Glossary
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## Glossary

1-9

  Values for override in “NSR schedule” resource. Each number represents a backup level. Lower levels back up more files.

8 mm

  Choice in the Devices window; represents eight-millimeter magnetic tape.

archive

  The process by which NetWorker backs up directories or files that have not been accessed for a period of time to an archive volume, then optionally deletes them to release disk space.

ASM

  Application Specific Module. A program that, when used in a directive, specifies the way that a set of files or directories is to be backed up and recovered.

attribute

  A piece of information that describes a NetWorker resource. It has a name and a list of values.

autochanger

  A device that can move media among various components located in the device, including slots, media drives, media access ports, and transports; examples are jukeboxes (for optical disks) and tape libraries (for tapes).

bootstrap

  In NetWorker, the bootstrap consists of three files: the server`s file index (`server.db`), the media index (`mmvolume`), the server configuration information (`nsr.res`) and, if the TurboPak option has been purchased, the jukebox configuration file (`jb.res`).

browse policy

  The browse policy determines how long entries for your files remain in the online file index.

client

  A system that accesses the NetWorker server to back up or recover files. Clients may be workstations, PCs, or fileservers with gigabytes of data.

command line

  The shell prompt, where you enter commands.

compressasm

  The NetWorker directive used for compressing and decompressing files.

concurrent device support

  Concurrent device support is used when you have more than one device attached to the NetWorker server and want to use all of the devices for backups simultaneously. Concurrent device support spreads the backups evenly across the devices.

daemon

  A long-lived program that implements a service. For example, `nsrd` is a daemon that implements the NetWorker backup and recover service.

device

  The backup device connected to the NetWorker server; used for backing up and recovering client files.

directive

  Instruction to maximize the efficiency of a backup and to handle special files.

file index

  A database of information maintained by NetWorker that tracks every file or filesystem backed up.

fileserver

  A system with disks that provides services to other systems on the network.

filesystem

  1. A hierarchical data structure that holds and organizes files in directories. 2. The entire set of all IRIX files. 3. A method for storing files.

full (f)

  A backup level in which all files are backed up, regardless of when they last changed.

group

  A client or group of clients that starts backing up files at a designated time.

head (h)

  Represents the beginning of a save set that spans multiple backup volumes.

heterogenous

  Heterogenous networks are networks with different platforms that interact across the

himt

  A choice of media type in the Devices window; stands for half-inch magnetic tape.

holey

  A directive used to efficiently back up files that do not have all of their data blocks allocated. This directive is not available on EFS systems.

incremental (i)

  A backup level in which only files that have changed since the last backup are backed up.

interactive

  A program or script that asks questions requiring input from the user.

interoperability

  The ability of software and hardware on multiple systems from multiple vendors to communicate.

job pack

  A tray or carousel that holds several backup volumes.

jukebox

  A device that has the ability to move media among various components located in the device including slots, media drives, media access ports, and transports. Jukeboxes automate the media loading, labeling, and mounting functions during backups and recovers.

level 1-9

  A backup level that backs up files that have changed since the last backup of any lower level.

mailasm

  The directive that adheres to spool mail file-locking conventions and resets a file's access time back to its pre-saved values, so users can still tell if new mail arrived before NetWorker backed up their mail.

media

  Magnetic tape or optical disks used to back up files.

media index

  A database of information, maintained by NetWorker, which tracks every backup volume.

media manager

  The NetWorker component that tracks save sets to backup volumes.

media pool

  The collection of backup volumes recognized and managed by NetWorker.

middle (m)

  A command that requests a middle portion of a save set that spans multiple backup volumes.

mminfo

  The NetWorker command that displays information about the backup volumes.

NetWorker

  The network-based software product that backs up and recovers filesystems.

NetWorker client

  A system that can access the backup and recover services from a NetWorker server.

NetWorker daemons

  Daemons specific to the NetWorker environment.

NetWorker server

  The system on a network running NetWorker software, containing online indexes, and providing backup and recover services to clients on a network.

NetWorker resources

  Components of NetWorker software configuration information, described by a list of attributes and values.

notice

  A response to a NetWorker event.

nsrhost

  The logical hostname of the system that is the NetWorker server.

nsrjb

  Command line interface to a jukebox device.

nsrls

  The NetWorker command to display information about the online indexes.

nsrwatch

  A command that gives you a character-based display of NetWorker status information.

online indexes

  The databases located on the server that contain all the information pertaining to the client backups and backup volumes.

operator

  The person, group, or account name that monitors the server status, loads backup volumes into the server devices, and otherwise executes day-to-day tasks using NetWorker.

override

  A backup level that takes place instead of the scheduled one.

pre-configured

  Existing selections or configurations for different NetWorker features.

preview

  A look at what a NetWorker command will do without actually executing the command.

print

  Send data to a printer.

qic

  A choice in the Devices window; stands for quarter-inch cartridge tape.

recover

  The NetWorker command used to browse the server index and recover files from a backup volume to a client's disk.

retention policy

  A policy that determines how long entries are retained in the media index and thus how long they are recoverable.

recycle

  Relabel a backup volume with the same name, thus removing all entries associated with the backup volume from the server's index.

resources

  See NetWorker resources.

save

  The NetWorker command that backs up client files to backup volumes and makes data entries in the server index.

save set

  A set of files or a filesystem backed up onto backup media using NetWorker.

save set ID

  An internal identification number assigned to a save set by NetWorker.

scanner

  The NetWorker command used to read a backup volume.

server

  The system running the NetWorker software, containing the online index, and providing backup and recover services to clients on a network.

skip (s)

  A backup level in which files are skipped and not backed up.

skip

  The directive to skip files during a backup. Useful for skipping files that do not require a backup.

swapasm

  The directive used to back up NFS swap files.

system administrator

  The person normally responsible for installing, configuring, and maintaining NetWorker.

tail (t)

  Represents the end of a save set that spans multiple backup volumes.

user

  The person who can use NetWorker from his or her workstation to back up and recover files.

volume

  Backup media, such as magnetic tape or optical disk.

volume ID

  The internal identification assigned to a backup volume by NetWorker.

volume name

  The name you assign to a backup volume when it is labeled.

volume pools

  A feature that allows you to sort your backup data to selected backup volumes. A volume pool contains a collection of backup volumes that have specific data sorted during the backup process.

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