Working With Enhanced Flashcopy Images Premium Feature; Creating An Enhanced Flashcopy Image Group - IBM System Storage DS3000 Programming Manual

v DCS3700 storage subsystem with Performance Module Controllers has a maximum 2048 allowable
number of Enhanced FlashCopy images.
v You can schedule an Enhanced FlashCopy image to be created for a consistency group, which causes
consistent Enhanced FlashCopy images to be created for all member logical drives.
v You can perform a Rollback operation for a consistency group.

Working With Enhanced FlashCopy Images Premium Feature

"Creating an Enhanced FlashCopy Image" on page 6-8
"Canceling a Pending Enhanced FlashCopy Image" on page 6-9
"Creating an Enhanced FlashCopy Image Schedule" on page 6-9
"Starting, Stopping, and Resuming an Enhanced FlashCopy Image Rollback" on page 6-18

"Creating an Enhanced FlashCopy Image Group"

"Deleting an Enhanced FlashCopy Image Group" on page 6-8
"Deleting an Enhanced FlashCopy Image Group (with options)" on page 6-11
"Creating an Enhanced FlashCopy Image Logical drive" on page 6-14
"Deleting an Enhanced FlashCopy Image Logical drive" on page 6-16
"Changing the Size of a Repository Logical drive" on page 6-16
"Restarting a Consistency Group Enhanced FlashCopy Image Logical drive" on page 6-15
"Creating a Consistency Group Enhanced FlashCopy logical drives" on page 6-12
"Deleting a Consistency Group Enhanced FlashCopy Image" on page 6-14
Creating an Enhanced FlashCopy Image Group
Before you can create any Enhanced FlashCopy images you must first create an Enhanced FlashCopy
group and the associated repository logical drive.
To create a new Enhanced FlashCopy group use the create enhancedFlashCopyGroup command. This
command creates a new Enhanced FlashCopy group that is associated with a specific source logical drive.
You also create a relationship to a repository logical drive by one of these methods:
v Use an existing repository logical drive
v Create a new repository logical drive in an subsystem
v Create a new repository logical drive in a disk pool
To create a new repository logical drive, you identify either an existing subsystem or an existing disk
pool and define the size (capacity) for the repository logical drive. You define the size by entering either a
percentage of the base logical drive or a specific size that you want to reserve for the repository logical
drive.
This example shows a basic command in which a new Enhanced FlashCopy group is being created and
associated with an existing repository logical drive:
Chapter 6. Using the Enhanced FlashCopy Images Premium Feature
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