How Costly are Hard Drive Failures?

Author: John Honovich, Published on Apr 29, 2009

Storage tends to be one of the more costly and problematic parts of video surveillance systems. Most video surveillance systems, even today, do not employ storage redundancy. When drives break, systems can fail and evidence can be lost.

This fosters an ongoing debate about the cost of hard drive failures and the value of doing something about them.
In this special premium report, we break down the issue into 5 critical questions:
  • How often do hard drives fail?
  • How do IP video systems impact hard drive failures?
  • What is the service cost of hard drive failures?
  • What is the cost of losing evidence from hard drive failures?
  • What is the business case for storage redundancy?

******* ***** ** ** *** ** *** **** ****** *** problematic ***** ** ***** ************ *******. **** ***** ************ *******, even *****, ** *** ****** ******* **********. **** ****** *****, systems *** **** *** ******** *** ** ****.

**** ******* ** ******* ****** ***** *** **** ** **** drive ******** *** *** ***** ** ***** ********* ***** ****.
** **** ******* ******* ******, ** ***** **** *** ***** into * ******** *********:
  • *** ***** ** **** ****** ****?
  • *** ** ** ***** ******* ****** **** ***** ********?
  • **** ** *** ******* **** ** **** ***** ********?
  • **** ** *** **** ** ****** ******** **** **** ***** failures?
  • **** ** *** ******** **** *** ******* **********?

[***************]

How ***** ** **** ****** ****?

** ********* *** ****** **** ***** ******** ***, ** **** to ******** *** ****** **** *** ** ****. ******** ********** from ************* *** *********** ***** **** *% ** **% ** drives ******* *** ****. ****'* * **** **** ***** *** it **** ******* ********** *********** ****** **** *** ****. ***** issues *******:

  • *********** - ** ***** ************, ********* *** ***** ****** ** hostile ************. ******** ** *********** * **** ****: ** ******* wedged ******* ****** ********, ** *** *****, ********** * *****'* desk, **** ** * ********* ** *** *****, ******* ** dirt *** ** **** ** ***** **********, ** *** ************ and *** **** ******* ************ **** ** */ ** *. Environmentally ********** **** ******* *** *** *** ****.
  • ********** - *** ******* ** *** ********* **** *** *** hard ****** *** **** ************: *** **** ****** *** *** type ** ******* ****. ***** ********* ***** **** *** *** PCs ** ********** ***** *******.
  • *** ** **** ****** - *** ***** *** **** *****, the **** ****** ** ** ** ****
  • *** **** *** ************ ** **** ****** - ******* **** drives *** ***** ** ** **** ******** **** ******
*** ***** *** *** ***** ************ ********. *** **** *** are ******* ****** **** **** ******. *** **** ******* *********** on **** ***** ********, *** *** ************ ****** ** **** ***** *********** ********* ****** *****.
**** ****** ****** *** ****? ********* *** ******* ****** ***** numbers *** ******* ******* ****** ****** **** ** **** ***** cases. ** ** **********, **** ***** ******** **** ** ** quite *** - ***** *%, **** * *** ************ **********.
  • ************ ******** ********: *** ********, **** * *** ** **********, we *** * ***** **** ***** ******** ** * ****** only ** **** ***** ** **** ** *** * ******* with * ***** ** ***** **** *** ************.
  • ******* ************: **** ********* **** ****** ** ****** ******* ************, hard ***** ******** ********** ********* *************.
** ****, * *** ******* * **** ***** ** ********** when ** ***** ** ********. *******, * ******* *** *% as ** ********.

How ** ** ***** ******* ****** **** ***** ********?

** ***** ****** ****** *** ****** ** **** ***** ******** in *** ****:

  • End *** ********* ** ******** ** *** ******** ****** ******: The environmental problems I described above is often motivated by the need to headend analog video systems next to the guard (especially because years ago systems were not well networked). With the rise of IP, the need to terminate coax in a single location next to the guards should decrease. This, in turn, should increase reliability simply by moving the hard drives into data centers or at least climate controlled, clean environments.
  • Enable ***** ******* ** ** ********** ** *****, ****** *****: Providing storage redundancy requires an additional fixed cost (for the additional hard drives and controller/software to perform the redundancy). If you only have a few cameras in a location, the overhead cost for redundancy can be very high. IP video is making it easier to send video to a central location to reduce this overhead. This is not a cure-all as sending surveillance video across wide area networks remains financially infeasible for most. However, in many cases this should help make it easier to justify the use of storage redundancy.

What ** *** ******* **** ** **** ***** ********?

*** ****** **** ** **** ***** ******** ** ********* *** multiple ** *** ******* **** *** *** ***** **** ** service (**** ****** ******* **** * - * **** ********** and *** ********** *********** ******)

*** ***** ** ******* * ******* *** **** ************ **** nearly **** ** $*** ***+. **** ******* ** *** ******** proximity ** ******* *********** ** *** ********. ** *********** ***** (like *******), **** ******** ** *******. ** ************* ***** (**** convenience ******), **** ******** *** ** ******** ** **********. [*************, decentralized ***** ********* **** ***** ****** ****** ** ** ** harder ** ******* *** *** ** ********** - ********* ** the **** *******].

