FlashCopy

FlashCopy^® is an optional feature that makes an instant, point-in-time copy from a source volume on a storage unit to a target volume on the same storage unit. Use the tasks provided to help you create, monitor, and manage your FlashCopy operations.

The FlashCopy feature is accessible only from the Real-time Manager; the FlashCopy feature is not accessible from the Simulated Manager.

• FlashCopy — Main page
  Use this page to create new FlashCopy relationships between volume pairs or to modify, delete, or view information about existing FlashCopy relationships between volume pairs. After you create a FlashCopy relationship, you can read and write to both the source and the target volumes.
• Create FlashCopy relationship — Define relationship types
  Use this page to define the type of FlashCopy relationship that you want to create.
• Create FlashCopy relationship — Select source volumes
  Use this page to select source volumes for a single FlashCopy relationship (a single target volume for each source volume) or for a multiple relationship FlashCopy (a single source volume and multiple target volumes). You can select one or more source volumes.
• Create FlashCopy relationship — Select target volumes for the 1:1 relationship
  When you select "A single source with a single target" on the Define relationship type page to create one-to-one FlashCopy relationships, you must select the same number of target volumes as you selected source volumes. Use this page to select target volumes to participate in a one-to-one FlashCopy relationship.
• Create FlashCopy relationship — Select target volumes for the 1:n relationships
  Use this page to select target volumes for multiple FlashCopy relationships.
• Create FlashCopy relationship — Select common options
  After you select source and target volumes for FlashCopy relationships, you can select one or more copy options for the FlashCopy volume pairs. Use this page to select one or more copy options for the volumes that are participating in FlashCopy relationships.
• Create FlashCopy relationship — Verification
  Use this page to verify the characteristics of the volume pairs and the copy options for the FlashCopy relationships that you want to create.
• Initiate background copy — Confirm
  Use this page to confirm the volume pairs on which to initiate a FlashCopy background copy.
• Refresh target volume — Select copy options
  Use this page to select which copy options are used to refresh the target volumes of selected FlashCopy volume pairs. Only changed data is copied from the source to target volume when subsequent FlashCopy operations are run.
• Reverse relationship — Select copy options
  Use this page to select one or more copy options to reverse the FlashCopy relationship. That is, the original source volume is now the target, while the original target volume becomes the source of the FlashCopy relationship.
• FlashCopy revertible — Select common options
  Use this page to select copy options when restarting an existing, persistent FlashCopy relationship that was created without the change recording feature enabled.
• FlashCopy revertible — Select advanced options
  Use this page to select advanced copy options to use when you want to allow a target volume to be restored in an existing, persistent FlashCopy relationship that was created without the revertible feature enabled.
• FlashCopy revertible — Verification
  Use this page to verify the characteristics of the volume pair and the desired options to use when restarting an existing, persistent FlashCopy relationship
• Commit changes — Confirm
  Use this page to confirm which FlashCopy target volume will be updated with data from its source volume when data is not consistent between the volume pair.
• Discard changes — Confirm
  Use this page to confirm the FlashCopy volume pair on which updates to the target volume of the volume pair will be discarded and restored to a previous FlashCopy relationship. The FlashCopy relationship is not deleted until changes are discarded.
• FlashCopy properties — General
  Use this page to view information about existing FlashCopy relationships, including information about source and target volumes.
• FlashCopy properties — Out-of-sync tracks
  Use this page to view information about the out-of-synchronous tracks on the source and target volumes in existing FlashCopy relationships.