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Backup Terminology
Term
Definition
Backup software
The software running on the backup server that controls the flow of
backup data from backup clients to the backup media. Also, backup
agent software usually runs on the backup clients.
Catalog or Index
A collection of meta-data that identifies the details of a backup, for
example, the names of the clients backed up, the names, file sizes,
and dates of the data backed up, and the location of the files on the
backup media. Used to restore files.
Client parallelism
The number of sessions that a particular client can send to the
NetWorker server.
Dedicated tape
drive
A tape drive within a library that is statically and permanently
associated with one backup client. A shared tape drive is one that is
dynamically and temporarily associated with a backup client.
Fibre Channel to
SCSI bridge
A device that connects one or more Fibre Channel (FC) links to one
or more SCSI buses. The primary purpose of an FC to SCSI bridge is
to connect a tape library to an FC Storage Area Network (SAN).
Library changer
A robotic mechanism within a tape library that moves tape cartridges
between storage shelves and tape drives.
Meta-data
Control, status, error, and file index information exchanged between
backup server and backup client.
NIC
Network Interface Card. Note that EMC CLARiiON places no
restrictions on the NICs used in backup servers or clients.
Restore
Replacing lost or corrupt data on a client with the data that was
backed up.
Server parallelism
The total number of sessions that the NetWorker server can write to
all its tape devices simultaneously.
Shared tape drive
A tape drive within a library that is dynamically and temporarily
associated with a backup client. A dedicated tape drive is one that is
statically and permanently associated with a backup client.
Tape library or
Library
A device that houses one or more tape drives, a changer, and tape
cartridges.
Configuring Your IP4700 Device for Use with Backup Software
3