HP StorageWorks EVA Cluster Extension Software Installation Guide (T3667-96044, April 2010)

Glossary
array A synonym of storage array, storage system, and virtual array. A group of disks
in one or more disk enclosures combined with controller software that presents
disk storage capacity as one or more virtual disks.
CA HP StorageWorks Continuous Access EVA. CA lets you create and maintain
duplicate copies of local logical volumes on a remote storage system.
CLI Command-line interface. An interface comprised of various commands which
are used to control operating system responses.
command device A volume on the storage system that accepts HP Continuous Access or HP Business
Copy control operations that are then executed by the storage system.
CV EVA HP StorageWorks Command View Enterprise Virtual Array, a software product
for managing EVA arrays. Command View runs on a Windows-based
management workstation.
CVS Custom volume size. CVS devices (OPEN-x CVS) are custom volumes configured
using array management software to be smaller than normal fixed-size OPEN
system volumes.
See also VSC.
destination The targeted recipient (for example, array or virtual disk) of replicated data.
disk group A named group of disks selected from all the available disks in a disk array.
One or more virtual disks can be created from a disk group. Also refers to the
physical disk locations associated with a parity group.
DLL Dynamic-link library.
DR Data replication.
DR group Data replication group. A named group of virtual disks selected from one or
more disk groups so that they replicate to the same destination, fail over together
if a member virtual disk fails, and preserve write order within the group.
DSM Device Specific Module.
enhanced
asynchronous
mode
A write mode in which all host write I/Os are added to the write history log. The
controller then acknowledges that data has been written at the source before
being copied at the destination.
EVA Enterprise Virtual Array. An HP StorageWorks disk array product that allows
pooled disk capacity to be presented to hosts as one or more variably sized
physical devices. An EVA consists of disks, controllers, cables, power supplies,
and controller software. Storage system, virtual array, and storage array are
other names for an EVA.
See also virtual disk.
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