HP 3PAR StoreServ 7200 2-node Manual page 87

control cache Memory modules that support the microprocessors located in a controller node.
control cache A single control cache memory module.
DIMM
controller node An individual device that works with other controller nodes to cache and manage data in a system
and to provide hosts with a coherent, virtualized view of the storage system.
controller node An enclosure that houses all the controller nodes of a system.
chassis
copy data Data that occupies the snapshot data space (virtual copy space) on a virtual volume.
copy size The amount of snapshot data space (the logical disk space reserved for snapshots) in a virtual
volume.
copy-on-write A snapshot of a virtual volume made with the copy-on-write technique. This type of snapshot
snapshot consists of a pointer to the source volume and a record of every change made to the source
volume since the snapshot was created.
CPG Common Provisioning Group (also known as a storage pool or logical disk pool). A set of logical
disks from which you can create virtual volumes and virtual copies that are capable of allocating
storage on demand.
CPG template Common Provisioning Group template. A CPG template contains a set of common provisioning
group and logical disk parameters that HP 3PAR Management Console users can apply in order
to create a new Common Provisioning Group.
created host A host that is defined on the system but does not necessarily have any physically connected host
paths or WWNs assigned to it.
Customer A software tool that restricts connections between the service processor and the HP 3PAR technical
Controlled Access support center. Customer Controlled Access is independent of the user's network firewall and
works whether the connections are made through the Internet or through a point-to-point modem
connection.
daisy chaining Cabling configuration where components such as BBUs or drive cages are connected in succession.
data at rest Archived data. Data at rest may also include data that is seldom accessed and that is stored on
hard drives, backup disks, or on a storage area network.
data cache The dual in-line memory modules (DIMMs) that support the HP 3PAR ASIC located in a controller
node.
data cache DIMM A single data cache memory module.
data cache riser A printed circuit board with DIMM sockets that hold data cache memory modules.
card
destination volume The virtual volume to which data is copied during a virtual or physical copy operation.
disk scrub System functionality that scans physical disks for defects by reading and writing to the system's
IDE disk.
drive bay The space in a drive chassis into which a drive magazine is inserted.
drive cage A component in a rack or chassis that contains a drive. Drive cages connect to nodes for
communication with hosts. Drives may be Fibre Channel or iSCSI.
drive chassis An enclosure that houses drive cages.
drive chassis In a multicabinet system, any cabinet that is connected to a node cabinet but does not contain
cabinet controller nodes.
drive chassis The enclosure that houses the components of a drive chassis.
housing
drive enclosure A component used for housing drive cages in the front of the enclosure and nodes and I/O
modules in the rear of the enclosure.
drive magazine An electronic circuit board mounted on a mechanical structure that is inserted into a drive bay
in a drive cage. A drive magazine holds up to four physical disks.
drive magazine The panel used to seal off an empty drive bay. All drive bays in a drive cage must be sealed for
filler panel EMI and airflow considerations.
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