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What is volume shadow service

Posted on 2009-03-30
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Last Modified: 2012-05-06
What is volume shadow service
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Question by:madhurikv
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Expert Comment

by:dragonfirez
ID: 24024582
Hi,

http://en.wikipedia.org/wiki/Shadow_Copy

VSS takes snapshots of a file or folder for backup purposes.  Volume Shadow copy is also very handy because it helps resolved locked file errors when performing backups.

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by:madhurikv
ID: 24024650
locked file errors??? what is this...
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Accepted Solution

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dragonfirez earned 30 total points
ID: 24024684
Sometimes when a backup program is trying to copy a file, Windows won't allow it because the file maybe "in use"

Suppose, you had a document call test.doc and you were editing it in Microsoft Word.  If you had the file open while a backup program was trying to back it up, the program would give you and error saying the file was locked / in use.  Volume Shadow copy helps relieve this by making a copy (or snapshot) of the file in the background.  So when the backup program tries to back it up, it can backup the file made by VSS and not have a problem
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