Reusing FlashCopy Logical Drives: Additional Information for UNIX – Regular Disks

Prerequisites:

Use this procedure when reusing on a running one of these UNIX-based operating systems:

Typically, after a flashcopy logical drivehas been created, it is disabled until a new point-in-time image of the same is required. Use this procedure to create a new point-in-time image of the same base logical drive.

  1. Stop all I/O activity to the base logical drive (or data transfer suspended) to make sure that an accurate point-in-time image of the base logical drive is captured.
  2. Unmount the base logical drive:
  3. In the storage management software, re-create the flashcopy logical drive by using one of these methods.

    recreateSnapshot volume
    

    For command reference information about re-creating a flashcopy logical drive, refer to the online help topics in the Enterprise Management Window.

  4. Remount the base logical drive to its original host.
  5. Mount the flashcopy logical drive to its intended host.
  6. If I/O activity to the base logical drive was stopped or data transfer was suspended, resume I/O activity to the base logical drive at this time (or reenable data transfer).
  7. Use the flashcopy logical drive with your backup application (or with another application).
  8. Unmount the flashcopy logical drive.
  9. When the use of the flashcopy logical drive is no longer required, disable the flashcopy logical drive.

    If you disable the flashcopy logical drive instead of deleting it, you can retain the flashcopy logical drive and its associated . Then, when you need to create a different flashcopy of the same base logical drive, you can re-create the disabled flashcopy logical drive. This action takes less time than creating a new flashcopy logical drive and stops any reduction in performance that might occur if the flashcopy logical drive remains available.

    For more information, refer to the Disabling a FlashCopy Logical Drive online help topic and the Re-creating a FlashCopy Logical Drive online help topic.

    For command reference information about disabling and re-creating a flashcopy logical drive, refer to the online help topics in the Enterprise Management Window.

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