HP P6000 Cluster Extension Software Administrator Guide (5697-2274, November 2012)

NIC Network interface card. A device that handles communication between a device and other devices
on a network.
normalization The initial full copy that occurs between a source vdisk to the destination vdisk.
OCF Open Cluster Framework.
P6000 Command
View
HP P6000 Command View consists of:
The GUI that displays the usage of the storage system.•
• The software behind the GUI, which controls and monitors the functions.
• The P6000 Command View software can be installed on more than one management server
in a fabric. Each installation of P6000 Command View software is a management agent.
The client for the agent is a standard browser.
primary 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.
quorum In MSCS, a cluster resource that has been configured to maintain essential cluster data and
recovery information. If a node fails, the quorum acts as a tie-breaker and is transferred to a
surviving node to ensure that data remains consistent within the cluster.
relationship The arrangement created when two storage systems are partnered for the purpose of replicating
data between them.
SCSI Small Computer Systems Interface. A standard, intelligent parallel interface for attaching peripheral
devices to computers, based on a device-independent protocol.
site failover Command to change a destination role to a source role at the designated site.
See also failover.
SMA The term storage management agent refers to the off-appliance, customer-provided Windows
server installation of P6000 Command View. The term storage management appliance refers to
the P6000 Command View installation on the HP-supplied management appliance.
See also Storage Management Appliance.
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.
STONITH Shoot The Other Node In The Head. A fencing method provided by SLE HA cluster.
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
Appliance
Software
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 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.
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