backup

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backup

[′bak‚əp]
(building construction)
That part of a masonry wall behind the exterior facing.
(civil engineering)
Overflow in a drain or piping system, due to stoppage.
(computer science)
Logical or physical facilities to aid the process of restarting a computer system and recovering the information in it following a failure.
The provision of such facilities.
(engineering)
An item under development intended to perform the same general functions that another item also under development performs.
A compressible material used behind a sealant to reduce its depth and to support the sealant against sag or indentation.
(graphic arts)
An image printed on the reverse side of a printed sheet.
The printing of such an image.
(metallurgy)
A support used to balance the upsetting force in the workpieces during flash welding.
(petroleum engineering)
During drilling, the holding of one section of pipe while another is screwed out of it or into it.

backup

1. That part of a masonry wall behind the exterior facing.
2. A compressible material used behind a sealant to reduce its depth and to support the sealant against sag or indentation.
3. Overflow in a drain or piping system, due to stoppage.
4. A condition where waste water flows back into another fixture or compartment or water line (but does not flow back into the potable water system).

backup

(operating system)
("back up" when used as a verb) A spare copy of a file, file system, or other resource for use in the event of failure or loss of the original.

The term commonly refers to a copy of the files on a computer's disks, made periodically and kept on magnetic tape or other removable medium (also called a "dump").

This essential precaution is neglected by most new computer users until the first time they experience a disk crash or accidentally delete the only copy of the file they have been working on for the last six months. Ideally the backup copies should be kept at a different site or in a fire safe since, though your hardware may be insured against fire, the data on it is almost certainly neither insured nor easily replaced.

See also backup software, differential backup, incremental backup, full backup. Compare archive, source code management.

backup

(1) A duplicate copy of data or of an entire storage drive on a separate storage medium. "Backup" is the noun; "back up" is the verb. See backup software, backup types, backup storage, copy data, backup and restore, disaster recovery and LAN-free backup.

(2) Additional hardware resources ready to take over if the main system fails. See fault tolerant.
References in periodicals archive ?
Locate backup assets and mount tapes via robotic tape devices -- making backup and recovery management seamless and easy;
With new local-backup capabilities, Altiris and Dell seek to provide IT administrators and end users with a complete backup and recovery solution to address the threat of data loss and help ensure business continuity regardless of connectivity and bandwidth constraints.
Advances in data replication and security technologies, combined with reduced bandwidth costs, allow backup and recovery service providers to offer online backup, recovery and electronic vaulting to businesses.
This announcement comes on the heels of other high profile BakBone victories including the Diogenes Labs--Storage Magazine Quality Awards, where BakBone took home top honors in the enterprise-class backup and recovery category and the much sought after 2006 Sun Storage Partner of the Year.
Specific utilities in the CA Backup and Recovery Solution for DB2 suite include Fast Recover, Log Analyzer, LogCompress, Merge/Modify, Quick Copy, Recovery Analyzer, and SoftBase Database Rely.
EMC will continue to meet the demands of this rapidly growing market through high-performance disk-based backup and recovery solutions that are easy-to-deploy and use.
But SMB is hardly immune--their business survival can depend on dependable and consistent backup and recovery operations.
The creator of the first commercially available hot backup disaster recovery tool for VMware ESX Server, Vizioncore's solutions now include esxRanger Professional, the leading backup and recovery tool for VMware Infrastructure; esxCharter, a real-time monitoring tool that provides key host metrics; esxReplicator, which provides host-level replication of virtual machines; and esxMigrator, which supports automated migration to the VMware Infrastructure 3.
Storage administrators must choose to implement asynchronous or synchronous mirroring as tradeoffs exist for each case and all increase the total storage requirements for the backup and recovery application.
For the enterprise backup and recovery software program, 500 respondents identified as backup and recovery users were assessed across five main categories: sales-force competence, product features, initial product quality, product reliability, and technical support.
The growing urgency of backup and recovery issues comes as enterprises are increasingly under regulatory pressure--the governance requirements of Sarbanes-Oxley, the privacy requirements of HIPAA, the homeland defense measures of The USA Patriot Act, the European Data Protection Act, the procedural rules of FDA drug development and testing policies, the new e-commerce laws passed in over 40 countries around the world, not to mention FISMA, GLBA, and NERC.
But despite these advancements, the market has taken clear steps over the past couple of years away from tape and toward disk for backup and recovery.