CLI Guide

When you enter a value for the segment size, the value is checked against the supported values that are
provided by the RAID controller module at run time. If the value that you entered is not valid, the RAID
controller module returns a list of valid values. Using a single physical disk for a single request leaves
other physical disks available to simultaneously service other requests.
If the virtual disk is in an environment where a single user is transferring large units of data (such as
multimedia), performance is maximized when a single data transfer request is serviced with a single data
stripe. (A data stripe is the segment size that is multiplied by the number of physical disks in the disk
group that are used for data transfers.) In this case, multiple physical disks are used for the same request,
but each physical disk is accessed only once.
For optimal performance in a multiuser database or file system storage environment, set your segment
size to minimize the number of physical disks that are required to satisfy a data transfer request.
Set Virtual Disk Copy
Description
This command defines the properties for a virtual disk copy pair.
Syntax
set virtualDiskCopy target [targetName] [source
[sourceName]]
copyPriority=(highest | high | medium | low | lowest)
targetReadOnlyEnabled=(TRUE | FALSE)
copyType=(online | offline)
Parameters
Parameter Description
target
Specifies the name of the target virtual disk for
which to define properties. You must put brackets
([ ]) around the target virtual disk name. If the target
virtual disk name has special characters, you must
also put quotation marks (" ") around the target
virtual disk name.
source
Specifies the name of the source virtual disk for
which to define properties. You must put brackets
([ ]) around the source virtual disk name. If the
source virtual disk name has special characters,
you must also put quotation marks (" ") around the
source virtual disk name.
copyPriority
Specifies the priority that the virtual disk copy has
relative to host I/O activity. Valid entries are
highest, high, medium, low, or lowest.
targetReadOnlyEnabled
Specifies whether the target virtual disk is write
enabled or read only. To be able to write to the
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