backup copy - определение. Что такое backup copy
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Что (кто) такое backup copy - определение

COPY OF COMPUTER DATA TAKEN AND STORED SO THAT IT MAY BE USED TO RESTORE THE ORIGINAL
Back up; Backups; Data backup; Backup and Recovery; Continuous backup; Near Continuous Backup; Near Continuous Data Protection; Backup copy; Backup & recovery; Backup storage; Backup types; Backup disk; Backup device; Backup tape; Full backup; Back-up; Back-Up; Back-Ups; BackUps; BackUp; Continuous Vaulting; Near continuous backup; Near-continuous backup; Near-continuous data protection; Near continuous data protection; Enterprise client-server backup; Backup and disaster recovery appliance; BDR appliance; BDR device; Backup and Disaster Recovery appliance; Backup copying
  • From left to right, a [[DVD]] disc in plastic cover, a USB flash drive and an [[external hard drive]]

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. (2004-03-16)
backup         
¦ noun
1. material or moral support.
a reserve.
2. Computing the procedure for backing up data.
a copy made in such a way.
3. N. Amer. a traffic jam.
back-up         
see backup

Википедия

Backup

In information technology, a backup, or data backup is a copy of computer data taken and stored elsewhere so that it may be used to restore the original after a data loss event. The verb form, referring to the process of doing so, is "back up", whereas the noun and adjective form is "backup". Backups can be used to recover data after its loss from data deletion or corruption, or to recover data from an earlier time. Backups provide a simple form of disaster recovery; however not all backup systems are able to reconstitute a computer system or other complex configuration such as a computer cluster, active directory server, or database server.

A backup system contains at least one copy of all data considered worth saving. The data storage requirements can be large. An information repository model may be used to provide structure to this storage. There are different types of data storage devices used for copying backups of data that is already in secondary storage onto archive files. There are also different ways these devices can be arranged to provide geographic dispersion, data security, and portability.

Data is selected, extracted, and manipulated for storage. The process can include methods for dealing with live data, including open files, as well as compression, encryption, and de-duplication. Additional techniques apply to enterprise client-server backup. Backup schemes may include dry runs that validate the reliability of the data being backed up. There are limitations and human factors involved in any backup scheme.

Примеры употребления для backup copy
1. But many CDs now come with copy protection, and while it is generally considered legal in most places to make a backup copy for personal use, the new protection systems mean you won‘t be able to convert that CD into an MP3 file for your iPod.
2. Only a chop shop will hand the keys back as soon as the mechanic lays down his tools. b Make sure the garage keeps a record of all servicing and tests on the car, and make a backup copy for yourself so you have access to the details. b Before choosing a garage, it is worth consulting with friends who have some experience with the matter or with the original owner of the car, if it was purchased second–hand.