FlashCopy functions

This topic provides a list of tasks that help you create, monitor, and manage your FlashCopy operations using DS CLI commands.

• Creating a FlashCopy relationship
  Complete this task to create a FlashCopy^® relationship between a source and target volume that enables a point-in-time copy of a source volume onto a target volume.
• Creating a persistent FlashCopy relationship
  Complete this task to create a persistent FlashCopy relationship that remains even after the FlashCopy operation completes.
• Viewing information about FlashCopy relationships
  Complete this task to view status information about each existing FlashCopy relationship.
• Deleting FlashCopy relationships
  Complete this task to delete FlashCopy relationships.
• Creating remote FlashCopy transactions
  Complete this task to create a remote FlashCopy (inband FlashCopy on the ESS 2105) at a target (remote) site using remote FlashCopy commands.
• Resynchronizing FlashCopy relationships
  Complete this task to resynchronize (apply incremental changes on the source volume to) a FlashCopy target volume. After the initial FlashCopy operation, only data that has changed on the source volume since the last resynchronization operation was performed is copied to the target volume.
• Reversing a FlashCopy relationship
  Complete this task to reverse the direction of a FlashCopy volume pair.
• Applying the FlashCopy revertible option to existing FlashCopy relationships
  Complete this task to prepare for disaster recovery of a FlashCopy consistency group in a Global Mirror configuration. Issue the setflashrevertible command to a FlashCopy relationship with the persistent, change recording, target write inhibit, and no copy options enabled, and the revertible option disabled. It is not valid to issue the setflashrevertible command to a FlashCopy relationship that is already revertible.
• Starting a background copy of a FlashCopy relationship
  Complete this task to create a FlashCopy volume pair that allows data to be copied from the source volume to the target volume.
• Preventing write operations on FlashCopy target volumes
  Complete this task to prevent (inhibit) host write operations on FlashCopy target volumes. By inhibiting writes on the target volume, you ensure that the target is an uncorrupted incremental backup.
• Creating a FlashCopy target volume on an existing Metro Mirror source volume
  Complete this task to create a FlashCopy target volume on an existing Metro Mirror source volume.
• Discarding changes to FlashCopy target volumes
  Complete this task to discard changes to FlashCopy target volumes to form a consistency group on the target volumes as part of a disaster recovery process.
• Committing data to FlashCopy target volumes
  Complete this task to commit data to FlashCopy target volumes to form a consistency group on the target volumes as part of a disaster recovery process.