access control list (ACL)

Security information associated with files on some file systems.


active job

A job for which NetBackup is currently processing backup or restore data.

active node

The designated node in a clustered environment where NetBackup is installed and from which NetBackup can push to other nodes in the cluster. The NetBackup daemons are running on an active node.

activity logs

debug logs

Activity Monitor

A NetBackup administration utility that displays information about NetBackup jobs and provides limited control over them.

ADAMM database

The Backup Exec database that maintains device and media information (Advanced Device and Media Management).

administration client

remote administration console


A user that is granted special privileges to install, configure, and manage the operation of a system, network, or application.


Sony Advanced Intelligent Tape, a type of tape drive or media type.

alternate client backup

A backup performed by one client on behalf of another client. Requires a snapshot method (included in Advanced Client).

alternate path restore

See redirected restore (different path).

alternate read server

In Vault, an alternate read server is a server used to read a backup image that was originally written by a different media server. The media server specified as alternate read server must have access to the media that contains the backup image or images.

alternate-client restore

redirected restore (different client)

alternate-target restore

See redirected restore (different target).

API robots

A set of Enterprise Media Manager (EMM) robot types in which the robot-vendor software or the operating system (in the case of RSM robots) manage their own media.

archive bit

A file-status bit that the Microsoft based operating system sets when it writes a file, thereby indicating that the file changed.


A special kind of backup in which NetBackup backs up the selected files, and if the backup is successful, deletes the files from the local disk. References to backups also apply to the backup portion of archive operations except where otherwise noted.

attributes for a policy

Configuration parameters that control the behavior of NetBackup during operations involving this policy.


See robotic library.


See robotic library.

automatic backup

A scheduled backup by the master server.


The automatic volume recognition daemon on UNIX and process on Windows.

back up

The act of copying and saving files and folders to storage media.

backup agent

A general term for the host that manages the backup on behalf of the NetBackup client. This is either another client, the NetBackup media server, or a third-party copy device.

backup window

The period of time during which backups can begin.

Backup, Archive, and Restore interface

The name of the NetBackup Microsoft Windows and Java based user interfaces for clients. On servers these interfaces can be started through the NetBackup Administration Console.


Refers to the process of copying and saving files and directories to storage media. This term can also refer to the collection of data that NetBackup saves for a client during a backup or archive.

Backup is two words when used as a verb. For example, back up the file.

barcode rule

A rule that specifies criteria for assigning attributes to new robotic volumes.


A label attached to the media that associates the media to its slot location in a robot. The alphanumeric barcode is also usually included on the magnetic label that is written on the media.


The mirror disk in an EMC primary-mirror array configuration. BCV stands for "Business Continuance Volume."


block size

The number of bytes in each block of data written on the media during a backup.

boot server

In Bare Metal Restore, a server that contains the resources to boot a client, rebuild the client system, and begin a restore or a discovery.

bp.conf file

A NetBackup configuration file on UNIX servers and also on UNIX, Macintosh, and OS/2 clients.

bp.ini file

NetBackup initialization file for Novell NetWare target clients.


A backup, archive, and restore utility for users on NetBackup UNIX clients. It has a character-based, menu interface that can be run from terminals that do not have Windows capabilities.


An administrator utility that runs on NetBackup UNIX servers. It has a character-based, menu interface that can be run from terminals that do not have Windows capabilities.


NetBackup Client service on Windows and the NetBackup Client daemon on UNIX.


NetBackup Request Manager service on Windows and NetBackup Request daemon on UNIX.


In a SAN network, a bridge connects SCSI devices to Fibre Channel. A third-party copy device can be implemented as part of a bridge or as part of other devices. Note that not all bridges function as third-party copy devices.


One of several snapshot methods included in Advanced Client. BusinessCopy is used for making snapshots of client data on HP disk arrays.

cancel a job

Terminate a job and remove it from the job queue.


See robotic library.


Internal NetBackup and Enterprise Media Manager (EMM) databases. These catalogs contain information about configuration, media, devices, status, errors, and the files and directories in the stored backup images.


See robotic library.


See policy.

client configurations

In Bare Metal Restore, snapshots of system-specific configuration information, including the number of disk drives, volume and file system information, number and type of network adapters, network properties, drivers, and other pertinent information. A client configuration may change over time as you update system hardware and software.


The system with the files to back up, archive, or restore.


See master and media server cluster.

command lines

Commands that users can run either from the system prompt or in scripts.


The process of compacting data to enable more efficient transmission and storage.


The parameters that govern the behavior of an application. This term can also refer to the manner in which a network or system is laid out or connected (for example, a network configuration).

consolidated eject

In Vault, consolidated eject is the process of ejecting media for more than one Vault session at a time. A consolidated eject can be performed for one or more logical vaults at one time.

consolidated report

In Vault, consolidated reporting is the process of generating reports for more than one Vault session at a time. A consolidated report can be performed for one or more logical vaults at one time. Consolidated reports are organized by report title, not by vault.


In NetBackup Advanced Client, one of two types of supported snapshots. Unlike a mirror, a copy-on-write does not create a separate copy of the client's data. It creates a block-by-block "account" that describes which blocks in the client data changed and which have not from the instant the copy-on-write was activated. This account is used by the backup application to create the backup copy.


