Administering volumes

Performing online relayout

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Viewing the status of a relayout

Online relayout operations take some time to perform. You can use the vxrelayout command to obtain information about the status of a relayout operation. For example, the command:

#vxrelayout -g mydg status vol04 might display output similar to this:

STRIPED, columns=5, stwidth=128--> STRIPED, columns=6, stwidth=128

Relayout running, 68.58% completed.

In this example, the reconfiguration of a striped volume from 5 to 6 columns is in progress, and is just over two-thirds complete.

See the vxrelayout(1M) manual page for more information about this command.

If you specified a task tag to vxassist when you started the relayout, you can use this tag with the vxtask command to monitor the progress of the relayout. For example, to monitor the task tagged as myconv, enter:

#vxtask monitor myconv

Controlling the progress of a relayout

You can use the vxtask command to stop (pause) the relayout temporarily, or to cancel it altogether (abort). If you specified a task tag to vxassist when you started the relayout, you can use this tag to specify the task to vxtask. For example, to pause the relayout operation tagged as myconv, enter:

#vxtask pause myconv

To resume the operation, use the vxtask command:

#vxtask resume myconv

For relayout operations that have not been stopped using the vxtask pause command (for example, the vxtask abort command was used to stop the task, the transformation process died, or there was an I/O failure), resume the relayout by specifying the start keyword to vxrelayout, as shown here:

#vxrelayout -g mydg -o bg start vol04

Note: If you use the vxrelayout start command to restart a relayout that you previously suspended using the vxtask pause command, a new untagged task is created to complete the operation. You cannot then use the original task tag to control the relayout.

The -o bg option restarts the relayout in the background. You can also specify the slow and iosize option modifiers to control the speed of the relayout and the size of each region that is copied. For example, the following command

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HP Veritas Volume Manager 5.0 -UX 11i v3 manual Viewing the status of a relayout, Controlling the progress of a relayout