NCQ or NO NCQ

Discussion in 'Mac Pro' started by kittiyut, Jan 22, 2008.

  1. kittiyut macrumors regular

    kittiyut

    Joined:
    Oct 28, 2007
    #1
    It's about Seagate's 1TB Baracuda 7200.11 vs. Baracuda ES.2

    Both are nearly the same (ie rotation speed, cache, size) with the exception of the ES.2 being:

    -Business-critical enterprise drive, designed for 24x7 operation
    -Better at optimizing power consumption
    -Higher MTBF (1.2 million hrs. instead of 750,000)
    -Has Error control/correction
    -A bit pricier (roughly 40 bucks more)
    -BUT NO NCQ ?!?!
    -And a few other minor technical differences

    Question is, I'm getting 4 drives with the RAID card to do RAID 5
    would you go with the ES.2 or the 7200.11? Does NCQ really make
    that much of a difference? :confused:
     
  2. gazfocus macrumors 68000

    gazfocus

    Joined:
    Jan 3, 2008
    Location:
    Liverpool, UK
    #2
    Sorry to sound thick but what's NCQ? Thanks
     
  3. OhFrenchman macrumors newbie

    Joined:
    Nov 21, 2007
    #3
    A technology introduced by SATA that allows for faster hard drive speeds and slightly less wear on the drive by optimizing the order in which read and write orders are processed. For more information consult the Wikipedia (http://en.wikipedia.org/wiki/NCQ)

    I can't tell you whether it makes much of a difference, but if it is a new SATA drive I wonder why it doesn't support NCQ. The first question to ask is, of course: Does your RAID Adapter even have NCQ-support? Both (hard drive and controller) need it.
     
  4. kittiyut thread starter macrumors regular

    kittiyut

    Joined:
    Oct 28, 2007
    #4
    It is the Apple RAID controller, not a 3rd party so I would assume that it
    does support it!
     

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