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  1. #1
    Joined
    Mar 2010
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    18

    SSD raid0 configuration slow?

    So I connected my two 60 gb ocz agility ssd's to the two SATA 6Gb/s (shown below) ports and I created a virtual disk with the marvell thing in bios. I have them in a raid0 configuration and I feel like my speeds arent where they should be.

    (red circle is where I have my connected) Is black circle where I should have them?


    And I did a fresh install of windows 7 64-bit and installed drivers suggested



    and these were my speeds which i doubt are still the best I can do.




    Also here goes my system so you know

    kingcoke
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    OCZ User

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    Mobo: GIGABYTE GA-X58A-UD3R
    CPU: Intel Core i7-920
    RAM: 6 GB G.Skill Pi Series DDR3 1600
    Vid: MSI R5770
    PSU: Antec Earthwatts 750W
    SSD: 2 60 GB in Raid0 OCZ Agility
    HDD: 750 GB Samsung Spinpoint
    OS: Windows 7 Ultimate 64-bit

  2. #2
    Joined
    Jan 2005
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    Idaho
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    39
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    6

    Re: SSD raid0 configuration slow?

    I have the same board and 3 vertex 120's and have found the Intel controller is much faster than the Mavell which the 6.0gps ports are. What firmware on the drives? What strip size?

  3. #3
    Joined
    Mar 2010
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    18

    Re: SSD raid0 configuration slow?

    Is the intel controller the ones i circled in the black? The drives are on firmware 1.5 and the strip size was 64. It didnt give me an option of 128 as I wanted to do.

  4. #4
    Joined
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    Hamilton, On, Can
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    Re: SSD raid0 configuration slow?

    yes, the intel controler controls those 6 blue sata connection points... you'll get around 380-400mb/s once you set up the raid on the ICH10R. 64k stripe is fine too.
    Since you're going to be reinstalling windows. Here's the drivers:
    http://downloadcenter.intel.com/deta...&DwnldID=15251
    Last edited by JSLEnterprises; 04-09-2010 at 01:53 AM.
    ..::J.S.L::..


    Email: jsl@jslenterprises.net

  5. #5
    Joined
    Mar 2010
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    18

    Re: SSD raid0 configuration slow?

    Wow thats incredible. Thanks!

  6. #6
    Joined
    Aug 2001
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    664

    Re: SSD raid0 configuration slow?

    So what are your RAIDed SSD speeds like now mate?
    Core i7 3930K | ASUS P9X79 Deluxe | GTX670 | 32GB DDR3 | 500GB SSD | Antec P183 | Windows 8.1 Pro 64bit | 3x 27" 1920x1080 Monitors
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  7. #7
    Joined
    Mar 2010
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    18

    Re: SSD raid0 configuration slow?

    Well they were at my desired speeds



    but now for some reason they have slowed back down tremendously.



    any idea what can be causing this?

  8. #8
    Joined
    Aug 2001
    Posts
    664

    Re: SSD raid0 configuration slow?

    Wow,...

    That was a great improvement there. I don't know what the slowdown could be though. Does the SSD have a lot more files on it? Is it near capacity? Is TRIM functional?
    Core i7 3930K | ASUS P9X79 Deluxe | GTX670 | 32GB DDR3 | 500GB SSD | Antec P183 | Windows 8.1 Pro 64bit | 3x 27" 1920x1080 Monitors
    Core i5 2500k | ASUS P8P67 Pro | 4GB DDR3 | 27 TB Storage | Antec 300 | Server 2012 Essentials | Headless
    Core i7 920 | ASUS P6T Deluxe | MSI GTX260 | 6GB DDR3 | OCZ 120GB Vertex 2 + WD 1TB + 750GB | Antec 300 | Windows 7 64bit | 27" 2560x1440
    Core i7 860 | ASUS P7P55D Pro | eVGA 8800GT | 4GB DDR3 | WD 1TB | Antec 300 | Windows 7 Ultimate 64bit | 40" 1920x1080 HDTV
    Core 2 Q6600 |ASUS P5G41C-M LX | 8800GTS | 8GB DDR3 | WD Black 1TB HDD | Antec 300 | Windows 7 64bit | 27" 2560x1440

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  9. #9
    Joined
    Mar 2010
    Posts
    18

    Re: SSD raid0 configuration slow?

    my drive is about half full now and I haven't messed with anything that had to do with TRIM so i'd think its still functional.

