VERITAS Volume Manager 3.1 Administrator's Guide

Volume Manager Operations
Volume Manager Task Monitor
Chapter 3 93
Volume Manager Task Monitor
The Volume Manager Task Monitor tracks the progress of system
recovery by monitoring task creation, maintenance, and completion. The
Task Monitor allows you to monitor task progress and to modify
characteristics of tasks, such as pausing and recovery rate (for example,
to reduce the impact on system performance). You can also monitor and
modify the progress of the Online Relayout feature.
Task Monitor Options
Command line option (-t) allows you to specify a task tag for any task.
You can use the Task Monitor option with the following utilities:
vxplex, vxsd, vxvol, vxrecover, vxreattach, vxresize, vxassist, and
vxevac
Task monitor option -t takes the following form:
# utility [-t tasktag ] ...
where:
utility —Volume Manager utilities that support the -t option.
tasktag —Assigns the given task tag to any tasks created by the utility.
All tasks related to this operation are identified as a group.
For example, to execute a vxrecover command and track all resulting
tasks as a group, specify a task tag to the vxrecover command, as
follows:
# vxrecover -t myrecovery -b disk05
The vxrecover command creates a task to track all recovery jobs. To
establish the task tag grouping, the vxrecover command specifies the
tag to all utilities that it calls. Additionally, to establish a parent-child
task relationship to any tasks those utilities execute, the vxrecover
command passes its own task ID to those utilities.
For more information about the utilities, see their respective manual
pages.