Controversy, Corsair Responds

Last week SandForce called me to reveal something troubling. While version 3.0.1 of its SF-1200 firmware provided SF-1500 like performance on all drives, the mass production version of the firmware (3.0.5) would cap small file random write performance in line with the SF-1200 spec. This applies to all SF-1200 drives except for OCZ’s Vertex 2.

SandForce’s argument is that only version 3.0.5 is ready for mass production, however Corsair had already begun selling drives with version 3.0.1. Meaning Corsair’s Force series SSDs being sold on the market today perform like OCZ’s Vertex LE and Vertex 2, and not like the Agility 2.

The 3.0.1 firmware apparently had a reliability issue with a power management state, however Corsair believes it has circumvented the problem by disabling the state. This comes at the expense of increased power consumption, but it also means that Corsair has no reason to upgrade to the 3.0.5 firmware on its drives.

Corsair appears committed to keeping 3.0.1 on its drives unless there’s a real benefit to move to 3.0.5. This does pose a problem for OCZ and SandForce’s exclusivity agreement stating that only the Vertex 2 would ship with SF-1500 performance, however that’s an issue for those two to work out.

As always, I’m continuing to test Corsair’s 100GB Force drive to see if there are any issues in real world applications. It’s currently installed in my work notebook (MacBook Pro) which gets used quite a bit. As you well know, if I run into any problems I’ll post about them right away.

The Test

CPU Intel Core i7 965 running at 3.2GHz (Turbo & EIST Disabled)
Motherboard: Intel DX58SO (Intel X58)
Chipset: Intel X58 + Marvell SATA 6Gbps PCIe
Chipset Drivers: Intel 9.1.1.1015 + Intel IMSM 8.9
Memory: Qimonda DDR3-1333 4 x 1GB (7-7-7-20)
Video Card: eVGA GeForce GTX 285
Video Drivers: NVIDIA ForceWare 190.38 64-bit
Desktop Resolution: 1920 x 1200
OS: Windows 7 x64

OCZ's Agility 2 and the SF-1200 Sequential Read/Write Speed
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  • beginner99 - Friday, April 23, 2010 - link

    One thought:

    Wouldn't it be possible just tp use the vertex 2 "special" firmware for tis drive? I mean as far as i understood the controllers are 100% identical it is the firmware that makes the difference. Same should be true for any SF-1200 drive.
    But i'm not gonna try it out myself. ;)
  • Moonstarr - Sunday, May 9, 2010 - link

    Exactly what I was thinking. Take a look at the photos in the gallery and you'll see that the board revisions and controller are identical. Only the branding of the ram looks different.
  • jordanl17 - Saturday, April 24, 2010 - link

    Does anyone use these SSDs in a server? Image a 7 drive raid-5 array ?!?!? it would be great. (I'm talking about for a Terminal Server 2008 64bit. all new hardware)

    I'd like to buy either an HP or IBM blade setup and use 2 of these drives in raid-1 in each blade.

    Does anyone know if this is possible? I know it wouldn't be as reliable as regular hard drive, but I'd keep a few on hand as backup.
  • charlielittle - Saturday, April 24, 2010 - link

    I'm using a 128gb NOVA in a Dell D820 with WinXP. I'd like to keep its great performance up to snuff without doing a full wipe. I was wondering, would it be possible to plug it in as an extra drive on my Win7 desktop and run some utility to force TRIM commands for any/all unused blocks on the drive? Does it have to be the boot drive for TRIM to be enabled by Win7?

    Thanks,
    --C
  • iwodo - Sunday, April 25, 2010 - link

    While Sandforce was slower in Seq Read / Write with Random Data. Would the setting have any different on other non Sandforce SSD.
  • pesos - Sunday, April 25, 2010 - link

    it would be awesome if a SAS 15k drive could be thrown into these SSD benchmarks going forward for those of us interested in doing enterprise comparisons!
  • remmelt - Monday, April 26, 2010 - link

    The SSDnow V+ second generation doesn't perform all that well in the individual tests, but scores remarkably well in the overall performance graphs. Considering price per GB, this might be a great alternative.

    Can anyone explain the difference in the low scores on individual tasks and high scores in the overal benchmarks for this drive?
  • Squuiid - Monday, April 26, 2010 - link

    Anand, excellent review as always, thanks very much.

    Any updates on your Crucial drive? Are you now confident recommending the drive? Has the new one they sent you been reliable and has the performance degradation now been fixed?
    Sorry for the million questions.
  • brain42 - Wednesday, April 28, 2010 - link

    I notice that the latest drives have much higher random write performance than the random read performance, even though the typical scenario has more reads than writes.
    Could this be a symptom that the SSD industry is becoming so focused on random write, that the random read performance is forgotten? When all the reviewers focus solely on the random write performance, you can't really blame the industry for sacrificing performance in other areas.
  • fishak - Wednesday, April 28, 2010 - link

    remmelt, that is my question exactly. Why is the PC Mark score of the Intel G2 controller, so close to Sandforce, while the individual read and write scores of the Intel controller are so far behind?
    Per GB price of Intel is about $3.50, while Sandforce is about 4 bucks.

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