7065Admin_Modify.fm Draft Document for Review August 30, 2007 12:59 am
228 IBM System Storage DS3000: Introduction and Implementation Guide
Figure 10-23 Modify FlashCopy Logical Drives
Disable FlashCopy Logical Drives
When you no longer need a FlashCopy logical drive, you might want to disable it. Enabled
FlashCopy logical drives impact storage system performance by the copy-on-write activity to
the associated FlashCopy Repository logical drive. Disabling a FlashCopy logical drive stops
the copy-on-write activity.
Disabling the FlashCopy logical drive rather than deleting it, will retain the object and its
associated repository. Then, when you need to create a different FlashCopy of the same base
logical drive, just use the re-create option to reuse the disabled FlashCopy. This takes less
time than creating a new one.
When you disable a FlashCopy logical drive, note that:
You cannot use that FlashCopy logical drive again until you use the re-create option on
that logical drive.
Only that FlashCopy logical drive is disabled. All other FlashCopy logical drives remain
functional.
If you do not intend to ever re-create a FlashCopy, you can delete that FlashCopy logical
drive (10.3.2, “Delete Logical Drives” on page 221) instead of disabling it.
To disable a FlashCopy logical drive follow these steps:
1. Click Disable FlashCopy Logical Drives to open the associated window (Figure 10-24).
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