Set Thin Logical Drive Attributes - IBM System Storage DS3000 Programming Manual

The writeOrderparameter applies only to Enhanced Global Mirrors and makes them become part of a
consistency group. Setting the writeOrder parameter to preserved causes the remote-mirrored pair to
transmit data from the primary volume to the secondary volume in the same order as the host writes to
the primary volume. In the event of a transmission link failure, the data is buffered until a full
synchronization can occur. This action can require additional system overhead to maintain the buffered
data, which slows operations. Setting the writeOrderparameter to notPreserved frees the system from
having to maintain data in a buffer, but it requires forcing a full synchronization to make sure that the
secondary volume has the same data as the primary volume.
Minimum Firmware Level
6.10

Set Thin Logical Drive Attributes

This command defines the properties for a thin logical drive. You can use the parameters to define
properties for one or more thin logical drives.
Syntax
set (logicaldrive ["
logicaldriveName"] | logicaldrives ["logicaldriveName1" ...
"logicaldriveNameN"] | logicaldrive <wwID>)
[newCapacity=capacity-spec |repositoryMaxCapacity=capacity-spec |
repositoryExpansionPolicy=(automatic|manual) |
warningThresholdPercent=integer-literal |
addRepositoryCapacity=capacity-spec]
Parameters
Parameter
logicaldrive or logicaldrives
logicaldrive
newCapacity
repositoryMaxCapacity
repositoryExpansionPolicy
warningThresholdPercent
Description
The name of the specific logical drive for which you
want to define properties. (You can enter more than one
logical drive name if you use the logicaldrives
parameter.) Enclose the logical drive name in double
quotation marks (" ") inside of square brackets ([ ]).
The World Wide Identifier (WWID) of the logical drive
for which you are setting properties. You can use the
WWID instead of the logical drive name to identify the
logical drive. Enclose the WWID in angle brackets (< >).
Increase the virtual capacity of the thin logical drive.
This is the value that the logical drive will report to a
host that is mapped to the logical drive. Values smaller
or equal to the existing capacity will cause an error.
Set the maximum capacity of the repository logical drive.
The value must not be smaller that the physical capacity
of the repository logical drive. If the new value results in
a reduction in capacity to a level below the warning
threshold, the command will produce an error.
Set the expansion policy to automatic or manual. When
you change the policy from automatic to manual, the
maximum capacity value (quota) changes to the physical
capacity of the repository logical drive.
Adjust the warning threshold. If a change to this value
would cause a warning condition, the command will fail
and produce an error.
Chapter 3. Script Commands
3-245