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299Administering volumes
Performing online relayout
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