OCZ's Vertex 2 Pro Preview: The Fastest MLC SSD We've Ever Tested
by Anand Lal Shimpi on December 31, 2009 12:00 AM EST- Posted in
- Storage
Final Words
SandForce started work on its controllers back in 2007. The late start meant a late arrival to the party. Even today we’re looking at another 1 - 3 months before we see widespread availability of SSDs based on the SF-1200 or SF-1500. I guess it’s more fashionably late than anything else, because this thing is good.
The OCZ Vertex 2 Pro is the fastest single-controller MLC SSD I’ve ever tested, and it’s not even running final firmware. It’s quite telling that SandForce decided to make its first public showing with OCZ. Perhaps all of the initial hard work with Indilinx in the Vertex days paid off.
The controller and product both look very good. The only concern for the majority of users seems to be price. For the enterprise market I doubt it’ll be much of an issue. The Vertex 2 Pro should come in cheaper than Intel’s X25-E in a cost per GB sense, but for high end desktop and notebook users it may be a tough pill to swallow. Especially for a controller whose reliability will only be proven over time. I’m curious to see what the cheaper SF-1200 based SSDs will perform like. I’m hearing that they offer the same sequential read/write speed, but have lower random write performance.
OCZ says they will continue to work with Indilinx to bring out new products based on its controllers. SandForce simply adds to the stack.
Then there's Intel. Current roadmaps put the next generation of Intel SSDs out in Q4 2010, although Intel tells me it will be a "mid-year" refresh. For the mainstream market the capacities are 160GB, 300GB and 600GB. I'm guessing we'll see 160GB down at $225, 600GB at $500+ and the 300GB drive somewhere in between. The X25-E also gets a much needed upgrade with 100GB, 200GB and 400GB capacities.
Competition is a good thing. We need companies to not only keep Intel aggressive on price, but competitive on features as well. Indilinx did the former and it looks like SandForce is going to do the latter.
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Holly - Friday, January 1, 2010 - link
Well, you can patent implementation and technology, but not the idea itself. (At least that's what my boss was trying to explain me). So, in case this idea seems worthy enough other manufacturers will come with their own MySuperStoringTechnology (c).Personaly I think any improvement (even if it comes out to be dead end) is worth it in global scale and this tech seems very interesting to me.
I only have some worries about using cheaper NAND chips... Taking cheap USB flash they tend to go nuts in about 6-12 months of usage (well, I am stressing them quite a bit...) Putting them together with the best controller seems to me a bit like disbalancing things. Definitely not for servers/enthusiasts (who want the best quality for good reasons) and still too expensive for pple earning their paychecks
Holly - Friday, January 1, 2010 - link
P.S. Happy New Yearyacoub - Thursday, December 31, 2009 - link
I don't know that I want lower-quality Flash memory in my SSDs. I think I'd rather have both a better chip and high quality memory. But you know corners will be cut somewhere to keep the prices affordable.frontliner - Thursday, December 31, 2009 - link
Page 10 talks about Random Write in MB/s and you're talking IOPS:At 11K IOPS in my desktop 4KB random write test, the Vertex 2 Pro is 20% faster than Intel’s X25-M G2. Looking at it another way, the Vertex 2 Pro has 2.3x the 4KB random write performance of today’s OCZ Vertex Turbo.
&
Random read performance is quite good at 13K IOPS, but a little lower than Intel’s X25-M G2.
Anand Lal Shimpi - Thursday, December 31, 2009 - link
woops! you're right, I decided to go with the MB/s graphs at the last minute but wrote the text based on the IOPS results. Fixed! :)Take care,
Anand
Makaveli - Thursday, December 31, 2009 - link
My guess is intel will release another firmware to increase the write speed on the G2 drives. As Q4 2010 is quite a long wait for a refresh. So new firmware with increase write speed and a price drop should still keep them in the driving seat.Kudos to OCZ for the constant shove in the back to intel tho.
mikesown - Thursday, December 31, 2009 - link
Hi Anand,Great article! Along the subject of Intel's monopoly bullying, I was curious if you had any information about Micron manufacturing their own C300 SSDs with (very nice, it seems) Marvell controllers(see http://www.micronblogs.com/category/ssd-concepts/)">http://www.micronblogs.com/category/ssd-concepts/). I know Micron and Intel manufactured NAND jointly through their IM Flash Technologies venture, so it seems a little bit strange that Micron would manufacture competing SSDs while in a partnership with Intel. Did Intel and Micron part ways for good?
Thanks,
Mike
efficientD - Thursday, December 31, 2009 - link
As an employee of Micron, I can say that Intel and Micron have not parted ways, but rather only had the agreement for the actual flash memory and not all of the other parts of an SSD (controller, dtc.) We are still very much in cooperation on what was agreed upon in the first place. You will notice that the OCZ in this article is Micron, and not from IM flash (the Intel/Micron joint venture). If you crack open an Intel drive, however, you will nearly exclusively find IM Flash chips along with Micron DRAM, the first gen didn't even have Micron DRAM. Hope this clarifies some things.Doormat - Thursday, December 31, 2009 - link
I'm disappointed in the lack of SATA 6Gb/s support, but a lot of that is product timing (its only now showing up in add-on chips, and controllers in late 2010/early 2011). You really wonder what the speeds are on an unbridled SF-based drive.Jenoin - Thursday, December 31, 2009 - link
"SandForce states that a full install of Windows 7 + Office 2007 results in 25GB of writes to the host, yet only 11GB of writes are passed on to the drive. In other words, 25GBs of files are written and available on the SSD, but only 11GB of flash is actually occupied. Clearly it’s not bit-for-bit data storage.""What SF appears to be doing is some form of real-time compression on data sent to the drive."
Based on what they said (and what they didn't say) I have to disagree. It appears to me that they are comparing the write that is requested with the data already on the SSD and only writing to the bits that need changed thereby write amplification ~0.5. This would explain the high number of IOPS during your compressed file write test perhaps. That test would then be a mixed test of sequential and random writes giving you performance numbers in between the two other tests. Could you verify the actual disk usage with windows 7 and Office installed? If it indicates 11gb used then it is using some kind of compression but if it indicates the full size on the disk then it is using something similar to what I detailed. I just thought it interesting that Sandforce never said things would take up less space, (which would be a large selling point) they only said it would have to write about half as much supporting my theory.