Glossary
3PAR Remote Copy | A product that allows you to copy virtual volumes from one HP 3PAR storage system to another. |
CLI | |
| operating system responses. |
cluster | A group of controller nodes connected via the same storage server backplane. The nodes in a |
| cluster operate as a unified system, separate from any other clusters that may share the same |
| service processor. |
CLX | Cluster Extension. |
data distribution | Pushing copies of data to geographic locations to make it more easily accessible to many |
| customers. |
data migration | Moving data to a new location or to one with a larger capacity. |
fabric | A network of Fibre Channel switches or hubs and other devices. |
failover | A |
| Remote Copy volume group. |
GUID | Globally Unique IDentifier. |
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 | Redundant systems, software, and information technology processes to reduce the risk of downtime. |
| No single point of failure. |
LU | Logical Unit |
MNS | Majority node set quorum. A |
| resource that allows you to build clusters with nodes that are geographically separated. |
MSFC | Microsoft Failover Cluster. |
primary volume | A Remote Copy volume group that reside on the local or primary HP 3PAR storage system. |
group |
|
quorum | In MSFC, a cluster resource that has been configured to maintain essential cluster data and |
| recovery information. If a node fails, the quorum acts as a |
| surviving node to ensure that data remains consistent within the cluster. |
Remote Copy links | The method by which information is sent and received between Remote Copy targets. |
secondary volume | A Remote Copy volume group that reside on the remote or backup HP 3PAR storage system. |
group |
|
A state of data corruption can occur if a cluster is reformed as subclusters of nodes at each site, | |
syndrome | and each subcluster assumes authority, starting the same set of applications and modifying the |
| same data. |
target | The description of a Remote Copy system on one HP 3PAR storage system in the Remote Copy |
| pair. |
virtual volume | A virtual storage unit created by mapping data from one or more logical disks. |
VM | Virtual Machine. |
volume group | A group of virtual volumes that are logically related and for which there is a |
| of writes. |
World Wide Name | A 64- or |
(WWN) |
|
80 Glossary