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

SMI-S Storage Management Initiative Specification.
snapclone A copy that begins as a fully allocated snapshot and becomes an independent
virtual disk. Applies only to the HP P6000/EVA array.
snapshot A nearly instantaneous copy of the contents of a virtual disk created without
interrupting operations on the source virtual disk. Snapshots are typically used
for short-term tasks, such as backups.
source vdisk A vdisk that contains original data that is replicated to its destination vdisk.
split-brain
syndrome
A state of data corruption can occur if a cluster is reformed as subclusters of
nodes at each site, and each subcluster assumes authority, starting the same set
of applications and modifying the same data.
SSL Secure Sockets Layer.
SSSU Storage System Scripting Utility. An HP command line interface used to configure
and control arrays.
Storage
Management
Appliance
The HP OpenView Storage Management Appliance is a specialized server on
which the P6000 Command View, P6000 Continuous Access user interface,
and other SAN applications run.
Storage
Management
SMA software installed on SMA hardware that provides a GUI for accessing the
monitored SAN environment. This software also provides a launch site for a
Appliance
Software
variety of value-added applications and provides navigation links to directly
manage storage components on the SAN.
Storage
Management
server
Any HP supported hardware-software platform that is not connected to the SAN
fabric and that does not serve as a storage host. SMS software installed on a
platform provides a GUI interface for accessing the monitored SAN environment.
storage pool The aggregated blocks of available storage in the total physical disk array.
storage system A pair of HSV controllers and the array of physical disks they control. A storage
system may contain vdisks that are sources as well as vdisks that are destinations.
Sometimes used in context as follows:
• Source storage system – Used in the context of a particular DR group, this is
the storage system at which the source vdisk resides.
• Destination storage system – Used in the context of a particular DR group,
this is the storage system at which the destination vdisk resides.
STONITH Shoot The Other Node In The Head. A fencing method provided by SLE HA
cluster.
storage
virtualization
The transparent abstraction of storage at the block level. It separates out logical
data access from physical per disk, or per array, data access.
synchronous mode The mode of operation of a DR group where the data is written to the source
and destination caches, after which a completion acknowledgement is sent to
the host. See also DR group write mode.
TB Terabyte. Equivalent to 1,000 Gb for data storage and statistics, or 1,024 Gb
for memory.
VCS VERITAS Cluster Server.
Glossary116