Understanding the Functions in the vvr.sh Script

This chapter describes how you can use the vvr.sh script to start, monitor, and stop the VVR RVG resource.

The package control scripts contain all the information necessary to run all the services in the package, monitor them during operation, respond to a failure, and halt the package when necessary. These scripts are modified to include information about VVR.

The vvr.sh script provides the functionality to manage and monitor VVR RVG resource. This script provides specific functions that enable you to perform the required tasks. The package control scripts use this functionality provided by the vvr.sh script to manage the VVR resources along with volume groups and disk groups.

Starting the RVG

The vvr.sh script provides a function vvr_activate_cmds that performs the following tasks for the specified disk groups:

• Starts all the VVR volumes under the RVG.
• Starts the SRL volume for the specified RVG.
• Recovers the RVGs and RLINKs within the specified disk groups.
• Starts the RVGs.

Usage

/opt/VRTSvrmcsg/vvr.sh [-r max_retry] activate DiskGroup(s)

Example

Monitoring the RVG

The vvr.sh script provides a function vvr_monitor_cmds that monitors the state of all the RVGs in the specified disk groups. It checks for the following RVG states:

• ENABLED / EMPTY
• ENABLED / ACTIVE

It also monitors the vradmind and in.vxrsyncd daemons.

Usage

An RVG is monitored for local access only. Replication is not monitored. The replication fails if the RVG is not in the ENABLED state.

Examples