HP StorageWorks XP24000/XP20000 Array Manager Software Reference (T5214-96052, December 2008)

Virtual LVI for Mainframe
Virtual LVI enables you to configure variable-size volumes, which are usually smaller than normal
(fixed-size) volumes. Virtual LVI improves data access performance by reducing logical device contention
and host I/O queue times, particularly when several frequently accessed files are located on the same
volume. Virtual LVI enables better utilization of the physical storage capacity of the storage system,
and reduces the amount of administrative effort required to balance I/O workloads. It also boosts
remote copy performance by eliminating the need to copy large volumes of information that are only
partially used.
NOTE:
Virtual LVI used in conjunction with Cache Residency Manager for Mainframe can achieve greater
performance improvements than when either of these options is used individually. For more information
on Cache Residency Manager for Mainframe, see the HP StorageWorks XP24000 Cache Residency
Manager User’s Guide .
Volume Security for Mainframe
Volume Security for Mainframe protects data in your HP storage system from I/O operations performed
by mainframe hosts. Security can be applied to logical volumes so that specified mainframe hosts are
unable to read from and write to the specified logical volumes. Volume Security also enables you to
prevent data on logical volumes from being accidentally overwritten by local or remote copy operations.
Volume Security for Mainframe can be used in conjunction with the Volume Security Port Option.
Volume Security Port Option for Mainframe
The Volume Security Port Option is used to specify storage system ports through which hosts can
access logical volumes.
Data Retention Utility
Data Retention Utility helps you manage business-critical or sensitive data by providing a highly secure
method of LDEV access control, allowing you to protect critical data for archiving or data retention
purposes.
To perform Data Retention Utility operations, you must use the Remote Web Console software. For
detailed information, see the HP StorageWorks XP24000/XP20000 Remote Web Console User’s
Guide.
You can use RAID Manager to make some Data Retention Utility settings. You can view some of the
RAID Manager settings in the Data Retention Utility GUI. For details, see the HP StorageWorks XP
RAID Manager User’s Guide.
Database Validator
Database Validator provides the XP24000 and XP20000 Disk Arrays with an added level of data
protection when deployed in Oracle database environments. Implementing Oracle's Hardware Assisted
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