HP XP7 PA Software Installation Guide

RAID Manager
Library (RML,
RMLIB)
The RAID Manager Library is an API library that enables third-party software products to directly
operate some of the functions on the XP7 and XP disk arrays.
Read/Write (R/W) Read-write access.
Remote
Authentication Dial
In User Service
(RADIUS)
The RADIUS authentication is a networking protocol that provides centralized authentication,
where the RADIUS server authenticates and authorizes the HP XP7 Performance Advisor users.
Remote Web
Console (RWC)
An HP Storage software product. A browser-based program installed on the SVP that allows you
to configure and manage the disk array.
S
SAN Storage area network. A network of storage devices available to one or more servers.
Shared Memory
(SM)
The shared memory in an XP disk array stores shared information about the XP subsystem and
the cache control information.
The shared memory in an XP7 disk array stores shared information about the XP7 subsystem and
the cache control information.
This type of information is used for the exclusive control of the subsystem. Similar to the cache,
the shared memory is controlled as two areas of memory and is fully non-volatile (sustained for
approximately seven days).
sidefile An area of cache used to store the data sequence number, record location, record length, and
queued control information.
Smart Tiers The Smart Tiers are applicable only for the XP7 disk arrays and configured using the ThP V-Vols.
They ensure that the highly utilized ThP pages are relocated to the fastest drive in the ThP pool.
A maximum of three tiers can be configured.
Snapshot The snapshot is a business copy volume type that depicts a point-in-time copy of the original
primary volume.
SSL Secure Socket Layer.
Storage Logical
Partition (SLPR)
NOTE: Partition (SLPR) NOTE: SLPR does not exist in the P9500 and XP7 disk arrays. As a
result, the SLPR-related data is not displayed for the P9500 and XP7 disk arrays.
The SLPR is a partition of the RAID500 to which the host ports (1 or more) and the CLPRs (1 or
more) are assigned. The SLPR0 will always exist (cannot be deleted). Sometimes, the SLPR acronym
includes an additional word. For example, Storage administrator Logical Partition or Storage
management Logical Partition, both mean the same. The purpose of the SLPR is to allow multiple
administrators to manage a subsystem without the risk of causing mistakes that can destroy another
user's volumes, or reduce other user's expected performance by using more components (for
example, cache) than required.
Storage Subsystem
Identification (SSID)
The SSID (also called Subsystem Identifier) is a user assigned number that identifies a DASD
subsystem. This number is set by the service representative at the time of the installation and it is
included in the product data. The Valid SSID values are 0004-FFFC.
SVP Service processor. A notebook computer built into the disk array. The SVP provides a direct
interface to the disk array and used only by the HP service representative.
T
Thin Provisioning
(ThP, TP)
Using the thin provisioning, you can operate with a global pool of LDEVs that are not assigned
to a physical storage. The XP and the XP7 disk arrays add virtual capacity from the pool of LDEVs
as and when the data is written, and only at that time is the physical capacity assigned to the
LDEVs and used for storage purpose.
Tiered Storage
Manager (TSM)
Tiered Storage Manager Software is used to perform migration, where data stored on one volume
is moved to another volume in the disk arrays. Tiered Storage Manager moves data that resides
126 Glossary