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Data Storage Upgrades Hardware

OCZ Wants To Cache Your HDD With an SSD 189

Posted by Soulskill
from the wonder-if-this-will-cache-on dept.
sl4shd0rk writes "OCZ is coming out with Synapse Cache; an SSD cache for your hard drive. The SSD runs software that copies data into the cache from your hard drive as you work with it. The data sits on the SSD until it gets less activity and gets flushed to the hard disk. Aside from boosting your IOPS to 10k/75k (read/write), the SSD also supports AES encryption, SMART and TRIM."
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OCZ Wants To Cache Your HDD With an SSD

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  • by DigiShaman (671371) on Friday September 23, 2011 @01:20PM (#37493760) Homepage

    Not sure I'm feeling the love for this concept. On the reads, sure. Nice idea. Writes however, not feeling the love. For whatever the reasons, PC hardware can lock up (CPU, video, motherboard, RAM etc) or because of buggy device drivers on the OS. In any event, how well can this device recover from a dirty-cache shutdown? What happens if the device just dies? Will I still be able to mount the HDD and recover data? It would be interesting to see how a journaling file system handles the abstraction of one volume read/written between two different drives. Were not talking about RAID5 here where you at least have parity data to recover from.

  • by wisebabo (638845) on Friday September 23, 2011 @01:30PM (#37493894) Journal

    I mean did you know many people have laptops that can take a 12.5mm tall HDD? But most people only buy a 9mm drive?

    So it would be nice if OCZ (or another manufacturer) could make a very thin (3mm) card that would piggyback on top of the HDD. It would also have to a SATA drive connector to attach it to the motherboard and then a loop through cable to attach to the drive. In this way the end user could add a SSD cache to their existing laptop!

    Is this feasible or am I missing something?

  • Re:So... (Score:4, Interesting)

    by hairyfeet (841228) <bassbeast1968&gmail,com> on Friday September 23, 2011 @02:47PM (#37494830) Journal

    Well according to this answer [superuser.com] by a developer you CAN use an SSD for readyboost, its just isn't as straight forward and you can't use the whole drive. personally I've been avoiding SSDs until they get the bugs out as the experience from my gamer customers (who spent waaaay more than i would have for top o' the line SSDs) is that Jeff Atwood at coding horror is correct that SSDs should be judged on a hot/crazy scale [codinghorror.com] as while they are crazy fast the fail crazy often.

    To me it isn't THAT they fail it is HOW they fail that has me avoiding them. With HDDs I can't remember the last time I had an HDD that failed without plenty of clear warnings something was up. Windows delayed write fails, or SMART errors, temp going nuts, there was ALWAYS a clear warning that there was trouble in HDD town. With both of the gamers there was NO WARNING with the SSDs, they just flipped the switch and....nothing. With the HDDs I was always able to get the data off before they bought the farm, minus a few bad sectors of course, but with the SSDs it was like they didn't exist, it was just...nothing.

    so while using it as a cache (as long as the cache is ALWAYS backed up like Readyboost) sounds fine i really can't see recommending an SSD until they get the bugs out. you would have to spend all your time running back ups or RAIDing the drive constantly to remove the risk, and that is just more trouble than its worth. Besides with Superfetch and Readyboost if you have a large amount of RAM (and what geek don't right? hell even my netbook is gonna have 6Gb on it) then everything you use often is already preloaded into RAM so unless you boot daily i doubt you'd see much difference, as nothing yet beats RAM speed.

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