A UNIX command that can be used for copying files to or from a cpio archive on disk or tape.


The time that a UNIX inode was changed.

cumulative incremental backup

A backup that is scheduled by the administrator on the master server and backs up files that changed since the last successful full backup. All files are backed up if no prior backup was done.

For details on how incremental backups are performed for databases, refer to the documentation provided with your database agent.

See differential incremental backup.


A program on a UNIX system that runs in the background and performs some task (for example, starting other programs when they are needed). Daemons are generally referred to as services or processes on Windows server systems.


DAR stands for Direct Access Recovery, in which the NDMP host positions the tape to the exact location of the requested file(s), reading only the data needed for those files. Restore times can be reduced from hours to minutes.

data mover

A Fastrax component that moves data between an EMC Symmetrix system and Fastrax-attached tape drives. Each mover has connectors for one or two Symmetrix systems, and also has SCSI channels to which multiple tapes drives can be attached.

database-agent clients

Clients with additional NetBackup software that is designed to back up relational databases.

database-extension clients

See database-agent clients.

debug logs

Logs that can be optionally enabled for specific NetBackup and Enterprise Media Manager (EMM) programs and processes and then used to investigate problems.

destination storage unit

In Vault, a storage unit that contains the resources to which the copies of the backup images are written. There can be up to four storage units. If the duplicated backup images are to be vaulted, the destination storage unit must correspond to the robotic volume group.

device delays

Delays caused by the device that are beyond the control of the storage application. An example is the time required to position tape under the read and write heads.

device discovery

An exploratory method used by Enterprise Media Manager (EMM) to determine which peripheral devices are visible from a given host. Visibility depends on physical attachment, device state, and the host-based system device-layer configuration.

device host

A host where a drive or robotic control is attached or is defined that also has Enterprise Media Manager (EMM) installed.

device monitor

An Enterprise Media Manager (EMM) administration utility that provides monitoring and manual control of EMM storage devices. For example, an administrator or computer room operator can use this utility to manually reset devices or set them to the UP or DOWN state.

device serialization

A device firmware feature used by Enterprise Media Manager (EMM) that allows for easier device identification and configuration.


Dynamic host configuration protocol. This TCP/IP protocol automatically assigns temporary IP addresses to hosts when they connect to the network.

differential incremental backup

Scheduled by the administrator on the master server and backs up files that changed since the last successful incremental or full backup. All files are backed up if no prior backup was done.

For details on how incremental backups are performed for databases, refer to the documentation provided with your database agent.

See cumulative incremental backup.

directory depth

The number of levels below the current directory level that the NetBackup interfaces show in their directory and that the file list displays.

directory tree

The hierarchical structure in which files are organized on a disk. Each directory lists the files and directories that are directly below it in the tree. On UNIX, the topmost directory is called the root directory.

disaster recovery

Recovering data from backups after a disk crash or other catastrophe.

discovery boot

In Bare Metal Restore, a non-intrusive boot that collects device and disk layout information.

disk group

A configuration of disks to create a primary-mirror association, by that use commands unique to the disks' vendor.

See mirror.

See volume group.


Magnetic or optical disk storage media.

disk-image backup

A bit-by-bit rather than a file system backup of a disk drive on a Windows platform.

dissimilar disk restore (DDR)

In Bare Metal Restore, the capability to restore to a machine that has a different disk configuration than the original machine.

dissimilar system restore (DSR)

In Bare Metal Restore, the capability to restore a machine into complete different hardware (Windows only).


Digital-linear tape or tape drive type.

Domain Name Service (DNS)

A program that handles name translation for network communications.

Domino Server database (NetBackup for Lotus Notes Agents)

Domino Server databases are managed by the Domino Server. Domino Server databases are located at or in another a directory in the Domino data directory, typically \Lotus\Domino\Data (Windows) or /db/notesdata/ (UNIX). Domino Server databases can also be linked to this Domino data directory by using Lotus Linked Databases. Domino Server databases can be Logged or Unlogged.

drive cleaning

The use of a special cleaning tape to clean the heads on a drive.

drive status

A status indicating if a drive is available. Drive status can be UP or DOWN.

duplicate backup

A copy of a backup image created by a Vault duplication operation.

duplicate image

A copy of a backup image.


Move media out of a robotic library.


Provides additional security by encrypting backup data on the client. This capability is available only with the NetBackup Encryption option.

Enterprise Media Manager (EMM) Domain

A domain in which all of the media, device, and storage unit information for a master server and all of its media servers is stored in a single database. Formerly, the Media and Device Management (MDM) domain.

The Enterprise Media Manager domain server is the host where the EMM database for a domain is located.

Enterprise Media Manager (EMM) Host

Host where EMM is installed (may have devices attached).

entry and exit ports

See media access port.


See external media ID.

exclude list

A list that designates files or directories to exclude from automatic backups.

expiration (image)

The date and time when NetBackup stops tracking a backup image.

expiration (volume)

The date and time when the physical media (tape) is considered to be no longer usable.


