Mac Pro 4.1 esata card

Discussion in 'Mac Pro' started by Tazdaman, Mar 6, 2012.

  1. Tazdaman macrumors newbie

    Joined:
    Jun 17, 2007
    #1
    Hi, I am removing my 640Gb starup drive and 2x500gb (which have been stripped raid 0) and replacing them with 1 SSD via spare Sata and 4 x 2TB western digital drives. I still have important data on the 3 drives that I am going to remove. I need to get an external enclose and thought the fastest way would be via esata. That means I need a PCI esata card. Can anybody recommend one that is garunteed to work on the Mac Pro 4.1? The reason I want to go esata is because eventually I wil be clearing those drives and using the enclosure as a backup.
     
  2. wonderspark macrumors 68030

    wonderspark

    Joined:
    Feb 4, 2010
    Location:
    Oregon
    #2
    I have this card in my 2009, and it works perfectly as advertised.
    [​IMG]

    You get two eSATA 6G ports and two USB 3.0 ports, all hot plug and bootable.
     
  3. Tazdaman thread starter macrumors newbie

    Joined:
    Jun 17, 2007
    #3
  4. wonderspark macrumors 68030

    wonderspark

    Joined:
    Feb 4, 2010
    Location:
    Oregon
    #4
    Well, it depends on the drives. My SSD is internal, but I could probably pull it out and test it via my Voyager Q dock. It reads/writes to my external LaCie disks at 115MB/second, if that helps. If you had an SSD, I believe it will read/write as fast as the drive itself is capable, but less than the theoretical limit of 600MB/second.

    I had a Newer Tech 2-port eSATA only card in there before, but it didn't support bootable disks, nor hot plugging. I had to reboot to see drives hooked via eSATA, and that was annoying. Plus this has two USB 3.0 ports.
     
  5. Tazdaman thread starter macrumors newbie

    Joined:
    Jun 17, 2007
    #5
    If I buy an external sata enclosure and install 3 7200rpm drives what is the maximum speed I could read write at?

    Basically my thinking is there is no point purchasing a card which allows up to 6gps as the Mac 4.1 bus may not even allow as the max bus speed is 3gps.

    The Sonnet Tempo SATA E2P 2 Port ESATA PCI Express Host Adapter Card allows Up to 125MB/sec is that the maximum I can get from my Mac Pro using an external enclosure or can I get faster speeds with a better card?
     
  6. wonderspark macrumors 68030

    wonderspark

    Joined:
    Feb 4, 2010
    Location:
    Oregon
    #6
    I'll have to swap my SSD with the HDD backup to see what happens. The SSD in the internal SATA 2.0 (3Gb) runs at 230MB/sec write, 266MB/sec read. If it goes faster than that via the eSATA card, that will be interesting.

    I can't test my RAID tower through the card, since it runs via mini-SAS connectors. I know it runs up to 1101MB/second via the Areca card in the PCI slot in my Mac Pro, so I'd be willing to bet this 6Gb card will run close to the max of 600MB/second... maybe 525MB/second or something? Faster than 125MB/second for sure.
     
  7. wonderspark macrumors 68030

    wonderspark

    Joined:
    Feb 4, 2010
    Location:
    Oregon
    #7
    I keep reading two different numbers and forget that SATA 3.0 (6Gb) is actually 750MB/sec theoretical, and the 600MB/sec is probably closer to real world speed. So I'd expect about that from this card.
     
  8. firedownunder, Mar 7, 2012
    Last edited: Dec 12, 2012
  9. flatfoot macrumors 65816

    Joined:
    Aug 11, 2009
    #9
    Any PCIe card sporting the ASMedia ASM1061 chipset will work without additional driver installation in 10.6.8 and 10.7. (http://tonymacx86.blogspot.com/2011/08/increasing-disk-performance-sata-6gbs.html)

    There's no need to pay a ridiculously high premium for "official" Mac compatibility.

    Just search eBay or google for "ASM 1061". There are cards with 2 external or 2 internal ports or 1 of each kind of ports.

    Not sure about bootability; will have to look into that.

    EDIT: Those cards are bootable.
     

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