HP StorageWorks P9000 Performance Advisor Software v5.3 User and Troubleshooting Guide (T1789-96322, August 2011)

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.
sidefile An area of cache used to store the data sequence number, record location,
record length, and queued control information.
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 a P9000 disk array stores shared information about the
P9000 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).
Smart Tiers The Smart Tiers are applicable only for the P9000 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.
Storage Logical
Partition (SLPR)
NOTE:
The SLPR component is applicable only for the XP disk arrays. It does not exist
in the P9000 disk arrays. As a result, the SLPR-related data is not displayed in
P9000 Performance Advisor for the P9000 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 (e.g. 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.
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 P9000 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 on predefined set of volumes to another
set of volumes with the same characteristics. For more information, see the
manuals set provided for Tiered Storage Manager on the HP Manuals page.
trap A type of SNMP message used to signal that an event has occurred. (SNIA)
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