Learn About FlashCopy Logical Drive Maintenance

When you create a , you specify where to create the , its capacity, its warning, and other parameters. The capacity of the flashcopy repository logical drive is created as a percentage of the and contains the data. The storage management software provides a warning message when your flashcopy repository logical drive exceeds the threshold level.

Keep these guidelines in mind when you maintain flashcopy logical drives:

Setting Options for the FlashCopy Repository Logical drive

The default capacity of a flashcopy repository logical drive is set to 20 percent of the base logical drive if enough free capacity exists to create a flashcopy repository of this size. The default threshold level for the flashcopy repository logical drive is set to 50 percent. If you are not sure how large to make the flashcopy repository logical drive or how high to set the full warning for the flashcopy repository logical drive, accept the default settings. You can estimate later how quickly the capacity of the flashcopy repository logical drive is being used. For more information, refer to the Learn About Estimating FlashCopy Repository Logical Drive Life Expectancy online help topic.

Failure Settings for FlashCopy Logical Drives

Keep these guidelines in mind when you work with flashcopy logical drives:

To view the current failure settings, perform these steps:

  1. In the Logical pane of the Logical/Physical tab, select a flashcopy repository logical drive.
  2. Select Logical Drive >> Properties .
  3. To view the currently defined settings, select the Capacity tab.

If the flashcopy repository logical drive is set to fail the flashcopy logical drive when it becomes full, its data is not recoverable. You cannot access the flashcopy. The only available option (if this situation occurs) is to either delete the flashcopy logical drive or re-create the flashcopy logical drive to create a new point-in-time image. For more information, refer to the Increasing the Capacity of a FlashCopy Repository Logical Drive online help topic.

If the flashcopy repository logical drive is set to fail writes to the base logical drive, the data is recoverable. However, you must increase the capacity of the flashcopy repository logical drive before writes to the base logical drive are not rejected.

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