IBM System Storage DS3000, Programming Manual

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The Enhanced FlashCopy logical drive repository must have the same T10PI and Quality of Service
(QoS) settings as the associated base logical drive. For example, if a base logical drive that is used for
an Enhanced FlashCopy logical drive is T10PI enabled, then each member logical drive in the
associated Enhanced FlashCopy logical drive repository must be T10PI enabled.
Example commands to create a consistency group Enhanced FlashCopy logical drive are as follows:
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To create consistency group Enhanced FlashCopy logical drive with read/write capability for Enhanced
FlashCopy consistency group
CG_001
using the newest Enhanced FlashCopy image for all members of
the Enhanced FlashCopy consistency group:
create cgEnhancedFlashCopyLogicalDrive
userLabel="cgEnhFCLDName3"
cgEnhancedFlashCopyImageID="CG_001:newest"
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To create consistency group Enhanced FlashCopy logical drive with read-only capability for Enhanced
FlashCopy consistency group
CG_001
using the Enhanced FlashCopy image with the creation order 6
for all members of the Enhanced FlashCopy consistency group:
create cgEnhancedFlashCopyLogicalDrive
userLabel="cgEnhFCLDName3"
cgEnhancedFlashCopyImageID="CG_001:6" readOnly
Note: To determine the creation order of the consistency group Enhanced FlashCopy image in an
Enhanced FlashCopy consistency group, right-click the consistency group Enhanced FlashCopy image
and select Properties in the pull-down menu. When the properties window opens, look for the value of
the
creation order
field.
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To create consistency group Enhanced FlashCopy logical drive with read/write capability for Enhanced
FlashCopy consistency group CG_001 using the oldest Enhanced FlashCopy image for only member
logical drive 1 of subsystem 0 and member logical drive 5 of disk pool Disk_Pool_1. Note that the "("
and ")" for the members field indicated that new repository logical drives will be created:
create cgEnhancedFlashCopyLogicalDrive
userLabel="cgEnhFCLDName4"
cgEnhancedFlashCopyImageID="CG_001:oldest"
members=("1:0" "5:Disk_Pool_1")
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To create the same thing as above, using the existing repository logical drives of
Repos_0113
in
subsystem 0 for member logical drive 1 and Repos_0112 for member logical drive 5 in disk pool
Disk_pool_1 , use the following command:
Note: The name of the existing repositories must be in double quotation marks '"' as shown
create cgEnhancedFlashCopyLogicalDrive
userLabel="cgEnhFCLDName4"
cgEnhancedFlashCopyImageID="CG_001:6"
members=("1":"repos_0113" "5":"repos_0112");
When you create an Enhanced FlashCopy image of a consistency group, the result is an Enhanced
FlashCopy image of every member logical drive of the consistency group. To create a consistency group
Enhanced FlashCopy image, use this command:
create cgEnhancedFlashCopyImage consistencyGroup="
consistencyGroupName"
When you enter this command you must give the consistency group Enhanced FlashCopy logical drive a
unique name and identify the consistency group Enhanced FlashCopy image to be associated with the
consistency group Enhanced FlashCopy logical drive.
Optionally you can choose the name of the repository logical drive associated with the Enhanced
FlashCopy logical drive and set warning limit for that repository logical drive.
Chapter 6. Using the Enhanced FlashCopy Images Premium Feature
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