A contiguous set of disk blocks allocated for a file and represented by three values: device identifier, starting block address (offset in the device) and length (number of contiguous blocks). The mapping methods in Advanced Client determine the list of extents and send the list to the backup agent.

external media ID

An identifier written on a media cartridge or canister to help the operator identify the volume before inserting it into a drive or robot. For labeled media, the external media ID should be the same as the media ID recorded on the media.


Formerly known as Fast Mirror Resynchronization or FMR, FastResync performs quick and efficient resynchronization of disk mirrors. NetBackup Persistent Frozen Image uses this feature to create and maintain a point-in-time copy of a production disk volume.

Fibre Channel

A type of high-speed network composed of either optical or copper cable and employing the Fibre Channel protocol. NetBackup supports both arbitrated loop and switched fabric (switched fibre channel) environments.

file system


A policy type that combines the speed of raw-partition backups with the ability to restore individual files.

flush level

Controls how often NetBackup clears its log files on a Novell NetWare or Microsoft Windows client platform.


A part of a backup or archive image. NetBackup can be configured to divide images into fragments when they exceed a certain size or span tapes.

frequency (backup)

How often NetBackup performs scheduled backups. For example, if the frequency is seven days, then backups occur once a week.

frozen image

See snapshot.

FROZEN media state

If a volume is FROZEN, NetBackup keeps it indefinitely and can restore from it but not use it for further backups or archives.

full backup

A backup that copies to a storage unit all files and directories that are beneath a specified directory.

For details on how full backups are performed for databases, refer to the documentation provided with your database agent.

FULL media state

If this appears in a report or listing, it indicates the volume is FULL and cannot hold more data or be used for further backups.

global attributes

NetBackup configuration attributes that affect all policies.

global device database

A database that is the repository for global device configuration information. This information is used by Enterprise Media Manager (EMM) to automate device configuration and is the basis for the device configuration presented in the GUIs.

GNU tar

A public domain version of the UNIX tar program.

goodies directory

A directory containing programs, scripts, and other files that are not formally supported.


Graphical user interface.

hard link

On UNIX, a hard link is a pointer to the inode for the data. On a Windows server, a hard link is a directory entry for a file. Every file can be considered to have at least one hard link. On NTFS volumes each file can have multiple hard links, and a single file can appear in many directories (or even in the same directory with different names).

heap level

A parameter for memory-heap debugging on a Novell NetWare or Windows NetBackup client.

hierarchical storage management

The process of automatically migrating selected files from a managed file system to specified migration levels on secondary storage, while maintaining transparent access to those files.

host name

Name by which a host computer is identified by programs and other computers in the network.


A computer that runs application programs.


See storage migrator.


The collection of data that NetBackup saves for an individual client during each backup or archive. The image contains all the files, directories, and catalog information associated with the backup or archive.


The process of recreating NetBackup records of images so the images can be restored.

inactive node

An inactive node is a node in which the NetBackup cluster group does not reside. The NetBackup daemons are not running on an inactive node.

include list

A list that designates files or directories to add back in from the exclude list.

incremental backup

See cumulative incremental backup.

See differential incremental backup.


Move media into a robotic library.


A UNIX data structure that defines the existence of a single file.


See media access port.


A volume is physically placed in a robot without using an add or move option to update the volume database.


Directory where NetBackup and Enterprise Media Manager (EMM) software is installed. The default on Windows servers is C:\Program Files\Veritas and on UNIX it is /usr/openv.


The Java-based NetBackup interface for performing user backups, archives, and restores.


The Java-based NetBackup interface for administrators.


A parcel of work submitted to a computer. NetBackup jobs are backups, archives, or restores.


The nucleus of an operating system.

keyword phrase

A textual description of a backup.

kill a job

See cancel a job.


Identifier of a tape or optical disk volume. A recorded label includes a media ID.

A barcode label allows a barcode scanner to be used for media tracking.

labeled volume

A volume with a recorded media ID (that is, the volume was labeled by NetBackup or Backup Exec).

library sharing

Allows different drives in a robot to be connected to different hosts. Library sharing is supported on NetBackup Enterprise Server only.

Also known as robot sharing or remote robot control.


See robotic library.


See hard link.

See symbolic link.


(noun) Amount of work that is being performed by a system or the level of traffic on a network. For example, network load affects performance.

(verb) Copy data to internal memory. For example, load the installation program.

(verb) Used to indicate tape drive initialization performed when new media is being added.

local database (NetBackup for Lotus Notes Agents)

Local databases are Lotus databases that are not found in the Domino data directory, which cannot be shared and cannot be logged. For this type of database, it is necessary to back up the database itself for all backup types (full, differential-incremental, and cumulative-incremental). The database can be restored only to the point of the latest database backup.

logged database (NetBackup for Lotus Notes Agents)

A feature of Domino R5 Server is the ability to log transactions against one or more Lotus databases. If transaction logging is enabled on the server, all logged database transactions go into a single transaction log, consisting of one or more files or extents. When archive-style transaction logging is used, the archived log files serve as the incremental backup for the logged databases. Transaction logging must be enabled in order to initiate the recovery of logged databases by using NetBackup for Lotus Notes.


Files where a computer or application records information about its activities.


The Enterprise Media Manager (EMM) device daemon on UNIX and the NetBackup Device Manager service on Windows.


