Volume removal

You can remove a volume from a storage pool. During this process, any files that are stored in the volume are automatically redistributed among the remaining volumes in the same storage pool. When you remove a volume, data is moved and committed one logical partition at a time. If a failure occurs while moving the contents of a volume, you can reissue the command, and the move process continues where it stopped earlier.

If you forcefully remove a volume containing part of a file's data, that part of the file data will be lost, creating a hole in the file. You will receive an I/O error if you attempt to read or write that part of the file; However, you can still access the parts of the file on other volumes. If part of a FlashCopy® image is lost, the entire FlashCopy image is marked as damaged and becomes irrevertible. However, you can still access the unaffected parts of the FlashCopy image using ordinary file operations such as copy. If you attempt to back up a file with a hole, the behavior depends on your backup application. It might back up the file up to the point of the hole, or it might abort the entire process.

Remember: There is no automatic recovery process when you specify the force option. All files are removed immediately without being copied. Before removing a volume with the force option, use the reportvolfiles command to display a list of files on the volume. The files for which failures occur are also listed in the cluster message log, and you can restore those files manually.

When you remove a volume from a storage pool, its label is removed, and the volume becomes a logical unit number (LUN) again.

Parent topic: Volumes

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