HP LUN Configuration Manager XP Software - Manual (Page 79)

VSC operations 79
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VSC operations
Volume Size Configuration (VSC) allows you to configure custom size
volumes that are smaller than normal volumes. VSC improves data access
performance by reducing logical device contention as well as host I/O
queue times, which can occur when several frequently accessed files are
located on the same volume. VSC enables better utilization of the physical
storage capacity of the disk array while reducing the amount of
administrative effort required to balance storage device I/O work loads.
VSC can be used in conjunction with Cache LUN XP while maintaining
flexibility in the cache configuration.
VSC operations can be performed by users with administrator or custom
VSC access privileges. Users without administrator or VSC access
privileges can only view the VSC configuration information for each
attached disk array. VSC operations can only be performed when the VSC
option is enabled.
The procedures for performing VSC operations are different depending on
whether you have an XP256 or and XP512. The procedures are divided into
two sections. Make sure you are using the correct set of instructions.