See media access port.

man pages

Online documentation provided with UNIX computer systems and applications.

mapping methods

A set of routines for converting logical file addresses to absolute physical disk addresses or extents. NetBackup ServerFree Agent includes support for file-mapping and volume-mapping methods.


The process of converting a file or raw device (in the file system or Volume Manager) to absolute physical disk addresses or extents for use by backup agents on the network. NetBackup ServerFree Agent uses the VxMS library to perform file mapping.

master and media server cluster

A NetBackup master server and the remote media servers that uses for additional storage. It is possible to configure clusters with NetBackup Enterprise Server only. NetBackup Server supports only a single server, the master.

master of masters

A NetBackup host where Global Data Manager software is installed. When logging into this host, the interface has a tree view where the administrator can view and administer multiple master servers.

master server

The NetBackup server that provides administration and control for backups and restores for all clients and servers in a master and media server cluster. NetBackup Server supports only a single server, and it is the master.

media access port

A slot or other opening in a robot where you can insert or remove a tape without having to access the interior of the robot. After you insert a tape, you move it to a slot by using an inject command. Prior to removing a tape, you move it to the port by using an eject command. The inject and eject commands are supported through the add and move screens in the Enterprise Media Manager (EMM) administration interface.

Media and Device Management (MDM) domain

See Enterprise Media Manager (EMM) Domain.

media host

NetBackup server to which the job (client) is sending the data.

media ID

An identifier that is written on a volume as part of the recorded label.

Media Manager (Enterprise Media Manager, or EMM)

Software that is part of NetBackup and manages the storage devices and removable media.

media server

A NetBackup server that provides storage within a master and media server cluster. The master can also be a media server. A media server that is not the master is called a remote media server. Remote media servers are supported on NetBackup Enterprise Server only.

media sharing group

A media sharing group is a specific NetBackup server group that contains NetBackup media servers or NDMP tape servers that can share media for write purposes.

See server group.

media type

Enterprise Media Manager (EMM) classification of tape or optical media with differing physical characteristics.


Physical magnetic tapes, optical disks, or magnetic disks where data are stored.

menu interface

A character-based interface for use on terminals that do not have graphical capabilities.

Microsoft Windows

(noun) Describes a line of operating systems developed by Microsoft, Inc.

For more information on the Windows operating systems that NetBackup supports, refer to the NetBackup support Web site:


Commonly referred to as failover, migrating occurs when a node becomes unavailable, and the cluster resources are migrated to an available node.


A disk that maintains an exact copy or duplicate of another disk. A mirror disk is often called a secondary, and the disk that it copies is called the primary. All writes to the primary disk are also made to the mirror (or secondary) disk.

A type of snapshot captured on a mirror disk. At an appropriate moment, all further writes to the primary disk are held back from the mirror, thus causing the mirror to "split" from the primary. As a result of the split, the mirror becomes a snapshot of the primary. The snapshot then can be backed up.

mount point

The point where a file system on a disk logically connects to a system's directory structure so that the file system is available to users and applications.


Make a volume available for reading or writing.


See multiplexing.


The point in time when a UNIX or NTFS file is modified.

multiplexed group

A set of backups that were multiplexed together in a single multiplexing session.


The process of sending concurrent-multiple backups from one or more clients to a single storage device and interweaving those images onto the media.

NDMP client

An NDMP-compliant backup application that is a client of an NDMP server. An NDMP client sends commands to the NDMP server to control the backups and restores on an NDMP host. NetBackup for NDMP is an application that allows NetBackup to be an NDMP client.

NDMP host

A NAS (Network Attached Storage) system that runs an NDMP server application to allow backup and restore. In a NetBackup configuration, the NDMP host is considered a client of NetBackup. However, NetBackup client software is not installed on an NDMP host.

NDMP storage unit

Stores the backup data for an NDMP host. The tape drives in this storage unit attach directly to the NDMP host or to a NetBackup media server acting as an NDMP host (for remote NDMP). These drives cannot be used to store data for non-NDMP hosts.


Network data management protocol. NDMP is a widely used protocol through which an NDMP-compliant backup application can control the backups and restores for an NDMP host. NetBackup requires the NetBackup for NDMP separately-priced option to support NDMP.

NetBackup authentication

A NetBackup security level. Authentication verifies NetBackup client-to-server or server-to-server access and also controls access to the services available on that host.

NetBackup authorization

A NetBackup security level. Authorization verifies if a NetBackup administrative user has permission to use the services available on that host. Authorization provides additional security over the security provided by authentication.

NetBackup Client service

NetBackup Windows service that runs on clients and servers and listens for connections from NetBackup servers and clients in the network. When a connection is made, this service starts the necessary programs.

NetBackup configuration options

On UNIX servers and on UNIX and Macintosh, clients, these settings are made in the bp.conf file. On NetWare target and OS/2 clients, they are in the bp.ini file. On Windows servers and Windows clients, these settings are called properties and are made through the Backup, Archive, and Restore interface or the Host Properties dialog box in the NetBackup Administration Console.

NetBackup Database Manager service

NetBackup Windows service that runs on the master server and manages the NetBackup internal databases (called catalogs). This service must be running on the master server during all NetBackup administrative operations.

NetBackup databases

See catalogs.

