General description

KZPBA is a PCI SCSI adapter based on the QLogic ISP1040 Fast Wide SCSI adapter chip for HP Alpha.

In CHARON-AXP environment it supports up to 120 disks and tapes.

For systems with more than 16 heavily used units it is recommended to configure several virtual KZPBA PCI SCSI adapters and distribute the heavily loaded units evenly between the adapters.

Loading KZPBA storage adapter

Syntax for loading KZPBA storage adapter:

load KZPBA <name>

Example:

load KZPBA PKA

In AlphaStation 400 configuration use the following syntax for KZPBA storage adapter loading:

The adapter instance name ("PKA" in the example above) is used then for parametrization, for example:

set PKA container[602]="/Mydisks/vms_distributive.vdisk"

The numbers in the square brackets represent SCSI ID and LUN of the devices on the virtual KZPBA SCSI bus.

They have the following format: XXYY, where:

Parameter	Range	Description

Parameter	Range	Description
XX	0..15	SCSI ID
YY	00..07	LUN

By default KZPBA adapter uses first available PCI slot. If instead some particular slot is needed, refer to this section for details of specific placement of PCI peripherals on CHARON-AXP PCI bus.

By default each loaded KZPBA SCSI PCI adapter has SCSI ID=7. This setting can be changed with "scsi_id" parameter, for example:

set PKA scsi_id=0

CHARON-AXP HP Alpha models may have one or two KZPBA adapters preloaded.

Configuration parameters

The KZPBA PCI SCSI adapter emulation has the following configuration parameters:

scsi_id

Parameter

scsi_id

Type

Numeric

Value

Specifies SCSI ID of KZPBA PCI SCSI Adapter in a range 0..7

By default the "scsi_id" configuration parameter is set to 7.

Example:

set PKA scsi_id=6

host, port

Parameter

host, port

Type

Text String

Value

These parameters are used in SCSI cluster configurations.

Parameter	Description
host	Specifies remote end-point (remote host name and, optionally, TCP/IP port on remote host) of SCSI connection between this KZPBA PCI SCSI adapter and remote KZPBA PCI SCSI adapter on some host.
port	Specifies local end-point (TCP/IP port on local host) of SCSI connection between this KZPBA PCI SCSI adapter and remote KZPBA PCI SCSI adapter on some host.

By default the "host" and "port" configuration options are not specified.

Syntax:

port[connection-number]=<local port> host[connection-number]="<host-name{:tcpip-port-no}>"

where: connection-number = remote_scsi_id * 100 + lun_id

Example - 2 members cluster on the same Charon server - Node 1:

set PKA scsi_id=6
set PKA port[700]=11067 host[700]="localhost:11076"

Example - 2 members cluster on the same Charon server - Node 2:

set PKA scsi_id=7
set PKA port[600]=11076 host[600]="localhost:11067"

KZPBA PCI SCSI adapter

Table of Contents

General description

Loading KZPBA storage adapter

Configuration parameters

scsi_id

host, port