ssd raid

Discussion in 'Hardware' started by theefool, Apr 14, 2011.

  1. theefool

    theefool Geekified

    I have not bought any, but, I'm thinking about getting (eventually) two OCZ vertex 3 240GB SSD drives and setup a raid 0 on them.

    http://www.newegg.com/Product/Product.aspx?Item=N82E16820227707

    I'm not doing this anytime soon, mostly waiting on the x79 chipset during the 4th quarter of this year. This will probably be a $2400 upgrade on my computer, for the board, cpu, and two ssd's.

    I was just wondering if anyone else has setup a raid 0 on two ssd's for their primary drive.

    Pros/cons and I know cons about raid 0, I'm using two 10k drives in raid 0 now.
     
  2. abekl

    abekl First Sergeant

    I considered doing what your doing, but just couldn't justify the cost for the marginal improvement in performance (I'm also running 10k rpm drives).
     
  3. theefool

    theefool Geekified

    From different sites, the ssd drives are quite a bit faster. In some cases, that is. I'll make a new post when that day comes.
     
  4. collinsl

    collinsl MajorGeek

    The question here I guess is: will you notice a speed difference between 1 SSD and 2 in RAID0?

    Having no experience other than reading about SSDs online the only answer I can offer is a guess at best. My guess is that in the real world you are unlikely to notice the difference.
     
  5. DavidGP

    DavidGP MajorGeeks Forum Administrator - Grand Pooh-Bah Staff Member

    Hi

    Yeah I have two OCZ Vertex 2 SSDs in Raid0 and benchmark is HERE and I didn have 2 10k Raptors in Raid0 and the SSDs of same size beat the data I/O hands down. *that thread in benchmarks was a benchmark only and not a definitive post for TRIM not working in Raid Arrays as yet I did blog about that difference IIRC*

    Pro - damn quick! apps open seriously quickly and especially on Win7 x64 and if the app is native x64 (Office 2010 x64 for one), boot nad shutdown also, so PC is generally snappy.

    Con - unless the TRIM function is added to the Sandforce 2400 controller (I think the SF controllers personally are the ones to go for over Intels) for RAID compatabilty then you dont get this luxury, however IIRC the Garbage Collection of the Sandforce controller works in a similar way but you need to leave the PC idle for a while.

    I've not noticed usabe space disapear for the speed deteriorate yet, but you do need to clean install and read up on OCZs website on the tweaks for SSDs as you dont need Defrag, Indexing, System Restore (although on SR I would be inclinded to use a Imaging app like Acronis to image your SSDs to a spare HDD) etc and these should be disabled by Windows 7 after a few driver installed and a reboot, but its worth checking they are disabled.

    Do not run too many benchmarks on the drives, as some fill up the blocks too quickly and in the end you may have the zero fill the drives to get them back to peek.

    I also read into its best to have a % of unformatted space on the SSDs for overheads and dead blocks etc, I allocated 10GB to RAW.



    TBH 1 SSD in non Raid is quick enough and worth thinking about not Raiding them, but your likely like me and will give things a go ;)
     
    Last edited: Apr 18, 2011
  6. theefool

    theefool Geekified

    Thanks for the info! I know there are diminishing returns on the number of drives that are in raid 0. I believe it is over 4 and no real value.
     
  7. DavidGP

    DavidGP MajorGeeks Forum Administrator - Grand Pooh-Bah Staff Member

    Think as you mentioned using two SSDs then you're fine, just have good read of this HERE, I read this few times.
     

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