Expanding a volume in Failover Cluster Manager involves a few steps. Here is a general overview of the process:

  1. Open Failover Cluster Manager by searching for it in the Start menu or by running “cluadmin.msc” in the command prompt.
  2. In the left pane, select the cluster you want to work with. In the center pane, click on the “Storage” option.
  3. Select the volume you want to expand and right-click on it. Choose the “Expand” option from the context menu.
  4. In the “Expand Volume” wizard, you will be prompted to select the disk you want to use to expand the volume. Select the disk and click “Next”.
  5. In the next step, you can specify the amount of space you want to add to the volume. The maximum amount of space available for expansion will be displayed.
  6. Once you have specified the amount of space, click “Next” and review the summary of the changes.
  7. Click “Finish” to begin the expansion process. This may take some time, depending on the size of the volume and the amount of space being added.
  8. Once the process is complete, the volume will be expanded, and the new space will be available for use.

Note: The steps may vary slightly depending on the version of Failover Cluster Manager you are using and the configuration of your cluster. It is always recommended to have a full backup of your data before starting the expansion process.

Also, if the volume is a dynamic disk, it can be expanded online and the process will not require any downtime. But in case of a basic disk, it will require the volume to be taken offline, and the expansion process will require downtime.


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