HP 3PAR T-Class Installation and Deinstallation Guide

Fibre Channel
adapter
A Fibre Channel PCI host bus adapter (HBA) located in a controller node. The Fibre Channel
adapter connects a controller node to a host or to a drive chassis.
host A set of WWNs of the physical ports on a system.
host definition The name of the host plus a list of the WWNs that make up the host.
host port See target.
host-sees VLUN
template
A rule that allows a particular host connected to any port to see a virtual volume as a specified
LUN.
HP 3PAR Remote
Copy
An HP product that allows the user to copy virtual volumes from one storage system to another.
HP 3PAR Thin
Provisioning
An HP product that allows the user to allocate only the physical resources that are actually needed
while presenting an arbitrarily large volume that can have its physical resources allocated on
demand.
HP 3PAR Virtual
Copy
The HP product used to create copy-on-write snapshots (virtual copies) of virtual volumes.
HP 3PAR Virtual
Copy DBA
A data protection solution that has been enhanced to provide fast and efficient Oracle backups
and restores.
IMP Stands for Initiator Mode Prohibited. This is a system setting. When IMP is enabled, a port cannot
be set to initiator mode.
independent
electrical circuit
An electrical circuit that does not share a circuit breaker with another electrical circuit.
initiator mode The firmware setting for a port that is connected to a drive cage.
initiator, initiator
port
A port that is connected to a drive cage. Also known as a disk port because it sends commands
to the physical disks.
local system See primary system.
logging logical
disks
RAID 10 logical disks created by the system during initial system setup used to temporarily store
data during physical disk replacement procedures. Each controller node has a 20 GB logging
logical disk.
logical disk An arrangement of rows of RAID sets. Logical disks are mapped to virtual volumes.
logical disk backup
node
The controller node that takes over for the logical disk owner node if the logical disk owner node
fails.
logical disk owner
node
The controller node that coordinates all transfers to and from a logical disk, maintains the mapping
information, and coordinates the recovery of failed physical disks.
logical unit number See LUN.
LUN Stands for Logical Unit Number. A number used to access a virtual volume that has been assigned
to a particular host on a particular port. See also export, VLUN, and VLUN template.
magazine, mag See drive magazine.
maintenance PC A laptop computer running Windows 2000 used by a field technician to initiate direct
communication with the storage system service processor and controller nodes.
mapped, mapping The correspondence of one element in the system to another element.
master node See virtual volume master node.
matched-set VLUN
template
A rule that allows a particular host connected to a particular port to see a virtual volume as a
specified LUN.
message code A keycode that identifies a system alert.
midplane See storage system midplane.
mirror One member of a group of mirrored chunklets, which is also known as a RAID 1 set.
mirror depth See set size.
node See controller node.
node cabinet A cabinet that houses the midplane and controller nodes.
node chassis See controller node chassis.
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