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CLARiiONstoragegroup In an EMC CLARiiON storage array, a set of addressable units (LUNs) defined so
that an operator can perform one LUN masking operation for the entire set of
LUNs rather than separately for each LUN. Contrast with storage group.
cluster A set of hosts (each termed a node) that share a set of disks and are connected by
aset ofredundant heartbeatnetworks. Acluster canhave fromone to32 member
systems, or nodes. Alsocalled VCS cluster. Specific to virtualization, one ormore
virtualization servers.
cluster communication Communication between clusters using either of the two core communication
protocols defined by Veritas Cluster Server: GAB and LLT. The communication
takes place by means of heartbeat signals sent between systems or fast
kernel-to-kernel broadcasts.
collector A measurementrepresenting aspecific stateor numerical valuefor objectsin the
storagenetwork. TheAlarmServiceuses collectorstomonitor andcorrelatestatus
andperformanceinformation,using severaldifferentprocesses.TheAlertManager
uses information gathered by collectors to trigger policy actions such as SMTP
mail, console alerts, commands, and logging. See also policy.
Command Central
Configuration Utility
Aprogram, usedinearlier releasesofthe SANPointControland CommandCentral
Storage products, thatscanned the storage network in orderto identify potential
configuration problems before installation. The program is no longer supported.
CommandCentral
Storage
A product offering designed to maximize the return on an enterprise’s storage
technologyinvestmentby providingtoolswithwhichastorage administratorcan
make the storage network or SAN operate as effectively as possible.
CommandCentral
Storage Agent Push
Install Utility
A Windows-based utility with which you can install an agent that enables the
collection of data through a variety of explorers. Using the Agent Push Install
Utility, you can manage installs, upgrades, and uninstalls for multiple
Windows-based managed hosts from one central location.
CommandCentral
Storage Alarm Service
AServercomponent (Windowsservice/UNIXdaemon)thatretrievesand correlates
SNMP and other data and sends alerts to the CommandCentral Storage Alert
Manager for further processing using defined policies. The Alarm Service has a
command-line interface—vxascmd—with which you can connect to an Alarm
Serviceserver toobtainserver andobject informationandperform variousAlarm
Service commands and queries.
CommandCentral
Storage Alert Manager
A Servercomponent thatmanages policies associatedwith objects onthe storage
network.A policyassociatescertain setsof conditionswithstorage resourcesand
definesactions tobetaken whentheseconditions aredetected.The AlertManager
isseamlesslyintegrated withtheCommandCentralStorageproduct sothatConsole
users can monitor, define, and modify policies.
CommandCentral
Storage Console
A graphical user interface that displays reports and other information for users
of the CommandCentral Storage product through a standard Web browser. The
37CommandCentral Glossary