How to Handle Hard Drive Failures

Author: Ethan Ace, Published on Feb 13, 2012

No matter how well maintained a surveillance system is, hard drives eventually fail. Indeed, A recent member's poll showed that most find hard drive failures to be 'a common and significant problem'. What happens when a hard drive fails can vary significantly depending on the system type used, the priority of the system and the concerns of the end user. In this note, we examine the most common real world issues and provide guidance on how to best deal with hard drive failures.

Impact of Hard Dive Failure

*** **** ** ** ****** * ****** ******** *** ** a ****** ******* ** *** ************ ** *** *******. ***** are ***** ******* *********:

  • ****** ***** *** ** *** ******** *****: ** ******* ***** *** *** **** ***** *** *** server ** ***/*** **, ** **** ** ***** *******, ******** are **** ********. **** ** *** ***** ******* ** *** entire ****** ***** ****, **** ***** ****** ** **** **** or ******** *****. *** **** ** *********** **** ***** ** can ** ******** ** *** ********, ** * ***** **** the ** ********.
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Client ******** ** *** *******

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******* **********

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********

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Potential *********

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*** ***** ***** ***** ************ ** ******** ** ***********, **** drive ******* ** *********** **** ** * ****. *** ***** in ********** ** ****** *********, *** *** ******** ** ***** video *** ******* *********, ** ********* **** ***** ******* ***** place **** ** ********* ** ***** ***********. *** **** ******, these ***** ****** ****** *** **** *******, ********* **** * and ******, ** ***** ******* ******** **** ***** ********.

***************

*** ***** ** ***** ************ *******, *** **** ****** ** to *** **** **** ******** ****** *** ** *** *****. For **********, *********** *** *****, ***** ***** **** * (**** mirroring) *** ********* ******** $*** ***. *** *** **** *** ******* ** ***** *** *******, however, ** ***** ****** ****** ************* ****** **********.

*** ***** ** **********-***** ************ *******, **** ** **** ******. The **** ******* ** *** **** *****'* *********** ****** * rebuild. ** * ***** *****, ** **** ** ****. *******, low *********** ****** *** *********** **** **** * ***** ** read/write ********** **** *** *** ****** * *******, ***** *** take *-** ***** ** ****. ***** ****** ****** ** ****, and ****** **** ******* **** *********** **** ****** **** ****** rebuilds.

*** *** *****, ** ***** ** ********, ********* * ********* platform ***** **** ****** **** ** **** ***** ******* ** always ***********. ********* ************ ** *** **** *** ** ******* against **** *****.

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