HP StorageWorks P4000 User Manual page 326

communication The unicast communication among storage systems and application servers.
mode
community string The community string acts as an authentication password. It identifies hosts that
are allowed read-only access to the SNMP data.
Configuration The Configuration Summary displays an overview of the volumes, snapshots,
Summary storage systems, and iSCSI sessions in the HP StorageWorks P4000 SAN
Solution. It provides an overview of the storage network broken out by
management groups.
data center Also known as a "Site." A data center is a physical location in your environment
where application servers, SAN storage and network equipment reside. In the
SAN/iQ Multi-Site software, a data center is typically referred to as a site.
disaster recovery Similar to a secondary site, the disaster recovery site is used to operate the SAN
site in the event of a disaster.
disk status Whether the disk is:
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DSM Device Specific Module
DSM for MPIO The HP StorageWorks P4000 DSM for MPIO vendor-specific DSM that interfaces
with the Microsoft MPIO framework.
failback After failover, the process by which you restore the primary volume and turn the
acting primary back into a remote volume.
failover The process by which the user transfers operation of the application server over
to the remote volume. This can be a manual operation, a scripted operation, or
VMware enabled.
Failover Manager A specialized manager running as a VMware appliance that allows you to place
a quorum tie-breaker system into a 3rd location in the network to provide for
automated failover/failback of the Multi-Site SAN clusters. The Failover Manager
is designed to run on VMware ESX Server, VMware Server, and VMware Player.
It is installed on hardware separate from the SAN hardware.
failover recovery After failover, the process by which the user chooses to fail back to the primary
volume or to make the acting primary into a permanent primary volume.
frame size The frame size specifies the size of data packets that are transferred over the
network.
full provisioning Full provisioning reserves the same amount of space on the SAN as is presented
to application servers.
ghost storage When using Repair Storage System, a "ghost" storage system acts as a
system placeholder in the cluster, keeping the cluster intact, while you repair or replace
the storage system.
326 Glossary
Active - on and participating in RAID
Uninitialized or Inactive - On but not participating in RAID
Off or Missing - Not on
DMA Off - disk unavailable due to faulty hardware or improperly seated in
the chassis