5th Drive SSD?

Discussion in 'Mac Pro' started by sammyman, Nov 3, 2010.

  1. sammyman macrumors 6502a

    Joined:
    Mar 21, 2005
    #1
    Can you still install a 5th drive in the optical slot for a mac pro (2010)? I am thinking of installing a 5th drive SSD boot up disk, and then have 4 drives in a RAID array....
     
  2. DoFoT9 macrumors P6

    DoFoT9

    Joined:
    Jun 11, 2007
    Location:
    Singapore
    #2
    sure can! if you have the power cable and the SATA cable spare then it will be fine.
     
  3. Goldfinger macrumors 6502

    Joined:
    Jan 7, 2006
    Location:
    Belgium
    #3
    Yep, there's an unused SATA cable in the lower optical bay. Just plug your SSD in there and you're good to go. I use this config myself. 120GB SSD in the lower optical bay as a boot drive. A 2 disk RAID, a Time Machine disk and a smaller disk for misc stuff and my iTunes library.
     
  4. nanofrog macrumors G4

    Joined:
    May 6, 2008
    #4
    Yes you can.

    But I've a question; are the disks in the HDD bays mechanical or SSD's?

    I ask, as the ICH (chip that actually contains the SATA ports) has a throughput limit of ~660MB/s, which can be exceeded exceptionally fast when using SSD's simultaneously, such as in a stripe set (you'd end up throttling if this happens = won't get the performance you may be expecting).

    The ICH is much harder to throttle using mechanical disks (i.e. ~110MB/s per port <~660MB/s divided by 6x ports>, which is all the fastest 7200rpm SATA mechanical can do right now).
     

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