Glossary

This glossary contains terms and definitions that are found in this manual. Most of the terms are specific to IBM Informix Storage Manager.

8mm

Represents 8-millimeter magnetic tape.

administrative user

A user on the ISM Administrators list. This user can make changes to the ISM server properties.

backup volume

Backup media, such as magnetic tape or optical disk.

bootstrap

Information needed to recover the ISM catalog after a disk failure.

clone

The process by which ISM makes an exact copy of saved data (save sets). ISM can clone individual save sets or the entire contents of a storage volume.

clone volume

A duplicated volume. ISM tracks cloned volumes in the same way that it tracks the original volumes. Save sets of different types cannot be mixed on one volume; for example, backup versus clone-type volumes.

command-line interface

The prompt where you enter commands.

device

The storage device (tape drive, disk drive, optical disk drive, or file type) connected to the ISM server. The device is used to back up and recover data.

file-type device

A file system on the ISM server that is used as a storage device.

file-type volume

A storage volume that is mounted on a file-type device.

HDR

See High-Availability Data Replication.

High-Availability Data Replication

Copies data to a database server on another computer. You can also use ON–Bar with HDR to restore data on another computer.

himt

Half-inch magnetic tape.

Imported restore

Allows for the transfer of data from one instance of a database server to the same instance on a foreign host. In addition to completing the imported restore process, the imported restore is also a subset of these three processes: disaster recovery, database server upgrade, and initialization of HDR.

IBM Informix Server Administrator

A browser-based tool that provides web-based system administration for Informix database servers. For information, see the ISA online help and onscreen instructions.

IBM Informix Storage Manager

Receives backup and restore requests from ON–Bar and directs your data to and from storage volumes that are mounted on storage devices.

ISA

See IBM Informix Server Administrator.

ISM

See IBM Informix Storage Manager.

ISM command-line utilities

Commands that you enter at the command-line interface to administer the ISM server.

ISM server

The UNIX or Windows computer that runs the ISM server software.

ixbar.servernum

An emergency boot file that Dynamic Server uses. On Extended Parallel Server, the emergency boot files consist of a backup boot file, a restore boot file, and a merge boot file.

Legato NetWorker®

A network storage management solution that protects and helps to manage data across an entire network of computers. It manages your data and creates a database of saved data, to make it easy to locate data for recovery. As the network and amount of data grow, Legato NetWorker provides the capacity and performance to handle the load.

media

Magnetic tape, hard disk, or optical disks used to back up database logs and storage spaces. See also backup volume.

ON-Bar bootstrap

Emergency boot files that contain information needed to perform a cold restore. These files are updated after every backup. They replace the sysutils tables during a cold restore so ON–Bar can request the correct backup object from ISM. See also ixbar.servernum.

qic

Quarter-inch cartridge tape.

recycle

To relabel a volume whose data retention period has expired.

recycle status

A volume status that indicates whether the retention periods for all the save sets on a volume have expired.

retention period

ISM server setting that determines how long save-set entries are retained in the ISM catalog and are thus recoverable by ON–Bar.

retention status

A save-set status that indicates whether the retention period for a save set has expired.

save

Saves files, including directories or entire filesystems, to the ISM server.

savefs

Saves a filesystem (using save) to an ISM server. Mount points are not crossed, and symbolic links are not followed.

savegrp

Starts a group of ISM clients saving their filesystems. The savegrp command runs a group of ISM clients through the process of saving their filesystems (using save). Another way to start a save group is to execute the ism_catalog command or the onbar script that includes the ism_catalog command.

save set

A collection of data that is produced by a single data stream and backed up to storage media. The save set is treated as a single entity on the storage media.

save-set ID

An internal identification number that ISM assigns to a save set. Use the save-set ID (ssid) for disaster recovery.

ssid

See save-set ID.

stand-alone device

A storage device that contains a single drive for backing up data. Stand-alone devices cannot store or automatically load backup volumes.

storage space

An area of disk space where data that the database server manages is stored. Dbspaces, blobspaces, and sbspaces are types of storage spaces.

XBSA

See X/Open Backup Services Application Programming Interface.

X/Open Backup Services Application Programming Interface

Provides a programming interface and functions that manage backup and restore operations. XBSA connects ISM with the database server.

volume

Backup media, such as magnetic tape, disk-drive partition, or optical disk. See also file-type volume.

volume name

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

volume pool

A feature that allows you to sort backup storage spaces to selected volumes. A volume pool contains a collection of backup volumes to which specific storage spaces have been backed up.