NetBackup Device Manager service

The NetBackup Windows service that runs on a NetBackup server and starts the robotic control processes and controls the reservation and assignment of volumes. This service runs only if the server has devices under Enterprise Media Manager (EMM) control. The process is ltid.

NetBackup for NDMP server

A NetBackup master or media server that has NetBackup for NDMP installed on it.

NetBackup Media Server method

An offhost backup method provided by NetBackup Advanced Client, in which data movement is performed by a NetBackup media server.

Symantec OpsCenter

An advanced, high-performance managing and monitoring application that works in conjunction with an installed base of NetBackup Enterprise Server or NetBackup Server master and media servers, and associated clients.

NetBackup properties

Same as NetBackup configuration options but are called NetBackup properties on Microsoft Windows platforms.

NetBackup Request Manager service

The NetBackup Windows service that runs on the master server and starts the scheduler and receives requests from clients.

NetBackup Volume Manager service

A NetBackup Windows service that runs on a NetBackup server, allows remote administration of Enterprise Media Manager (EMM), and manages volume information. The process is vmd.


Network file system.


Network information service.


NetWare loadable module.

no rewind on close

A device name that applies to tape drives attached to (or controlled by) UNIX devices. This type of device remains at its current position on a close operation.


In a server cluster, two or more servers (called nodes) are linked in a network, and run cluster software that allows each node access to the shared SCSI bus to which any number of disks can connect.


See standalone.

offhost backup

The off-loading of backup processing to a separate backup agent running on another host. NetBackup Advanced Client provides the following offhost backup options: alternate client backup, NetBackup Media Server, Third-Party Copy Device, and Network Attached Storage.

off-site volume group

In Vault, an off-site volume group is a volume group that indicates media is in off-site storage. After Vault ejects media, they are moved logically from the robotic volume group to the off-site volume group.

off-site volume pool

In Vault, an off-site volume pool is a volume pool that Vault searches for backup images to eject and transfer off site. Backup images can be written to an off-site volume pool by a NetBackup backup policy or by Vault.

original backup

An original backup is a backup image created by a NetBackup backup job. NetBackup can create up to four backup copies during a policy backup; all are considered original backups. (A backup image created by the Vault duplication process is a duplicate backup.)


See media access port.


The logical partitions into which a magnetic disk is divided.

path length

Number of characters in a pathname.


The list of directories in the path to a destination directory or file.


The name by which a computer identifies itself when establishing connections to other systems.

pending actions

Special requests for operator assistance to complete a tape mount request when the request causes an error.

persistent frozen image (PFI)

A frozen image of a client file system or volume that is retained on the client disk. Client data can be restored directly from this disk image, even after a system reboot.


Defines the backup characteristics for a group of one or more clients that have similar backup requirements.


A location used for transferring data in or out of a computer.

See media access port.

prepare to discover

In Bare Metal Restore, an operation that runs on the master server and prepares all the resources necessary to do a discovery boot of a client.

prepare to restore

In Bare Metal Restore, an operation that runs on the master server, which prepares all the resources necessary to restore the client.

primary copy

The copy of an image that NetBackup uses to satisfy restores. When NetBackup duplicates an image, the original is designated as the primary copy.

primary disk

In a primary-mirror array configuration, the primary is the disk on which client data is stored, and which is directly accessed by client applications. An exact duplicate of the primary disk is the mirror.

primary node or preferred node

The node in a clustered environment that is intended to be active the majority of the time.


The tasks or functions that a user, system, or application is authorized to perform.


A Vault profile is a template for a vault job; it is a logical construct that contains the rules for selecting, duplicating, and ejecting media. A profile is associated with a specific vault, and at least one profile must exist for every vault.

progress report

Log in which NetBackup records events that occur during user operations.

protection domain

A logical grouping of Bare Metal Restore servers and clients that includes one BMR master server, one or more BMR boot servers, and one or more protected clients.

proxy copy

An extension to the Oracle8i Media Management API, which enables media management software such as NetBackup to perform data transfer directly.

proxy restore

A proxy restore allows you to restore files to which you have write access on a machine other than your desktop. The files must be in a backup image of the machine to which they are being restored.


Quarter-inch-cartridge tape.

queued job

A job that has been added to the list of jobs to be performed.

raw partition

A single section of a raw physical disk device occupying a range of disk sectors without a file system or other hierarchical organization scheme (thus, a "raw" stream of disk sectors). This is different from a block device, over which the file system is mounted.

raw-partition backup

Bit-by-bit backup of a partition of a disk drive on UNIX. On Windows, this is called a disk-image backup.


The program that Apollo clients use to read data from tape during a restore.

recorded media ID

This is an identifier written as part of the label on a volume and used by Enterprise Media Manager (EMM) to ensure that the correct volume is mounted. The recorded media ID should match the external media ID.

Recovery Manager (RMAN)

Oracle's backup and recovery program. RMAN performs backup and restore by making requests to a NetBackup shared library.

redirected restore (different client)

Restoring files to your client when they originally were backed up from a different client. The administrator that uses the interface on the master server can direct a restore to any client (this variation is called a server directed restore).

redirected restore (different path)

Restores files to a directory different than the one from which they were backed up.

redirected restore (different target)

On a Novell NetWare server platform running the NetBackup target version of client software, this operation restores files to a different target than the one from which they were backed up.


