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Old 02-24-2010, 01:37 PM   #1
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Unhappy What is the difference between Archiving and Backup of data?

I am a little confused in distinguishing Backup, compressing and Archiving data. Help me to figure out how these can be useful.
Old 02-24-2010, 01:43 PM   #2
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Originally Posted by kris_rocks! View Post
I am a little confused in distinguishing Backup, compressing and Archiving data. Help me to figure out how these can be useful.
Archiving in software terms usually means saving a directory tree as a single file. Compression may or may not be applied to save space. Backing up usually involves saving said archive (or just the collection of files) somewhere out of harms way, like another HD, external drive, CD, network, etc.
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Old 02-24-2010, 01:43 PM   #3
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Compressing is separate from archiving and backing up data. Compressing is just what you would expect-- compressing a given data's size while maintaining what it is... often times it is done to both archives and backups.

A backup is a copy of your data in some form (tape, another hd, off-site storage, etc.)

An archive is usually an old backup that is being saved for future use or other purposes, but often can be used as a backup.

(current data)->(daily/weekly/month backups)->(previous month/years)

For example, I often backup to a remote hard drive and then archive those backups off to tape once a month for long term storage.

You'll find the term used loosly though, sometimes it refers to a duplicate of all incoming data like a mail archiver maintains, sometimes to a backup, or a compressed file.

Last edited by rweaver; 02-24-2010 at 01:45 PM.
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