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2 x HDD and 1 x SSD RAID0 Help

I just built my pc.

I have an ASRock Z77 Extreme 4 motherboard
I am using 2 x 1TB HDD and 1 x 120GB SSD and want to RAID0

I have not installed windows yet, and have not installed the HDD or SSD yet.

What do I do next?, when installing windows do I unplug the HDD? Set up RAID before or after windows?...
9 answers Last reply Best Answer
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  1. You never want to mix HDDs and SSDs in a RAID array. The RAID array should be all HDDs or all SSDs.

    A RAID array's Read/Write performance is based upon the drive in the array with the slowest Read/Write speeds.
    So you would be wasting your SSD's performance if you put it in a RAID with a HDD.

    A RAID-0 array's total capacity is based upon the drive in the array with the smallest capacity.
    So if you have a RAID-0 array with 2 1TB drives and 1 120GB drive your array's total capacity (before formatting) would be 360GB (120GB x 3).

    If you're determined to create a RAID-0 array then create one with just your 2 1TB drives.

    Install your O/S on your SSD.
  2. Dereck47 said:
    You never want to mix HDDs and SSDs in a RAID array. The RAID array should be all HDDs or all SSDs.

    A RAID array's Read/Write performance is based upon the drive in the array with the slowest Read/Write speeds.
    So you would be wasting your SSD's performance if you put it in a RAID with a HDD.

    A RAID-0 array's total capacity is based upon the drive in the array with the smallest capacity.
    So if you have a RAID-0 array with 2 1TB drives and 1 120GB drive your array's total capacity (before formatting) would be 360GB (120GB x 3).

    If you're determined to create a RAID-0 array then create one with just your 2 1TB drives.

    Install your O/S on your SSD.


    Maybe you mis-understood. 2 1tb HD are RAID 0
    the 120SSD is for OS and other things that needs quick booting
  3. Best answer
    Should be no problem.
    first. Connect the two HDDs and create the array. exit the raid setup and powerdown and disconnect the HDDs, Connect the SSD leaing the Bios set to Raid and install OS on the SSD. You will want to use the LATEST intel RST drivers so that trim will still be passed o the SSD.
    .. After satisfied with SSD OS install (OS + Privers + Programs. Power down reconnect HDDs.
    .. Set Boot priority to SSD in bios ad boot to OS
    .. Go to windows disk manager and initialize, partition, and format the HDDs (should be drive 1 as SSD should be drive 0).
  4. I have my two HD plugged into 3_0 and 3_1 but I am not prompted to do the RAID guide. I have set SATA mode to RAID too... ?
  5. Some motherboards you have to press Cntr I at post to enter the Raid0 setup, it will not auto prompt just because you have selected raid - Check manual for keys to enter raid setup.
  6. What about the fact the computer is having issues restarting?
    2/3 times it works the other .. It doesn't do anything
  7. The Best, and Easiest way to do is:

    Set SATA in BIOS as AHCI
    Install windows in SSD
    Turn 2x 1TB to Dynamic drives and Create a Stripe Volume under Disk Manager

    Some MB's RAID does not take full advantage of AHCI features and/or SSD
  8. if you are having issues booting up already I suggest you resolve them before you setup the raid or start installing programs and games.
    Setting up a raid or installing more programs is only going to compund the issue.
    First I would check for SSD and motherbd firmware updates and install those and retest.
    Next look for all driver updates but be sure to install the chipset/motherbd drivers first, graphics I do next, followed by accessories (like sound, usb3, tuners...)
    If you still have issues then you probably should start a new thread in the appropriate section of the forum.
  9. Issue solved.

    Driver updates, a rewire needed, RAID done

    Thanks for your input.
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