User-Defined Parameters - IBM System Storage DS3000 Programming Manual

User-Defined Parameters

Use the parameters in the create flashcopyLogicalDrive command to define the FlashCopy logical drive
to suit the requirements of your storage subsystem. The following table lists the parameters and briefly
describes what the parameters do.
Table 5-3. FlashCopy Logical Drive Parameters
Parameter
driveType
repositorysubsystem
freeCapacityArea
userLabel
repositoryUserLabel
warningThresholdPercent
Description
The type of disk drive that you want to use for the
FlashCopy repository logical drive. Valid disk drive
types are fibre, SATA, or SAS. This parameter works
only with the count-based repository method of
defining a FlashCopy logical drive.
The subsystem in which you want to build the
FlashCopy repository logical drive. The default
value is to build the FlashCopy repository logical
drive in the same subsystem as the base logical
drive.
The amount of storage space that you want to use
for the FlashCopy repository logical drive. Free
storage space is defined in units of bytes, KB, MB,
GB, or TB.
The name that you want to give to the FlashCopy
logical drive. If you do not choose a name for the
FlashCopy logical drive, the software creates a
default name by using the base logical drive name.
For example, with a base logical drive name of
Mars_Spirit_4:
v When the base logical drive does not have a
FlashCopy logical drive, the default FlashCopy
logical drive name is Mars_Spirit_4-1.
v When the base logical drive already has n-1
number of FlashCopy logical drives, the default
name is Mars_Spirit_4-n.
The name that you want to give to the FlashCopy
repository logical drive. If you do not choose a
name for the FlashCopy repository logical drive, the
software creates a default name by using the base
logical drive name. For example, if the base logical
drive name is Mars_Spirit_4 and does not have an
associated FlashCopy repository logical drive, the
default FlashCopy repository logical drive name is
Mars_Spirit_4-R1. If the base logical drive already
has n-1 number of FlashCopy repository logical
drives, the default name is Mars_Spirit_4-Rn.
The percentage of the capacity that you will permit
the FlashCopy repository logical drive to get before
you receive a warning that the FlashCopy repository
logical drive is nearing full. The warning value is a
percentage of the total capacity of the FlashCopy
repository logical drive. The default value is 50,
which represents 50 percent of the total capacity.
(You can change this value later by using the set
flashcopyLogicalDrive command.)
Chapter 5. Using the FlashCopy Premium Feature
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