the system
RESTrict [ON|OFF]                Display/Select restricted access to Forth
SCSI [INIT|RATE] [bus slot val]  List/Set SCSI controller parms
SEArch [<path>]                  Search for boot devices
SECure [ON|OFF]                  Display or set secure boot mode
TIme [cn:yr:mo:dy:hr:mn[:ss]]    Display or set the real-time clock
VErsion                          Display the firmware versions

The SCSI Command

The SCSI command can be used to display and set SCSI bus parameters to make certain the SCSI adapter is compatible with the SCSI devices.

Displaying Transfer Rates

To use the SCSI command to display the SCSI transfer rate for an adapter, follow this syntax:

SCSI rate bus_number slot_number

where

bus_number

Specifies the number of the bus the adapter is installed on.

slot_number

Specifies the number of the slot the adapter is in.

For example:

• To display the SCSI transfer rate for the adapter installed on bus 5 slot 2, issue this command:

  SCSI rate 5 2

  The output could look something like this:

  PCI device /5.2 = no limit

• To list transfer rates for all bus and slot numbers, issue this command:

  SCSI rate

Setting Transfer Rates

To use the SCSI command to set the SCSI transfer rate for an adapter, follow this syntax:

SCSI rate bus_number slot_number rate

where

bus_number

Specifies the number of the bus the adapter is installed on.

slot_number

Specifies the number of the slot the adapter is in.

rate

Specifies the adapter's transfer rate:

• 0 (no limit)

• 10 (Fast SCSI)

• 20 (Ultra SCSI)

For example, to set the SCSI transfer rate for the adapter installed on bus 5 slot 2 to Fast SCSI and then display the results, issue these commands:

SCSI rate 5 2 10 SCSI rate 5 2

The output (of the second command) could look something like this:

PCI device /5.2 = fast SCSI

Displaying SCSI IDs

To use the SCSI command to display the initiator (SCSI) IDs for an adapter, follow this syntax:

SCSI init bus_number slot_number

where

bus_number

Specifies the number of the bus the adapter is installed on.

slot_number

Specifies the number of the slot the adapter is in.

For example:

• To display the SCSI ID for the adapter on bus 5 slot 2, issue this command:

  SCSI init 5 2

  The output could look something like this:

  PCI device /5.2 = 7

• To list the SCSI IDs for all bus and slot numbers, issue this command:

  SCSI init

Setting SCSI IDs

To use the SCSI command to set the initiator (SCSI) ID for an adapter, follow this syntax:

SCSI init bus_number slot_number ID_number

where

bus_number

Specifies the number of the bus the adapter is installed on.

slot_number

Specifies the number of the slot the adapter is in.

ID_num

Specifies the adapter's SCSI ID number.

For example, to set the SCSI ID for the adapter installed on bus 5 slot 2 to 6 and then display the results, issue these commands:

SCSI init 5 2 6 SCSI init 5 2

The output (of the second command) could look something like this:

PCI device /5.2 = 6