A Microsoft Windows database that has configuration information about hardware and user accounts.

release update

A program that corrects a problem or adds a feature to an existing release of software.

remote administration console

A Windows NetBackup client that has the administration interface software installed and can be used to administer NetBackup servers.

remote media server

A media server that is not the master. Only NetBackup Enterprise Server supports remote media servers; NetBackup Server supports only a single server, the master.

remote NDMP backup or restore

A form of three-way backup/restore, in which data travels from an NDMP host on the network to a storage device attached to a NetBackup media server. The storage device on the NetBackup media server is used for NDMP data only. Data movement is controlled by an NDMP "mover agent" (a daemon or service) running on a supported NetBackup media server.


A volume is taken out of a robot without using a move or eject command


Attributes in the Enterprise Media Manager (EMM) volume database including information to show the robotic location. It includes the robot host, robot type, robot number, and slot location.


A Novell NetWare term that refers to a data set on the target. For example, in DOS, resources are drives, directories, and files.

See target service.


(verb) The act of restoring selected files and directories from a previous backup or archive and returning them to their original directory locations (or to a different directory).

(noun) The process of restoring selected files and directories from a previous backup and returning them to their original directory locations (or to a different directory).

retention level

An index number that corresponds to a user-defined retention period. There are 10 levels from which to choose (0 though 9). The retention period associated with each is configurable.

See retention period.

retention period

The length of time that NetBackup keeps backup and archive images. The retention period is specified on the schedule.

robot control host

The host that is provides the robotic control for a robot. A robot control host that is separate from the host on which NetBackup is installed applies only to NetBackup Enterprise Server.

robot number

The unique, logical identification number of a robot.

robot type

Enterprise Media Manager (EMM) classification of robots, according to one of the following: the physical characteristics of the robot, the media type commonly used by that class of robots, or the communication methods used by the underlying robotics.

robotic arm

The component of a robotic library that physically selects the media (tape or optical disk).

robotic control path

The control path to a robot through a SCSI connection.

robotic library

A peripheral device that contains a mechanism for the automated mounting and dismounting of media in tape or optical disk drives. A robot may also be called a robotic library, media changer, automated library, jukebox, or tape stacker.

robotic volume group

In Vault, a volume group that indicates volumes reside in a robot. After Vault ejects a volume, it is moved logically from the robotic volume group to the off-site volume group.


The highest level directory in a hierarchical directory structure. In MS-DOS, the root directory on a drive is designated by a backslash (for example, the root on drive C is C:\). On UNIX, the root directory is designated by a slash (/).

Also, a UNIX user name that has administration capability.


An industry-standard interface for serial communications and sometimes used for communicating with storage peripherals.


See recorded media ID.

SAN (Storage Area Network)

A Fibre Channel-based network connecting servers and storage devices. The storage devices are not attached to servers but to the network itself and are visible to all servers on the network.

SAN media server

A server that can only back up its own data to devices. Backing up of data residing on other clients on a network is not allowed.


Controls when backups can occur in addition to other aspects of the backup, such as the type of backup (full, incremental) and how long NetBackup retains the image.

SCSI reserve or release

A device-level protection that is used by Enterprise Media Manager (EMM) to avoid unintended sharing of tape devices and possible data loss problems.


Small computer system interface. This is a type of parallel interface that is frequently used for communicating with storage peripherals.

secondary disk

See mirror.

server group

A server group is a group of NetBackup media servers and NDMP tape servers used for a common purpose.

See media sharing group.

server independent restore

Restoring files by using a NetBackup server other than the one that was used to write the backup. Because NetBackup Server installs on one system only, this feature is available only with NetBackup Enterprise Server.

server list

The list of servers that a NetBackup client or server refers to when establishing or verifying connections to NetBackup servers. On a Windows server and Microsoft Windows clients, you update the list through a dialog box in the interface. On a UNIX server and UNIX and Macintosh clients, the list is in the bp.conf file. On NetWare target and OS/2 clients, the list is in the bp.ini file.

server-directed restore

The use of the user interface on the master server to restore files to any client. Only the administrator can perform this operation.


A program on a Windows server system that runs in the background and performs some task (for example, starting other programs when they are needed). Services are generally referred to as daemons on UNIX systems.

session (Vault)

A vault session consists of running a profile or profiles.


An instance of NetBackup checking its schedules for backups and determining when the jobs are due to run. For user backups and archives, a session usually consists of a single backup or archive.


One of many snapshot methods included in Advanced Client. ShadowImage is for making snapshots of client data on Hitachi disk arrays.

shared drive

A tape drive that is shared among hosts when the Shared Storage Option (SSO) is installed. SSO applies only to NetBackup Enterprise Server; therefore, a shared drive applies only to NetBackup Enterprise Server.

See Shared Storage Option (SSO).

shared resource tree (SRT)

In Bare Metal Restore, a compilation source of baseline system resources, including the means to rebuild the client system and restore all system files.

Shared Storage Option (SSO)

A separately priced Symantec software option that allows tape drives (standalone or in a robotic library) to be shared dynamically among multiple NetBackup and Storage Migrator servers.

This option is supported only on NetBackup Enterprise Server.