  10. #10
    Joined
    Aug 2001
    Posts
    664

    Re: SSD raid0 configuration slow?

    Quote Originally Posted by kingcoke View Post
    my drive is about half full now and I haven't messed with anything that had to do with TRIM so i'd think its still functional.
    Well TRIM isn't passed through a RAID array yet as I understand it so once you RAIDed your OCZ SSD drives you lost TRIM support. You might be able to do some form of manual TRIM operation though using some utilities.

    http://www.ocztechnologyforum.com/fo...-not-need-this.

    BTW, what Stripe size are you using with your RAID array,....?

    The reason I ask is I have recently RAIDed two Kingston SSDNow SNV425-S2 64GB SSD drives and some of the benchmark numbers are really impressive but others not so much. I was wondering if a smaller Stripe size would help improve the weaker numbers "random reads (512k)".

    Before and after benchmarks:



    Core i7 3930K | ASUS P9X79 Deluxe | GTX670 | 32GB DDR3 | 500GB SSD | Antec P183 | Windows 8.1 Pro 64bit | 3x 27" 1920x1080 Monitors
    Core i5 2500k | ASUS P8P67 Pro | 4GB DDR3 | 27 TB Storage | Antec 300 | Server 2012 Essentials | Headless
    Core i7 920 | ASUS P6T Deluxe | MSI GTX260 | 6GB DDR3 | OCZ 120GB Vertex 2 + WD 1TB + 750GB | Antec 300 | Windows 7 64bit | 27" 2560x1440
    Core i7 860 | ASUS P7P55D Pro | eVGA 8800GT | 4GB DDR3 | WD 1TB | Antec 300 | Windows 7 Ultimate 64bit | 40" 1920x1080 HDTV
    Core 2 Q6600 |ASUS P5G41C-M LX | 8800GTS | 8GB DDR3 | WD Black 1TB HDD | Antec 300 | Windows 7 64bit | 27" 2560x1440

    HP P6150 Windows 7 Ultimate 64bit (Media Center System)
    HP EX490 MSS 16TB
    HP LX195 MSS


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    Hauppauge Colossus
    HDHomeRun 4x
    HDHomeRun Prime
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    PS3
    Wii
    Wii U

  11. #11
    Joined
    Mar 2003
    Location
    Oregon
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    40
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    6,498

    Re: SSD raid0 configuration slow?

    I just got an Intel 160GB G2 SSD, coming from two velociraptors in RAID 0. The G2 is noticeably faster in most operations. So I have to ask the question. Do you guys see any real world performance benefit of having two SSD's in RAID?

    Not trying to start a flame war...its just that the one SSD is so darn fast it is hard to imagine it getting much faster other than in benchmarks. If it really is I'd consider purchasing another.

  12. #12
    Joined
    Aug 2001
    Posts
    664

    Re: SSD raid0 configuration slow?

    I don't "live" for benchmarks. I get no joy from benchmarking my hardware I only enjoy real use.

    I bought the first Kingston SSDNow V series SNV425-S2 64GB drive because it only cost me ~$115. Naturally I wanted an Intel SSD but I didn't want a 40GB and the 80GB seemed a bit more $$$ then I wanted to spend. I was very impressed with the single drive Kingston performance but started to want more space on the OS drive so it was just a logical move to add another identical drive in a RAID 0 array.

    I think I would have been better off with a 128GB Kingston SSDNow V series drive which has 200 / 160 reads / writes and later setup RAID 0 array for a total of 256GB storage. the 128GB drive would have cost me about the same ~$250 I spent on the 2x 64GB drives. If prices drop on these drives I could see buying more and adding them to a larger RAID 0 array but this is due to overall space not performance.

