Many factors may help dictate what backup location or destination are used.
This type of backup uses an additional drive in the same system as the target location for the backed up data.
This type of backup can be effective against data lost if the drive which contains the original data becomes damaged.
This option is almost identical to the option above, only that the backup data is not stored on a different drive.
This same weaknesses above apply with one additional weakness. If the drive fails, both the original data AND the backup copy(s) may be lost.
This is only slightly better than no backup at all.
This works by storing the backed up data on another computer connected to a network.
This is effective against data loss due to a drive failure or complete system failure of the original data system.
Can also be used to describe copying data to another computer by a means other than a network connection (i.e., removable media).
This is by far the most common data backup in use.
This involves archiving the data files to some type of media that can be removed from the computer. Better yet, remove the backups from the building.
Removable media includes tapes, diskettes, CD and DVD.
This type of backup affords the most economical method of backups.
The drawback to this is that it still requires operator participation. This is one of the weakest links to this type.
Remote backups are rapidly becoming the most popular backup types.
This involves backing up the data to an off site location via an internet connection.
This is typically no practical for entire system backups. It is however very feasible for user data backups.
A typical scenario includes performing a Full backup once a week (or month) then doing incremental backups every day.
This gets the data off site which protects it from localized disasters like fire, flood, theft etc...
Most of these types of systems use encryption to protect the contents of the data from potential compromise.
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http://www.tje.net/PCSupport/index.html?backuplocations.htm
Page content was last updated: 4/22/2009
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