Storage management data requestor, a Novell NetWare program that provides its services transparently to all SMS modules and lets remote and local modules communicate with one another.


Novell NetWare storage management services.

snapshot method

A set of routines for creating a snapshot.

snapshot mirror

An exact copy of a primary volume at a particular moment, reproduced on a physically separate device. Snapshot mirrors are created by the Veritas Volume Manager (VxVM).

snapshot source

(Formerly known as frozen image source.) Designates the entity (file system, raw partition, or logical volume) to which a snapshot method is applied. NetBackup automatically selects the snapshot source based on the entries in the policy's Backup Selections list.


A stable disk copy of the data prior to backup. A snapshot is created very rapidly, causing minimal impact on other applications. There are two basic types: copy-on-write and mirror.

source volume group

In Vault, a volume group from which Vault selects backup images to duplicate. Selecting a source volume group restricts the search for images to those in that volume group rather than images in all volume groups. Usually, a source volume group is specified if your master server has access to multiple robots and you want to duplicate images that reside on media in one robot to media in another robot. The images that are read are in the source volume group in one robot; the images are written to media in the robotic volume group in another robot.

If you do not do duplication in Vault, you do not hve to specify a source volume group.


See Shared Storage Option (SSO).


Usually a small robotic library that contains one drive only.

See robotic library.


A qualifier used with drives and media to indicate that they are not associated with a robot. For example, a standalone tape drive is one in which you must manually find and insert tapes before you use them. A standalone volume is one that is located in a standalone drive or is stored outside of a drive and designated as standalone in the volume configuration.

standard device

Refers to the primary disk in an EMC primary-mirror disk array.

See primary disk.

status code

A numerical code, usually accompanied by a troubleshooting message, that indicates the outcome of an operation.

storage migrator

Refers to the Veritas Storage Migrator line of hierarchical storage management products for UNIX and Windows. These products make extra room on a disk by transparently moving data to other storage and then transparently retrieving the data when it is needed by a user or application.

storage server

An entity that writes data to and reads data from disk storage.

storage unit

Refers to a storage device where NetBackup or Storage Migrator stores files. It can be a set of drives in a robot or consist of one or more single tape drives that connect to the same host.

SUSPENDED media state

If a volume is SUSPENDED, NetBackup can restore from it but cannot use it for backups. NetBackup retains a record of the media ID until the last backup image on the volume expires.


The Symmetrix Application Programming Interface from EMC that allows NetBackup to communicate with Symmetrix disk arrays, Fastrax, and the Fastrax-attached tape drives.

symbolic link

On a UNIX system, this is a pointer to the name of the file that has the source data.


The Symmetrix Command Line Interface from EMC that allows NetBackup to communicate with Symmetrix disk arrays, Fastrax, and the Fastrax-attached tape drives.


A line of EMC disk storage systems (disk arrays). In a NetBackup for EMC Fastrax configuration, the data to be backed up resides on a Symmetrix storage system. For a backup, the data is moved from the Symmetrix storage through a Fastrax unit to a Fastrax-attached tape drive.

synthetic backup

A synthetic full backup is a backup assembled from a previous, traditional (non-synthesized) full backup, and subsequent differential backups or a cumulative incremental backup. A client can then use the synthesized backup to restore files and directories in the same way that a client restores from a traditional backup.

system administrator

A person with typical UNIX or Windows administrator privileges and responsibilities.

tape format

The format that an application uses to write data on a tape.

tape marks

A mark that is recorded between backup images on a tape.

tape overhead

The space required for data that is not part of the backup images. For example, tape marks and catalogs of what are on the tape are considered overhead.

tape spanning

Using more than one tape to store a single backup image.


TapeAlert is a tape drive status monitoring and messaging utility. The TapeAlert utility can detect tape quality problems, defects in tape drive hardware, and the need to perform cleaning operations. TapeAlert is a function of the tape drive.


Tape Archive program that NetBackup uses to extract backup images during a restore.

Target Service Agent

A Target-service agent is a Novell NetWare agent that prepares the target's data for SMS during a backup and for the target during a restore.

target service

A Novell NetWare service that needs storage management. The SMS views all services (for example, print services, communication services, workstations) as targets.


See target service.

Third-Party Copy Device

A backup agent on the SAN that operates on behalf of backup applications. The third-party copy device receives backup data from a disk attached to Fibre Channel and sends it to a storage device, by using the SCSI Extended Copy command. The third-party copy device is sometimes called a copy manager, third-party copy engine, or data mover. In SAN hardware configurations, a third-party copy device can be implemented as part of a bridge, router, or storage device. The third-party copy device may or may not be the device to which the storage units are connected.

An offhost backup method in NetBackup ServerFree Agent that allows backups to be made by means of a backup agent on the SAN.

three-way backup or restore

Data travels between an NDMP host and a storage device that is attached to another NDMP host (or to a NetBackup media server) on the network. This contrasts with local NDMP backup or restore, in which the data travels between an NDMP host's disk and a storage device directly attached to the same NDMP host.


One of many snapshot methods included in Advanced Client. TimeFinder is for making snapshots of client data on EMC disk arrays.

timeout period

The period of time that an application has allotted for an event to occur.


See true image restore.

