SandForce was first to announce and preview its 2011 SSD controller technology. We first talked about the controller late last year, got a sneak peak at its performance this year at CES and then just a couple of months ago brought you a performance preview based on pre-production hardware and firmware from OCZ. Although the Vertex 3 shipment target was originally scheduled for March, thanks to a lot of testing and four new firmware revisions since I previewed the drive, the officially release got pushed back to April.

What I have in my hands is retail 120GB Vertex 3 with what OCZ is calling its final, production worthy client firmware. The Vertex 3 Pro has been pushed back a bit as the controller/firmware still have to make it through more testing and validation.

I'll get to the 120GB Vertex 3 and how its performance differs from the 240GB drive we previewed not too long ago, but first there are a few somewhat-related issues I have to get off my chest.

The Spectek Issue

Last month I wrote that OCZ had grown up after announcing the acquisition of Indilinx, a SSD controller manufacturer that was quite popular in 2009. The Indilinx deal has now officially closed and OCZ is the proud owner of the controller company for a relatively paltry $32M in OCZ stock.

The Indilinx acquisition doesn't mean much for OCZ today, however in the long run it should give OCZ at least a fighting chance at being a player in the SSD space. Keep in mind that OCZ is now fighting a battle on two fronts. Above OCZ in the chain are companies like Intel, Micron and Samsung. These are all companies with their own foundries and either produce the NAND that goes into their SSDs or the controllers as well. Below OCZ are companies like Corsair, G.Skill, Patriot and OWC. These are more of OCZ's traditional competitors, mostly acting as assembly houses or just rebadging OEM drives (Corsair is a recent exception as it has its own firmware/controller combination with the P3 series).

By acquiring Indilinx OCZ takes one more step up the ladder towards the Intel/Micron/Samsung group. Unfortunately at that level, there's a new problem: NAND supply.

NAND Flash is not unlike any other commodity. Its price is subject to variation based on a myriad of factors. If you control the fabs, then you generally have a good idea of what's coming. There's still a great deal of volatility even for a fab owner, process technologies are very difficult to roll out and there is always the risk of issues in manufacturing, but generally speaking you've got a better chance of supply and controlled costs if you're making the NAND. If you don't control the fabs, you're at their mercy. While buying Indilinx gave OCZ the ability to be independent of any controller maker if it wanted to, OCZ is still at the mercy of the NAND manufacturers.


Intel NAND

Currently OCZ ships drives with NAND from four different companies: Intel, Micron, Spectek and Hynix. The Intel and Micron stuff is available in both 34nm and 25nm flavors, Spectek is strictly 34nm and Hynix is 32nm.

Each NAND supplier has its own list of parts with their own list of specifications. While they're generally comparable in terms of reliability and performance, there is some variance not just on the NAND side but how controllers interact with the aforementioned NAND.

Approximately 90% of what OCZ ships in the Vertex 2 and 3 is using Intel or Micron NAND. Those two tend to be the most interchangeable as they physically come from the same plant. Intel/Micron have also been on the forefront of driving new process technologies so it makes sense to ship as much of that stuff as you can given the promise of lower costs.

Last month OWC published a blog accusing OCZ of shipping inferior NAND on the Vertex 2. OWC requested a drive from OCZ and it was built using 34nm Spectek NAND. Spectek, for those of you who aren't familiar, is a subsidiary of Micron (much like Crucial is a subsidiary of Micron). IMFT manufactures the NAND, the Micron side of it takes and packages it - some of it is used or sold by Micron, some of it is "sold" to Crucial and some of it is "sold" to Spectek. Only Spectek adds its own branding to the NAND.

OWC published this photo of the NAND used in their Vertex 2 sample:

I don't know the cause of the bad blood between OWC and OCZ nor do I believe it's relevant. What I do know is the following:

The 34nm Spectek parts pictured above are rated at 3000 program/erase cycles. I've already established that 3000 cycles is more than enough for a desktop workload with a reasonably smart controller. Given the extremely low write amplification I've measured on SandForce drives, I don't believe 3000 cycles is an issue. It's also worth noting that 3000 cycles is at the lower end for what's industry standard for 25nm/34nm NAND. Micron branded parts are also rated at 3000 cycles, however I've heard that's a conservative rating.

If you order NAND from Spectek you'll know that the -AL on the part number is the highest grade that Spectek sells; it stands for "Full spec w/ tighter requirements". I don't know what Spectek's testing or validation methodology are but the NAND pictured above is the highest grade Spectek sells and it's rated at 3000 p/e cycles. This is the same quantity of information I know about Intel NAND and Micron NAND. It's quite possible that the Spectek branded stuff is somehow worse, I just don't have any information that shows me it is.