    Do I see a difference in actual use between the single 64GB SSD vs the 2x 64GB SSDs in RAID 0,......no, it was fast before and its fast now.
    Core i7 3930K | ASUS P9X79 Deluxe | GTX670 | 32GB DDR3 | 500GB SSD | Antec P183 | Windows 8.1 Pro 64bit | 3x 27" 1920x1080 Monitors
    Core i5 2500k | ASUS P8P67 Pro | 4GB DDR3 | 27 TB Storage | Antec 300 | Server 2012 Essentials | Headless
    Core i7 920 | ASUS P6T Deluxe | MSI GTX260 | 6GB DDR3 | OCZ 120GB Vertex 2 + WD 1TB + 750GB | Antec 300 | Windows 7 64bit | 27" 2560x1440
    Core i7 860 | ASUS P7P55D Pro | eVGA 8800GT | 4GB DDR3 | WD 1TB | Antec 300 | Windows 7 Ultimate 64bit | 40" 1920x1080 HDTV
    Core 2 Q6600 |ASUS P5G41C-M LX | 8800GTS | 8GB DDR3 | WD Black 1TB HDD | Antec 300 | Windows 7 64bit | 27" 2560x1440

    HP P6150 Windows 7 Ultimate 64bit (Media Center System)
    HP EX490 MSS 16TB
    HP LX195 MSS


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  13. #13
    Joined
    Mar 2010
    Posts
    18

    Re: SSD raid0 configuration slow?



    that confirms my strip size and my ssd alignment. Could it be that on certain parts of my ssd its faster? for example if I have 60 GB free compared to 100 GB would it be possible for the speeds to be faster at the part when I only have 60 GB free? also to answer the question above I doubt the speeds are noticeable but I am not able to speak from experience since my raid array has the speeds of one ssd.

    also should I enable or disable write back cache through intel rapid storage technology.
    Last edited by kingcoke; 04-20-2010 at 05:06 AM.

  14. #14
    Joined
    Aug 2001
    Posts
    664

    Re: SSD raid0 configuration slow?

    I don't know, I'm at a bit of a loss as to what your problem might be (I'm no expert though). You're running the latest Intel Rapid Storage Technology 9.6.0.1014 driver right? open the Intel control panel and go to the "manage" tab. Once there click "Advanced" and enable "Write-Back Cache" (if you have not done so before this).

    That should give you a bit of a performance boost.

    You can also try the "Tony-TRIM" method I linked to earlier as I think it is commonly thought that TRIM is not functional on RAID arrays. So if you're really pounding on those drives they may not be able to recover very well if the Garbage Collection isn't all that resilient.

    I was guessing that it would take about a week or so before I would see performance degradation if my Kingston SSDNow V series drives had poor GC. At which time I figured I'd try some form of manual TRIM (AKA Tony-TRIM).
    Core i7 3930K | ASUS P9X79 Deluxe | GTX670 | 32GB DDR3 | 500GB SSD | Antec P183 | Windows 8.1 Pro 64bit | 3x 27" 1920x1080 Monitors
    Core i5 2500k | ASUS P8P67 Pro | 4GB DDR3 | 27 TB Storage | Antec 300 | Server 2012 Essentials | Headless
    Core i7 920 | ASUS P6T Deluxe | MSI GTX260 | 6GB DDR3 | OCZ 120GB Vertex 2 + WD 1TB + 750GB | Antec 300 | Windows 7 64bit | 27" 2560x1440
    Core i7 860 | ASUS P7P55D Pro | eVGA 8800GT | 4GB DDR3 | WD 1TB | Antec 300 | Windows 7 Ultimate 64bit | 40" 1920x1080 HDTV
    Core 2 Q6600 |ASUS P5G41C-M LX | 8800GTS | 8GB DDR3 | WD Black 1TB HDD | Antec 300 | Windows 7 64bit | 27" 2560x1440

    HP P6150 Windows 7 Ultimate 64bit (Media Center System)
    HP EX490 MSS 16TB
    HP LX195 MSS


    Hauppauge HD PVR 2x
    Hauppauge Colossus
    HDHomeRun 4x
    HDHomeRun Prime
    Xbox 360
    PS3
    Wii
    Wii U

  15. #15
    Joined
    Mar 2010
    Posts
    18

    Re: SSD raid0 configuration slow?

    Yep Intel Rapid Storage Technology is on 9.6.0.1014. I already enabled write back cache and I noticed no performance change. Also the link you linked me to earliar said only to use if your firmware on your ssd is below 1.5 and im on firmware 1.5 for both so I didnt bother.

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