IBM System Storage DS3000, Programming Manual

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If you do not specify the
repositoryVolType
or
readOnly
parameters, the storage management software
selects the repositories for the consistency group Enhanced FlashCopy logical drive. If the subsystem or
disk pool where the base logical drive resides does not have enough space, this command fails.
The create
cgEnhancedFlashCopyLogicalDrive
command has unique forms that are explained by these
examples:
v
Creating a read/write consistency group Enhanced FlashCopy logical drive on an Enhanced FlashCopy
consistency group named "
enhancedFlashCopyCG1
" that has three memebers cgm1, cgm2, and cgm3. The
repository logical drives already exist and are selected by the user in this command.
create cgEnhancedFlashCopyLogicalDrive userLabel="cgEnhancedFlashCopyVol1"
cgEnhancedFlashCopyImageID="enhancedFlashCopyCG1:oldest" members=(cgm1:repos1_0010
cgm2:repos2_0011 cgm3:repos3_0007);
Note the use of the colon (:) in the name of the Enhanced FlashCopy image to be included in the
consistency group Enhanced FlashCopy logical drive. The colon is a delimiter that separates the name of
the Enhanced FlashCopy logical drive from a particular Enhanced FlashCopy image that you might want
to use. You can use one of these options following the colon:
v
An integer value that is the actual sequence number of the Enhanced FlashCopy image.
v newest - Use this option when you want to show the latest consitency group Enhanced FlashCopy
image.
v
oldest - Use this option when you want to show the earliest Enhanced FlashCopy image created.
The use of the colon following the names of the members of the Enhanced FlashCopy consistency group
acts define the mapping between the member and a repository logical drive. For example, in
cgm1:repos1_10, member cgm1 maps to repository logical drive repos1_0010.
v
Creating a read/write consistency group Enhanced FlashCopy logical drive on an Enhanced FlashCopy
consistency group named "
enhancedFlashCopyCG1
" of only members cgm1 and cgm2:
create cgEnhancedFlashCopyLogicalDrive userLabel="cgEnhancedFlashCopyVol2"
cgEnhancedFlashCopyImageID="enhancedFlashCopyCG1:14214"
members=(cgm1:repos_1000,cgm2:repos_1001);
v Creating a read-only consistency group Enhanced FlashCopy logical drive on an Enhanced FlashCopy
consistency group named
enhancedFlashCopyCG1 that has three members: cgm1, cgm2, and cgm3:
create cgEnhancedFlashCopyLogicalDrive userLabel="cgEnhancedFlashCopyVol3"
cgEnhancedFlashCopyImageID="enhancedFlashCopyCG1:oldest" readOnly;
v
Creating a consistency group Enhanced FlashCopy logical drive that has a repository full limit set to 60
percent on an Enhanced FlashCopy consistency group named
enhancedFlashCopyCG1
that has three
members cgm1, cgm2, and cgm3:
create cgEnhancedFlashCopyLogicalDrive userLabel="cgEnhancedFlashCopyVol3"
cgEnhancedFlashCopyImageID="enhancedFlashCopyCG1:oldest" repositoryFullLimit=60;
v
Creating a read/write consistency group Enhanced FlashCopy logical drive with automatic repository
selection on an Enhanced FlashCopy consistency group named
enhancedFlashCopyCG1
that has three
members cgm1, cgm2, and cgm3:
createc gEnhancedFlashCopyLogicalDriveu serLabel="cgEnhancedFlashCopyVol4"c
gEnhancedFlashCopyImageID="enhancedFlashCopyCG1:oldest";
Chapter 3. Script Commands
3-65