Remove Drives From Performance Read Cache - IBM System Storage DS3000 Programming Manual

Parameter
logicalDrive or
logicalDrives
accessLogicalDrive
host
hostGroup
Notes
The access logical drive is the logicalDrive in a SAN environment that is used for communication
between the storage management software and the storage subsystem controller. The access logical drive
uses a LUN address and consumes 20 MB of storage space that is not available for application data
storage. An access logical drive is required only for in-band managed storage subsystems.
Attention: Removing an access logical drive can damage your configuration – The agent uses the
access logical drives to communicate with a storage subsystem. If you remove an access logical drive
mapping for a storage subsystem from a host that has an agent running on it, the storage management
software is no longer able to manage the storage subsystem through the agent.
You must use the host parameter and the hostGroup parameter when you specify a non-access logical
drive or an access logical drive. The script engine ignores the host parameter or the hostGroup parameter
when you use the allLogicalDrives parameter or the logicalDrives parameter.

Remove drives from Performance Read Cache

This command reduces the capacity of the disk pool by removing the drives from the pool.
Syntax
set performanceReadCache [performanceReadCacheName]
removeDrives=(enclosureID1,drawerID1,slotID1 ...
enclosureIDn,drawerIDn,slotIDn)
Parameters
Parameter
performanceReadCache
Description
The name of the specific logical drive that you want to
remove from the LUN mapping. You can enter more than
one logical drive name. Enclose the logical drive name in
double quotation marks (" ") inside of square brackets
([ ]).
This parameter removes the access logical drive.
The name of the host to which the logical drive is mapped.
Enclose the host name in double quotation marks (" ").
The name of the host group that contains the host to which
the logical drive is mapped. Enclose the host group name
in double quotation marks (" "). The defaultGroup value is
the host group that contains the host to which the logical
drive is mapped. The HostGroup and Host parameters can
not be specifed together. You can specify either parameter
but not both at the same time.
Description
The alphanumeric identifier (including - and _) of the
Performance Read Cache from which you want to
remove SSDs. Enclose the identifier in square brackets ([
]). If the Performance Read Cache name contains special
characters or consists only of numbers, you also must
enclose the identifier in double quotation marks (" ")
inside square brackets.
Chapter 3. Script Commands
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