HP 3PAR Operating System Software - Manual (Page 522)

data cache The dual in-line memory modules (DIMMs) that support the 3PAR ASIC located in a controller
node.
data space See snapshot data space.
DC2 drive cage A storage system component consisting of a drive cage midplane, two drive cage FCAL modules,
four power supplies, and up to 40 physical disks in a maximum of ten drive magazines.
DC3 drive cage A storage system component consisting of a drive cage, two drive cage FCAL modules, two
power supplies, and up to 16 physical disks.
DC4 drive cage A storage system component consisting of a drive cage midplane, two drive cage FCAL modules,
four power supplies, and up to 40 physical disks in a maximum of ten drive magazines.
destination volume The virtual volume to which data is copied during a physical copy operation.
drive cage See DC2, DC3, and DC4 drive cage.
drive cage FCAL An interface module, located in a drive chassis, connecting a drive cage to a controller node or
to another drive cage.
enclosure services
interface Interface on the DC2 and DC4 drive cages through which the node software communicates to
the cage enclosure services controller to obtain status and control the cage behaviors.
ESI See enclosure services interface.
event Logs created by the system which allow you to view the day-to-day health of your system.
export To make a virtual volume available to a particular instance of a host (that is, a host WWN that
is actually present on a port) by creating an association between the name of the virtual volume
and a LUN for that host on that port. See also LUN, VLUN, and VLUN template.
FCAL Fibre Channel-Arbitrated Loop. FCAL is a fast serial bus interface standard used to connect storage
devices to systems.
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.
filtering In the HP 3PAR Management Console, filtering a table temporarily removes table entries that do
not meet the specified criteria.
grow To expand a base volume manually by increasing the user space, snapshot administration space,
or snapshot data space.
growth increment The unit of storage by which additional logical disks are created and allocated to a common
provisioning group (CPG). The growth increment is used to automatically create and allocate
space on demand as additional resources are required by the volumes that draw from the logical
disk pool. The default growth increment is fixed at 32 GB, but the minimum growth increment
varies according to the number of controller nodes in the system (from 8 GB for a two-node system
to 32 GB for a four-node system).
growth limit User-defined threshold that can be set for common provisioning groups (CPGs) to cap their
potential size. See also growth warning.
growth warning User-defined threshold that can be set for common provisioning groups (CPGs) to alert users when
they reach a certain size. See also growth limit.
host A set of WWNs of the physical ports on a system.
host port See target port.
HP 3PAR Domains An HP 3PAR feature that is used to create distinct domains with domain-specific users and objects
in an HP 3PAR Storage System.
HP 3PAR Remote
Copy An HP 3PAR product that allows you to copy virtual volumes from one HP 3PAR Storage System
to another. The copy can be used for disaster recovery, backup, or data migration.
HP 3PAR Thin
Provisioning An HP 3PAR 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.
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.
Internet Storage
Name Service See iSNS
522 Glossary