Starting a FlashCopy mapping–Prepare and start

You can use the Starting a FlashCopy® Mapping–Prepare and Start panel in the SAN Volume Controller Console to prepare and start the selected FlashCopy mapping.

You need to do this first.

Before a FlashCopy mapping is started it must be in the Prepared state. Preparing the FlashCopy mapping flushes the cache of any data that is destined for the source VDisk and forces the cache into the write-through mode until the mapping is started. If you have selected a FlashCopy mapping to start and it is not yet in the prepared state, the SAN Volume Controller Console displays this panel with the option to prepare and start the FlashCopy mapping.

Complete the following steps to start a FlashCopy mapping:

Click Manage Copy Services > FlashCopy Mappings in the portfolio. The Viewing FlashCopy Mappings panel is displayed.
Select the FlashCopy mapping that you want to start and select Start a Mapping from the task list, and click Go. If the selected FlashCopy mapping has not been prepared, the Starting FlashCopy Mapping–Prepare and Start panel displays.
Click Prepare and Start. The Viewing FlashCopy Mappings panel is displayed.

In addition, the SAN Volume Controller cluster detects if the selected FlashCopy mapping is for restoring data only. If the FlashCopy mapping is for restoring data only, then the Start FlashCopy Mapping–Restore panel displays. This panel indicates that the selected FlashCopy mapping has a target virtual disk (VDisk) that is a source VDisk in another active FlashCopy mapping.