OCZ insists that there's no difference between the Spectek stuff and standard Micron 34nm NAND. Given that the NAND comes out of the same fab and carries the same p/e rating, the story is plausible. Unless OWC has done some specific testing on this NAND to show that it's unfit for use in an SSD, I'm going to call this myth busted.

The Real Issue
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  • Kepe - Wednesday, April 06, 2011 - link

    I'd say the reason is usually that when a company has sold you its product, they suddenly lose all interest in you until they come up with a new product to sell. Apple used to be a very good example with its battery policy. "So, your battery died? We don't sell new or replace dead batteries, but you can always buy the new, better iPod."
    It's this kind of ignorance towards the consumers that is absolutely appalling, and Anand is doing a great job at fighting for the consumer's rights. He should get some sort of an award for all he has done.
    Reply
  • Super - Friday, April 08, 2011 - link

    ...perhaps the Nobel Peace Prize. ?? i've seen someone win it for a whole lot less *cough Obama Reply
  • A5 - Wednesday, April 06, 2011 - link

    Agreed - glad they listen to Anand.

    The real question is why they didn't do anything until Anand bitched to the CEO directly. It's not like they weren't aware of the issue - the Storage Review article came out several months ago...
    Reply
  • darckhart - Wednesday, April 06, 2011 - link

    It just goes to show that companies are not customer focused. Unless they get shoved hard enough, or see that the bottom line will be affected greatly, they just hope you'll give up after being mired in the revolving email chain or sent through 5 level deep phone support.

    Thanks Anand for reminding companies that some of us are still capable of making informed decisions and aren't afraid to express our dissatisfaction with our dollars.
    Reply
  • 789427 - Thursday, April 07, 2011 - link

    It's not about being customer focussed or not. Quite frankly, what percentage of upgraders will go into this level of detail?

    Furthermore, 25nm sounds better than 35nm to most people and that's salesmen included.

    After all that, it's a victory for transparency for a tiny few.

    In terms of marketing, there's little you can do except re-brand the entire product range.

    e.g. Silver and Silver Pro for the lower capacities, Gold and Gold Pro for the higher capacities and explain on the box that fewer chips means generally lower performance

    The problem here is that this is the cutting edge of technology and that in 12 months time, it will be surpassed. Then how do you re-vamp the line?

    Graphics cards have this problem too and the model numbers are baffling for 99% of first-time buyers.

    What I would advocate is a sticker valid for 3 months on the product that lets you know which product in terms of performance you are buying and a URL you can visit to check for an update.

    e.g.

    Your product: xyz 300-35
    is better than xyz 300-24
    but is worse than 300-ii

    Check Real performance figures here: URL

    Then it would be nice for salesmen to allow customers to verify this.
    cb
    Reply
  • cactusdog - Wednesday, April 06, 2011 - link

    Yep, at least OCZ have made a commitment not to use slow hynix nand and are being more transparent with real world performance but its all too little too late.

    Branding drives with the 25 or 34nm prefix is redundant now that all(or most) nand being produced is 25nm. Ocz made no real attempt to fix the problem when they needed to, and continued to sell the drives even after the consumer backlash.

    I disagree with Anand that other manufacturers of sandforce controller drives hide the specs as OCZ did. Corsair rebranded their 25nm drives from the start. Other non sandforce drives from Intel also rebranded their 25nm drives.

    Its true that many companies use different components and use the same branding but rarely does the performance vary as much as 30%. 30% is a huge and not acceptable for high end expensive parts..

    Its a pity Anand didnt really have anything to add on the Spectek issue that hasnt already been said. I find it hard to believe a company like Micron would sell very expensive nand cheaper to Spectek unless there is some problem with it.

    Saying Spectek nand must be OK because it is still rated at 3000 cycles doesnt sound very thorough or tell us the whole story. The cycle rating could have very different testing standards between Micron and Spectek.

    I would have thought it would be easy for someone like Anand to ask Micron or Spectek if the Spectek nand is tier 1 nand or not. I wouldnt trust OCZ response given their track record.

    Overall though thanks Anand for sticking up for the consumers.
    Reply
  • Powerlurker - Wednesday, April 06, 2011 - link

    According to their corporate website "SpecTek began at Micron in 1988 as a component-recovery group." which would lead me to believe that they're Micron's low-end brand for disposing of lower performing dies. Reply
  • Xneb - Thursday, April 07, 2011 - link

    That is correct. testing is the same though so end users should not be able to tell the difference between spectek and imft nand in these drives. Reply
  • sleepeeg3 - Thursday, April 07, 2011 - link

    You can't fault him for reporting honestly. There is no concrete data that shows Spectek NAND is inferior to Micron. Reply
  • Alkapwn - Wednesday, April 06, 2011 - link

    Ditto! Keep up the great work! We all appreciate it greatly! Reply

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