sonnet tempo ssd pro plus with 3,1 mac pro

Discussion in 'Mac Pro' started by aramism, Jan 19, 2015.

  1. aramism macrumors newbie

    Jan 19, 2015
    There is either lack of information out there or just confusing. I have a mac pro 3,1 that I'm looking to do a major upgrade on. Due to the 3g limitations of the sata bus I want to run my whole system and necessary work drives off 6g ssd drives and I had the understanding that tempo ssd pro plus pcie card with 2 drive slots would address my needs. I need 3 drives. 1 boot, 1 scratch, 1 sample libraries. I am a music producer, so speed is essential and the scratch (audio files) and sample libraries must be separated.

    The issue here is that the 6g bandwidth promised by sonnet applies to either one card (on the tempo ssd card which only has one card slot) or when the two cards on the pro plus card are set up in raid 0. Since I only have 2 pcie slots left (two other are being used by audio interface and video card) I can only have 2 hard drives it seems that will get full 6g bandwidth. My initial goal was to have one tempo ssd card with the boot drive on it, and the other card would be a pro plus with two drives, functioning as two drives, not set up in raid 0.

    Any input into this?

    I called sonnet, they basically told me all their testing for two drives on one card is done with raid 0 and short of telling me I will experience speed loss because two cards will be filling up the pcie bus bandwidth, they could not tell me exactly how much and told me to test it myself. so they were not much help.

    i'm hoping someone experiences could chime in here or help me out. The guy at sonnet honestly didn't seem to know what he was talking about, and I can't find any info online either after searching for a while. All users use the pro plus card in raid 0.

    ps - please don't tell me to upgrade to a newer mac pro model, that is not an option. I have to stick with that I have now and make it work and optimize it as much as I could. If the tempo ssd pro plus card with 2 separate drives will essentially be splitting 6g bandwidth, I will get 2 3g drives, I am better off just sticking 2 3g drives in the internal sata bay anyway. I can then just use the system boot drive on the pcie to get real fast system performance, but the sample library and audio scratch drive would benefit from having 6g speed as well.
  2. OS6-OSX macrumors 6502a


    Jun 13, 2004
    Software Raid 0 4 internal HD's. Check online to see what drives give you what speeds. I think some Seagates will do 152 each. You can go as small as 500 GB and have 2TB for the library.
  3. aramism thread starter macrumors newbie

    Jan 19, 2015
    thanks for the suggestion but it doesn't really answer my question...

    plus, I did still plan on using the internal bays for HDD for backups and some additional samples and libraries that I don't access as often or are not as RW intensive.

    So your idea isn't applicable for my situation. I can dilute my question down to the easiest manner which I didn't really think of (hence the long post) yesterday:

    On a sonnet tempo ssd pro plus card, when there are 2 6g ssd drives, functioning as separate drives, not in raid mode, what are the speeds?
  4. matthewtoney macrumors regular


    Aug 17, 2009
    Charlotte, NC
    I have a Sonnet Tempo Pro Plus in my system with a number of SSDs on it so *maybe* I can help. My understanding is that you'll get full SATA3 speeds on each port on the card (and yes, only speeds higher than that by using more than one in RAID)

    For me, I have 2 Samsung EVO 840's on the card itself and in RAID0 getting read/write speeds right around what is promised on the Sonnet site, but I also have a Sandisk 256GB SATA3 SSD on one of the external ports of the card. I just ran the Blackmagic test on it and got 484MB/s read and 453MB/s writes, but that's just about exactly what the specs are on this SSD. I expect if I had another Samsung 840/850 SSD (or other faster SSD) on one of those external ports I would see speeds in the 500's for read/write, but that's as much as you're gonna see for a single drive. There should be no speed differences between any of the four ports on the card - the internal ports with single SSD drives on them (and no RAID) should benchmark much the same.

    That help?

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