TL4 - Tape Library 4MM

An Enterprise Media Manager (EMM) designation for a category of robot. For the specific vendor types and models in this category, see the Symantec support Web site.

TLD - Tape Library DLT

An Enterprise Media Manager (EMM) designation for a category of robot. For the specific vendor types and models in this category, see the Symantec support Web site.

TLH - Tape Library Half-inch

An Enterprise Media Manager (EMM) designation for a category of robot. For the specific vendor types and models in this category, see the Symantec support Web site.

This robot type is supported only by NetBackup Enterprise Server.

TLM - Tape Library Multimedia

An Enterprise Media Manager (EMM) designation for a category of robot. For the specific vendor types and models in this category, see the Symantec support Web site.

This robot type is supported only by NetBackup Enterprise Server.


An Enterprise Media Manager (EMM) administration utility for configuring devices that is started from the command line. On UNIX, it has a character-based menu interface that can be run from terminals that do not have X Windows capabilities. tpconfig also has a command line interface.

transfer rate

The rate at which computer information is transferred between a source and a destination.


See robotic arm.

true image restore

Restores the contents of a directory to what it was at the time of any scheduled full or incremental backup. Previously deleted files are ignored.


See Target Service Agent.

ufs file system

This is the UNIX File System (ufs), which is the default file system type on Sun Solaris. The ufs file system was formerly the Berkeley Fast File System.

unassigned media

Media that contain no valid images. A piece of unassigned media has an entry in the volumes database but no entries in the images database. Unassigned Media do not have a "time assigned" in the Media section of the GUI.

unlabeled volume

A volume that does not have recorded media IDs.

unlogged database (NetBackup for Lotus Notes Agents)

An unlogged database is one in which transaction logging is not enabled, or has been disabled for specific server database(s).

Unlogged Domino Server databases are backed up when a full backup, a differential-incremental backup or a cumulative-incremental backup is performed. The database can be restored only to the point of the latest database backup.

vault process

Vaulting is the process of choosing backup images to duplicate or eject, optionally duplicating backups, ejecting duplicate or original media, storing it at an offsite location, and later returning expired media to your robot. Vaulting is an integral part of the disaster recovery process.


In the context of the NetBackup Vault, a vault is logical entity associated with a particular robot that acts as a designated holding place for backups that eventually are sent to a physical offsite vault. The term "vault" is used to refer both to the process and to the physical storage location of a set of tapes offsite.


Vault is a separately-priced NetBackup option that provides off-site backup management. Vault automates the process of off-site media rotation (a critical component of any backup or disaster recovery strategy). Vault manages off-site storage and retrieval of media for original backups, duplicate backups, and catalog backups. Additionally, NetBackup Vault generates reports to track the location and content of each piece of media.

verbose flag

Configuration file entry that causes a higher level of detail to be written in the logs.


An operation that compares the list of files that are actually on a volume with what NetBackup has recorded as being on it. The data that is on the media is not verified.

virtual circuit (VC)

The connection, between an EMC Symmetrix array and a tape drive, through which the backup image flows during a Fastrax backup.

virtual host name

The name of the cluster as known by the NetBackup environment. This is the name that the clients have in their server list. It is also the name that the server uses when communicating to the client nodes.

virtual IP address

The IP address of the cluster. The address that the virtual server name should resolve to.


An Enterprise Media Manager (EMM) configuration file with entries that include the servers that can manage local devices and default media ID prefixes for media that do not contain barcodes.


An Enterprise Media Manager (EMM) administrator utility for managing volumes. It runs on UNIX and has a character-based, menu interface that can be run from terminals.


The Enterprise Media Manager (EMM) volume daemon on UNIX and the NetBackup Volume Manager service on Windows.

volume configuration

Refers to configuration information that is stored in the Media Manager EMM database.

volume database

This database is the repository for all Enterprise Media Manager (EMM) volume configuration information about the media in storage devices.

The volume database host is an Enterprise Media Manager (EMM) host where this database is stored.

volume group

A logical grouping that identifies a set of volumes that reside at the same physical location.

volume pool

A logical grouping that identifies a set of volumes by usage.


Enterprise Media Manager (EMM) volumes are logical units of data storage or cleaning capability on media that are assigned media IDs and other attributes, which are recorded in the Enterprise Media Manager (EMM) volume database.

A virtual device configured over raw physical disk devices. Consists of a block and character device.

VxMS (Veritas Federated Mapping Services)

A library of routines (methods) used by NetBackup ServerFree Agent to obtain the physical addresses of logical disk objects such as files and volumes.

wakeup interval

The time interval at which NetBackup checks for backups that are due.

wildcard characters

Characters that can be used to represent other characters in searches.

Windows Display Console

A NetBackup-Java interface program that runs on Windows platforms that are supported by Symantec. Users can start this interface on their local system, connect to a UNIX system that has the NetBackup-Java software installed, and then perform any user operations that their permissions allow.


(adjective) Used to describe a specific product or clarify a term, for example Windows 2000, Windows .NET, Windows servers, Windows clients, or Windows GUI.

WORM media

Write-once, read-many media. May be tape or optical disks.


The X Windows-based backup, archive, and restore program for users on NetBackup UNIX clients. (xbp was retired beginning with NetBackup 6.0.)