HP XP P9000 Performance Advisor Software v6.0 Install Guide

LDAP is used for centralized authentication, where the LDAP server authenticates and authorizes
HP XP P9000 Performance Advisor users.
LDEV Logical device. An LDEV is created when a RAID group is carved into pieces according to the
selected host emulation mode (that is, OPEN-3, OPEN-8, OPEN-9). The number of resulting LDEVs
depends on the selected emulation mode. The term LDEV is also known as term volume.
LUN Logical unit number. A LUN results from mapping a SCSI logical unit number, port ID, and LDEV
ID to a RAID group. The size of the LUN is determined by the emulation mode of the LDEV and
the number of LDEVs associated with the LUN. For example, a LUN associated with two OPEN-3
LDEVs has a size of 4,693 MB.
M
MIX A circuit board in the disk control unit that includes disk adapters and channel adapters for
interfacing disk drives and the host to cache memory.
MP blades The MP blades are the microprocessor blades in the P9000 disk arrays. Each MP blade has four
MPs residing on it.
The MPs/DKPs that reside on the CHAs and the DKAs in the XP disk arrays form part of the MP
blades in the P9000 disk arrays.
Multiprocessor
(MP)
In an XP disk array, the MPs are installed on the CHAs and the DKAs. The MPs on a CHA are
addressed as CHPs and the MPs on a DKA are addressed as DKPs.
In a P9000 disk array, the MPs do not reside on the CHAs and DKAs. Instead, they form part of
the MP blades.
O
Outband The outband mode uses the TCP/IP to directly connect to the XP or the P9000 disk array and
collect the configuration data through the array SVP. Using the outband mode ensures that the
performance of the SAN is not affected because of the data collection.
P
HP XP P9000
Performance
Advisor
The HP XP P9000 Performance Advisor is a software product from HP for monitoring the XP and
the HP XP P9000 storage subsystems.
Primary Volume
(PVOL)
The PVOL (also seen with a hyphen as P-VOL) is the first of a paired volume set for any program
product other than those used for the remote copy operations.
R
RADIUS Vendor
Specific Attribute
(VSA)
The RADIUS VSA is required for authorizing the HP XP P9000 Performance Advisor users for the
RADIUS authentication. It must have a vendor ID of 11 that is assigned to Hewlett-Packard by
IANA and an attribute type of 1. Your system administrator must add a RADIUS VSA to the user
profile on the RADIUS server.
The VSA can have one of the following attribute values, depending on the role assigned to the
user profile:
• For XP PA administrators: XPPA: role=administrator
• For XP PA power users: XPPA: role=user
RAID group A group of disks configured to provide enhanced redundancy, performance, or both. Specifically,
four or eight physical hard disk drives (HDDs) installed in a disk array and assigned a common
RAID level.
RAID Manager RAID Manager is installed on the host systems and is used to manage activity with certain program
products of the XP subsystem (for example, pairing activity). Commands can be performed
manually or through the scripting for large jobs.
126 Glossary