| The most important task of any system
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| | Both strategies can, and probably should,
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| administrator is backing up the systems
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| | be combined. An archival-only strategy
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| they are responsible for. Not putting the
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| | requires the system administrators to
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| system up, not keeping it running,
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| | reinstall and reconfigure the operating
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| backing it up and being able to restore
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| | system prior to restoring the data; this
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| is primary.
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| | takes longer and is more error prone.
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| A system with no backup cannot be relied
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| | Any backup strategy must be tested.
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| upon for any real purpose, because if
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| | A DR backup is tested by restoring a
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| anything goes wrong your data is gone.
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| | system backup onto a fresh system to make
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| Something always goes wrong eventually,
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| | sure you can recover from an emergency.
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| and without good backups all of your
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| | Archival strategies are tested by
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| work, and possible your entire business
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| | retrieving files and verifying that you
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| is just plain gone.
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| | can find the files you need and that they
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| A good backup strategy is composed of
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| | are readable once restored. An untested
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| backup, storage, verification, and
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| | backup strategy is usually a complete
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| restoration. The backup component covers
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| | waste of time and money.
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| selection of method and which data to
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| | For web hosting clients, you will usually
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| backup (all of it by choice).
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| | do your backups with the cPanel
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| Storage covers both what media you back
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| | administrative interface.cPanel will let
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| up onto as well as where you keep them
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| | you backup your entire hosted site, your
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| (if your building burns down, tapes kept
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| | databases, or your home directory (which
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| in the server room will be useless).
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| | will contain your website but not the
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| Verification is a crucial component of a
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| | data behind it).
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| backup strategy, you have to know you
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| | To perform a backup you simply access the
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| have usable data.
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| | Backup control panel and select a type of
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| Lastly, you need to be able to get the
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| | backup. The system performs the backup
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| data back to where it can be used.
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| | and downloads the file to your local
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| There are two main strategies for
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| | system.
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| backups: Disaster Recovery and Archival.
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| | These backups can be restored through the
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| DR backups are designed to restore a
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| | same interface.
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| system to a working state. To do this you
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| | To test, you would create a new hosted
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| backup the entire system so that you can
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| | site and restore your backups to it.
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| restore it onto another machine to get a
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| | The downloaded backup files are important
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| working system.
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| | (possibly confidential) data and should
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| An archival strategy is concerned with
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| | be integrated into your local backup
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| retrieving historical data ('give me the
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| | strategy.
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| customer database as it appeared at the
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| | At the least, burn them to disks if you
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| end of last year') and not with restoring
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| | can't arrange to include them in your
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| a working system.
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| | main backups.
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