SSD for heavy duty use (scratch disk)

Discussion in 'Buying Tips and Advice' started by macstatic, Jan 17, 2013.

  1. macrumors 6502a

    Joined:
    Oct 21, 2005
    #1
    Having installed a Samsung 830 128GB SSD as my boot/app drive I've become so thrilled about the idea that I'm considering getting another, separate SSD to use as a scratch/cache disk for Photoshop and other apps. As I understand SSDs have limited read/write cycles I'm worried that a "regular" SSD will "die" quickly with such heavy use.

    Which SSD do you recommend for that particular use and would 64GB be considered enough? It should be reliable and of good quality (which is why I opted for the Samsung 830 because of its proven track record).
     
  2. simsaladimbamba

    Joined:
    Nov 28, 2010
    Location:
    located
    #2
    Depending how you connect the scratch disk (USB 2.0 would be not ideal, USB 3.0 or Firewire 800 or Thunderbolt or internally would be better) to your Mac, any SSD will do fine and 64 GB should also be enough.

    Normally modern SSDs have a theoretical write/read limit of 10,000 to 100,000 cycles (P/E cycles), meaning if you had a 64 GB SSD and its cycle limit would be 10,000, you would have to write 625 TB to it, which would be 351 GB per day everyday for the next five years. Assuming those numbers vary and it would only be a tenth of that, it would still mean 35 GB per day, which under normal usage no average computer consumer does, not even with temporary files.
     
  3. thread starter macrumors 6502a

    Joined:
    Oct 21, 2005
    #3
    It'll be connected directly to a SATA port inside my Mac Pro (either one of the internal ports or through a PCIe SATA card).
    So another Samsung 830 would suffice then?

    I suppose a 64GB SSD along with say 32GB RAM would be enough for general use (Photoshop, Lightroom, Final Cut Pro etc.), right?
     
  4. macrumors 65816

    designs216

    Joined:
    Oct 26, 2009
    Location:
    Down the rabbit hole
    #4
    Sounds like you'll have a fairly formidable machine. If you have not acquired the PCI card, consider getting one that's SATAIII to get the most out of the 830.
     
  5. macrumors 601

    Mr. Retrofire

    Joined:
    Mar 2, 2010
    Location:
    www.emiliana.cl
    #5
    Samsung 830 or Samsung 840 Pro. The 830 survived over 6 PB (6000 Terabyte) of test data.

    See also:
    http://www.xtremesystems.org/forums...25nm-Vs-34nm&p=5157050&viewfull=1#post5157050
     
  6. macstatic, Jan 19, 2013
    Last edited: Jan 28, 2013

    thread starter macrumors 6502a

    Joined:
    Oct 21, 2005
    #6
    I didn't understand much of what was on that xtremesystems.org page other than the Samsung 830 being a very reliable and overall excellent SSD :)
    The 128GB 830 seems to be sold out everywhere (all they have left are 64GB which might or might not be big enough for a cache/scratch drive).

    What other brands/models would you suggest I look into (the 840 Pro costs a fair bit more money here than what I paid for my 830, and it doesn't have a proven track record yet of course).
     

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