** ***********, ***'* *** * ******** *** * **** ******, each **** ***** *** * *% ******* *********** *** ***** $250 ** *******. **** * * **** ******, *** ***** direct **** ** ********* **** ***** ******** *** **** ******** is ***** $*** - * ****** ************* ****** ******** ** the **** ** *** ********.

***** *** * ***** ********** **** *** ************* ******** ****:

  • * *** ******* *** *** ** *** ***** ********** *********** on * **** ***** ******* **********. ** * ***** ***** in **** *****, *** ******** **** ** ****** ** **** to ****** (***** *** **** ***** ******* ** ********). ********* often ******* * ********* ******** ** ** ******** *** **** swamped *** **** *** ******** **** ** *****. **** *** triple *** **** ** *********.
  • * *** ******* ******* **** ** **** ** ** **** back ** *** ******* ** **** **** ****** ********. **** creates *** **** ******* *** ******** ** **** *********.

What ** *** **** ** ****** ******** **** **** ***** ********?

**** **** ** *** *********** ** *** ********** *** ******* impact ** ****** ********. *** **** ** ******, *** ****** must *****.

  • *****, * **** ***** ***** ** ****.
  • ********, *** **** ****** ** ***** ****** ** **** **** drive **** ******* ******** ****** **** *** *** ********** **** exported.

** ** *** ****** ****** **** ** ****** ******** ** understanding *** ***** ** **** ****** *******. *** **** *****, the *********** ** ****** ******** ******** **** * **** ***** failure ** ***** ***. ** ** ********** ******* **** ******** traded ************, * ***** *** **** **** **% ** *** hard ***** ******** ******** ** *** ******** ***** **** *** only * ******** ** **** **** ******* ***** ***** *** loss ******** *** ***********.

**** ** *** ******** ** ***** **** ******, **** *-****. If *** **** * **** ***** **** ***** ** ********* e-mail, *** ********** **** **** ******* * ***** ******* ** close ** ***% - ****** ******* *** *********** ***** ** high *** ***** ******** ** ******* ****** ** *-*****. ** video ************, ***** (** **** * **), ******** ********** * few ***** ** * ***** ******* - ****** *** ** which ** ********** ** *** *************.

*** ** *** ******* ** ******** *** ***** ** ******** lost? * ********* *********** *** **** ***** ******* ****, *** number ** **** ******, *** *********** ** ****** ******** ** a ***** **** ***** *** *** ********* ***** ** *** evidence ****. *** * ******** **** * **** ******, ******** 5% ****** **** ***** ******* ****, **% *********** **** * hard ***** *** ******** ******** *** $*,*** ***** ** **** evidence, ** * * **** ******, *** **** ******** ** $150.

***** *** *** ****** *** *******, **** ** ******* * common *********** *******: **** ******** ******** *** ******* ** ****** the **** ** **** ****** ******* ******* *** *********** ** losing ******** ******** ** ****** ***.

***** *** * ********* ********** ** ****:

  • **** ************* **** ******** ** ************ ************ ***** ********* *****. Losing * **** ***** *** ****** ** ***** ** ***** penalties.
  • **** ************* **** **** **** **** ******** (*******, ********, ***.) where *** ***** ** ******** ** ****. **** *** **** the **** ** ******** (**** ** *****), **** *******.
  • **** ************* **** * *** ********* *** ****, ********** **** the **** ** ******** *** ***** *********** ******** *** ********* job **** *** *** ******** ******* ***** ***** *** ****.

What ** *** ******** **** *** ******* **********?

* ******** ****, ** *******, *** **** **** **** ***** failures *** * ** ******* ******** **** * * **** period ** $*** ($*** **** *******, $*** **** ******** ****).

***** ******* ******* *** *********** ******* ** ***** ************ ***** - ****** ****** **** ** ***********, **'* *** ******** ********. However, ***** ** * **** *** ** *** ****** **** the ******* *** ***** ********* ** **** **** **** ****, rational ***** ****** ***** ******* **********.

**** * ** (**** ************ * **** ******), ***** ***** becomes **** **** *********. **** ** ******* **** ******* ****** provide ***** ** * ******** *******. *** ***** *** ******* only ********* ** **** ***** ****** ********* (*** *** ******* on***** ************* *****-***** *******).

*** ***** ****** ****** *** ******* ***** (*** ** ********* or ****), *** *** ** ** **** ** ********* ******* the *** ** ********** (*** ********* ** ** ****). ** **** ******* **** ** * ******** ******* *** for ***** *********** *** * **** ********* *** ** ********* storage.

*** ********* ******* *** *********** **** ******* ****** ****** (******* they *** ****** **** ********* **** ****** ****** ** ***** chains **** **** **** ***********). ** ***** ***********, ******* ******** to *** ******** ** ********* ****. **** ******* **** *** usually ***** **** ********. ****** ** ** *** ** * very ****** ******** *** **** ***** *****. ** ** ***********, some ***** *** ****** ******** / ***** ******** *** ****** that *** ***** $*,***. *** ******** ** **** ** ********* performance ****** *** *** **** ** ***** ** ******** ******.

**********

******* ********** ******** *** **** **** ** ***** ************, ********* because *** **** ** **** **** **** ***** ******** ******. The ********* ** ** ** ******* ** ****** *** ***** and ******** ** **** ***** ********, *******, *** *** ** redundancy ** ******* ****** ****** ** ****** ** ****** ******* due ** *** **** *******.

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