FlashCopy

This section contains a list of DS Storage Manager tasks that help you create, monitor, and manage your FlashCopy^® operations.

• Applying the FlashCopy Revertible option to existing FlashCopy relationships
  Complete this task to apply the FlashCopy Revertible option 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 apply the FlashCopy Revertible option to a FlashCopy relationship that is already revertible.
• 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.
• 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 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.
• Creating a persistent FlashCopy relationship
  Complete this task to create a persistent FlashCopy relationship that remains even after the FlashCopy operation completes.
• 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.
• Creating multiple data copies using a single source volume
  Complete this task to create multiple data copies of a single source volume.
• Deleting FlashCopy relationships
  Complete this task to delete FlashCopy relationships between a source volume and target 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.
• Providing data consistency using FlashCopy consistency groups
  You can establish a consistency group by using the freeze option of the mkflash and resyncflash DS CLI commands. This function ensures consistency between multiple FlashCopy volumes.
• Starting a background copy of a FlashCopy relationship
  Complete this task to start a background copy of a FlashCopy volume pair that allows data to be copied from the source volume to the target volume.
• Resynchronizing a FlashCopy relationship
  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.
• 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.
• Resetting FlashCopy consistency groups
  The unfreezeflash DS CLI command resets an existing FlashCopy consistency group that was previously established when the mkflash or resyncflash DS CLI command was issued using the freeze option. The unfreezeflash command resets the consistency group of all FlashCopy volumes that was established or resynchronized using the freeze option.
• Reversing a FlashCopy relationship
  Complete this task to reverse the direction of a FlashCopy volume pair.
• Viewing information about FlashCopy relationships
  Complete this task to view status information about each existing FlashCopy relationship.