Disappointed, I went back to OCZ

OCZ was worried. The last time I reviewed one of their SSDs I was truthful about it, and it hurt their sales considerably. Customers were returning drives, and to OCZ’s credit, they stepped up and even accepted some returns themselves - something that most manufacturers wouldn’t have done. Regardless what they had told me, there was some admission of fault there. Those JMicron drives were nothing short of crap.

As soon as OCZ started getting word that I wasn’t pleased with Vertex, they went into a state of panic. These drives all do very well in synthetic HDD tests like HDTach and ATTO, that’s generally all they’re reviewed in, so that’s all they’re tested in. But now OCZ was hearing that the Vertex wasn’t passing some of my tests and they had no idea what it was failing or why.

I tend to do a good job of keeping what tests I run secret until the review is published, so there isn’t any unfair optimization. I purposefully introduce new tests to our performance suites to help keep manufacturers honest and optimizing for real world usage scenarios rather than specific benchmarks. OCZ had no idea what I was running, but they knew that the Vertex wasn’t doing well.

Summit on the other hand was performing just fine, but that’s an expensive drive. Vertex was supposed to be good, it should’ve been good, there’s no reason for it to be performing this poorly. I ran the infamous iometer test to see what was going on:

Iometer 4KB Random Writes, IOqueue=1, 8GB sector space IOs per second MB/s Average Latency Maximum Latency
Original Pre-release OCZ Vertex 20.7 0.08 MB/s 48.2 ms 484.5 ms

 

How on earth is this acceptable at all? Average latency of 48.2ms and a maximum latency as bad as the Apex and G.Skill Titan drives? I’ve heard some SSD vendors dismiss the iometer results but let me caution you against that. What these numbers are telling us is that on average, when your OS goes to write a 4KB file somewhere on your drive, it’ll take nearly 50ms. That’s 4.5x longer than a 5400 RPM 2.5” notebook drive and that’s the average case. What part of that sounds acceptable? Anyone who tells you otherwise is delusional.

I thought for sure that the drive was broken and that we’d made no progress since last fall. But the drive hadn’t launched yet, while there were glowing reviews of it, no one had wasted any money. I wrote an email to Ryan Petersen, OCZ’s CEO. I described my findings and told him that while the Vertex’s performance was better than any of the JMicron solutions, it was unacceptable for anything other than perhaps extremely light, single-tasking usage.

I told him it sucked. He said that wasn’t fair. We argued over email but he came back and asked me what I needed to see to make the drive better.

I told him I’d need an average response time in the sub-1ms range and a max latency no worse than Intel’s 94ms. I didn’t think it would be possible. I was prepared for OCZ to hate me once more. He told me to give him a couple of days.

OCZ Sends Me SSDs, Once More Once More, With Feeling
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  • strikeback03 - Wednesday, March 25, 2009 - link

    I was wondering the same thing. I'd guess it would be a lot of writing/erasing, so an SSD might not be the best from a longevity standpoint, but if your system is hitting the scratch disk often then the speed might make it worthwhile. Reply
  • mikepers - Tuesday, March 24, 2009 - link

    Anand,

    I wanted to compliment you on what I think was an excellent article. This is the type of thing I really have always liked from Anandtech. The detailed background, the technical reasons for the issues and then a thorough review of the current state of things.

    I just finished upgrading my desktop. The only remaining item I wanted to replace was the hard disk. I had been thinking about getting a Velociraptor but instead I just ordered a 60GB Vertex from Newegg.

    Thanks again for all the work.

    Mike P.
    Reply
  • ameatypie - Monday, March 23, 2009 - link

    That sure was a lot to take in! Fantastic article though, it has really opened my eyes to the possibilities that Solid State Drives provide. Probably wont be buying one in the immediate future given the so-called depression and such things, but i will certainly keep up with SSD progress.
    Thanks again for your fantastic articles - im sure im not the only one who really appreciates them :)
    Reply
  • coopchennick - Monday, March 23, 2009 - link

    Hey Anand, I just finished reading through this whole article and I'm very impressed with the thoroughness and how informative it was.

    You just acquired a new regular reader.
    Reply
  • zdzichu - Sunday, March 22, 2009 - link

    Very nice and thorough article. I only lack more current status of TRIM command support in current operating systems. For example, Linux supports it since last year:

    http://kernelnewbies.org/Linux_2_6_28#head-a1a9591...">http://kernelnewbies.org/Linux_2_6_28#h...a9591f48...
    Reply
  • Sinned - Sunday, March 22, 2009 - link

    Outstanding article that really helped me understand SSD drives. I wonder how much of an impact the new SATA III standard will have on SSD drives? I believe we are still at the beginning stage for SSD drives and your article shows that much more work needs to be done. My respect for OCZ and how they responded in a positive and productive way should be a model for the rest of the SSD makers. Thank you again for such a concise article.
    Respectfully,
    Sinned
    Reply
  • 529th - Sunday, March 22, 2009 - link

    The first thing I thought of was Democracy. Don't know why. Maybe it was because a company listened to our common goal of performance. Thank you OCZ for listening, I'm sure it will pay off!!! Reply
  • araczynski - Saturday, March 21, 2009 - link

    very nice read. the 4/512 issue seems a rather stupid design decision, or perhaps more likely a stupid problem to find this 4/512 solution as 'acceptable'.

    although a great marketing choice, built in automatic life expectancy reduction.

    sounds like the manufacturers want the hard drives to become a disposable medium like styrofoam cups.

    perhaps when they narrow the disparity down to 4/16, i might consider buying an ssd. that, or when they beat the 'old school' physical platters in price.

    until then, get back to the drawing board and stop crapping out these half arsed 'should be good enough' solutions.
    Reply
  • IntelUser2000 - Sunday, March 22, 2009 - link

    araczynski: The 4/512 isn't done by accident. It's done to lower prices. The flash technology used in SSDs are meant to replace platter HDDs in the future. There's no way of doing that without cost reductions like these. Even with that the SSDs still cost several times more per storage space. Reply
  • araczynski - Tuesday, March 24, 2009 - link

    i understand that, but i don't remember original hard drives being released and being slower than the floppy drives they were replacing.

    this is part of the 'release beta' products mentality and make the consumer pay for further development.

    the 5.25" floppy was better than the huge floppy in all respects when it was released. the 3.5" floppy was better than the 5.25" floppy when it was released. the usb flash drives were better than the 3.5" floppies when they were released.

    i just hate the way this is being played out at the consumer's expense.
    Reply

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