4 CLI commands and utilities

Using its CLI and command-line utilities, HP 3PAR Cluster Extension can be integrated with almost any cluster software.

CLI commands

The HP 3PAR Cluster Extension CLI command clx3PARrun can be:

•Used as a standalone utility

•Integrated into any cluster software or custom application

clx3PARrun

Description

Use clx3PARrun to manually prepare the application service's

 

disk set before an existing application service start procedure is

 

invoked. You can use clx3PARrun in custom solutions and startup

 

scripts.

 

 

When using clx3PARrun, the status of the associated volume

 

group is checked to ensure that access to the virtual volume(s) will

 

occur under data consistency and concurrency situations only.

 

You must invoke clx3PARrun before the application service disk

 

set can be activated; it is considered an online-only program.

 

However, the CLI features provide the same disaster recovery

 

features as the integrated versions of HP 3PAR Cluster Extension.

Syntax

clx3PARrun [–version][–forceflag]app_name

Operands

–version

Displays the HP 3PAR Cluster Extension version

 

–forceflag

Force startup

 

app_name Application name configured in the UCF.cfg file

Example 1

This example assumes you have defined an APPLICATION tag

 

named my-exchangein the UCF.cfg file, and have specified all

 

necessary objects, including the RCVolumeGroupA and

 

RCVolumeGroupB objects, to map the Remote Copy volume group

 

to the application service my-exchange. HP 3PAR Cluster Extension

 

will check the virtual volume set mapped to the application service

 

my-exchange, run the necessary failover procedure, and generate

 

a return code.

 

 

# clx3PARrun my-exchange

Example 2

This example assumes you have defined an APPLICATION tag

 

named my-exchangein the UCF.cfg file and have specified all

 

necessary objects, including the RCVolumeGroupA and

RCVolumeGroupB objects, to map the Remote Copy volume group to the application service my-exchange. HP 3PAR Cluster Extension will check the virtual volume set mapped to the application service my-exchange, and run the necessary failover procedure to enable read/write access to the virtual volumes.

# clx3PARrun -forceflag my-exchange

CLI commands 55