HP P6000 Cluster Extension Software Administrator Guide (5697-0986, June 2011)

Fibre Channel A data transfer architecture designed for mass storage devices and other

peripheral devices that require high bandwidth.

full copy The process of copying all data written on a source virtual disk directly to the

destination virtual disk. If a data block contains all zeros, a zeroing message is

sent to the destination array's virtual disk for the corresponding data block. This

minimizes the amount of data that must be written to the destination virtual disk.

When a full copy is complete, the source and destination virtual disks contain

the same data (synchronized).

GB Gigabyte. A unit of storage, abbreviated as G or GB, equal to 1,024 Megabytes.

GUI Graphical User Interface.

HBA Host bus adapter.

heartbeat A periodic synchronization signal issued by cluster software or hardware to

indicate that a node is an active member of the cluster.

high availability

(HA)

Redundant systems, software, and information technology processes to reduce

the risk of downtime. No single point of failure.

home A DR group that is the preferred source in a replication relationship. By default,

home is the original source, but it can be set to the destination DR group.

host A computer that runs user applications and uses (or potentially uses) one or more

virtual disks that are created and presented by the array controller.

HSV Hierarchical Storage Virtualization. The name given to the virtualization controller

architecture.

iLO Integrated Lights Out

ISL Intersite link or interswitch link. The abbreviation is context sensitive.

JRE Java Runtime Environment.

leveling Distribution of all user data within the virtual disks across all physical disks within

the disk group.

local site Controller pair residing at the data center that contains the source data. A storage

system may be considered a primary site for some vdisks and an alternate site

for other vdisks.