LSI Mega Raid performance problems

Discussion in 'Computer Hardware, Devices and Accessories' started by CosmoCortney, Jan 11, 2014.

  1. CosmoCortney

    CosmoCortney Chemtrail Pilot

    Apr 18, 2013
    on the cool side of the pillow
    I have 2 WD 4TB HDDs configured as a LSI Mega Raid RAID-0.
    But all programs have low performance when reading/writing from/to the raid. DXTory 12MB/s, Blackmagic Design Disk Speed test shows 110MB/s write speed, 240MB/s read speed (the read speed seems to be kinda normal).
    the only program having no performance issue is the windows explorer. I moved a 3,4GB large video file from the C:\ ssd to the raid and it was transferred I less than 15 or 14 seconds.

    I installed the latest drivers for my board and LSI drivers. No changes.
    The stripe size has 64kByte.
    All HDDs are plugged in in SATA-III plugs

    I am using an ASUS z9pe-d8 ws mother board. here's the datasheet as a .pdf if you would like to have more information:

    And I'm using 2 these HDDs (4tb):

    (I know it'll be better to use the black edition instead. but I didn't want to pay almost 230€ for a hdd. I'd be fine with a 8tb raid-0 that reaches a write speed of 200MB/s minimum)
  2. trumpet-205

    trumpet-205 Embrace the darkness within

    Jan 14, 2009
    United States
    Have you tried writing multiple large files at once? Single large file doesn't tell much, since writing is cached beforehand.