Need help choosing a hardware raid card

I would like to set up a raid 5 on my system for a little bit of redundancy and a speed increase. I was thinking of setting 4 drives into a raid 5, but I hear that it is a good idea to use a raid controller card to do this (as calculating parity can flood the bus, and not give you the performance you would like)
I see there are many options available through sites like newegg, but the price points range widely from 50 dollars to 2000 dollars.

Can someone help me find a suitable card for 4, (or if not much more expensive) 8 sata 3.0Gbit or 6.0Gbit interface drives? Thanks much!
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More about need choosing hardware raid card
  1. Someone posted a real beauty here recently. It was Firewire2 in this thread: http://www.tomshardware.com/forum/forum2.php?config=tomshardwareus.inc&cat=32&post=266995&page=1&p=1&sondage=0&owntopic=1&trash=0&trash_post=0&print=0&numreponse=0&quote_only=0&new=0&nojs=0

    The device is: http://www.datoptic.com/esata-hardware-raid-controller.html

    See if this looks good to you. It seems to be limited to the throughput of one SATA II channel. FireWire2, is something similar in SATA III out yet?
  2. Looks like it would be working off of a single bus, so the reads/writes would be maxed at 3.0gbit (300MBS useable, I think)
  3. miketsmith said:
    Can someone help me find a suitable card for 4, (or if not much more expensive) 8 sata 3.0Gbit or 6.0Gbit interface drives? Thanks much!


    If you are looking for a controller supporting up to 8 SATA 6Gb/s drives and willing to spend about $600, I would recommend Areca ARC-1880i. This card has two SAS connectors, comes with two SFF-8087 cables for connecting up to 8 SATA hard drives and has very good performance.
  4. miketsmith said:
    Looks like it would be working off of a single bus, so the reads/writes would be maxed at 3.0gbit (300MBS useable, I think)



    The beauty of this hardware raid controller is driver-less, as far as system concern it sees the raid as a SINGLE hdd
    with transfer rate of 230~250MB/s

    So if you need more speed just add another one and create a raid0

    With 2x SPM393 cost at $240.00, you can create a RAID50 (10x HDD) and it can transfer about 450~495MB/sec with email notification

    Of course if you want faster than add another controller...

    Quote:
    miketsmith wrote :

    Can someone help me find a suitable card for 4, (or if not much more expensive) 8 sata 3.0Gbit or 6.0Gbit interface drives? Thanks much!


    There is NO hardware controller 8ports PCIe that costs below $400.00
  5. What kind of a write/read speed can you get out of a single drive these days?
    What about four port cards under 400?

    And how does this look? http://www.newegg.com/Product/Product.aspx?Item=N82E16816131003
  6. miketsmith said:
    What kind of a write/read speed can you get out of a single drive these days?
    What about four port cards under 400?

    And how does this look? http://www.newegg.com/Product/Product.aspx?Item=N82E16816131003


    This is very good raid card, you may able to get about 300MB/sec on raid5 with 4 drives (7200rpm)
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