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My Vertex2 SSD is crawling. - Page 3

post #21 of 27
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Quote:
Originally Posted by gmikol View Post
How many benchmarks have you run? And in how short of a time? AS-SSD writes at least 1GB to the disk (if not 4GB...1 GB per test mode). You may have triggered the mode that protects the NAND lifetime from excessive writes (I believe SandForce calls this DuraClass). This will throttle writes (in an attempt to protect the write lifetime of the flash chips) for some period of time, depending on exactly how hard you've pushed the drive. It will recover over time due to it's idle time garbage collection, if you give it a chance to work.

Also, keep in mind that AS-SSD (as does Crystal DiskMark, I believe) uses un-compressible data for the writes. Since the Sandforce controller relies on data compression to achieve it's published 275 MB/s writes, the write performance in the real world will be less than that.

Your read scores look just about right compared to published results on various review sites.

Hope this helps.
Thanks man, its a con that they can write the specs on a box.

Its like me making a car and then testing the breaks by driving it in to a solid concrete block, therefore giving it no stopping distance *TrollFace*
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post #22 of 27
Don't panic!!!!

I specifically read on the OCZ forum that this particular benchmark is a bust with these drives. Try a different benchmark.

Try Crystal Disk Mark or ATTO. Pretty sure I recall reading about this on the OCZ forums.
Edited by Arthur Hucksake - 2/4/11 at 9:34pm
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post #23 of 27
Quote:
Originally Posted by Arthur Hucksake View Post
Don't panic!!!!

I specifically read...

Pretty sure I recall reading...
^
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post #25 of 27
Quote:
Originally Posted by Plex View Post
^
LOL!!!

It comes to mind, strongly. I will say that as I remember crying after running that particular benchmark.

Here's one quote, "AS-SSD will show the lowest speeds as the data it uses cannot be compressed."

There are alot of threads on here that mention that particular benchmark, it's because AS-SSD doesn't account for on-the-fly compression so the results suffer.

http://www.ocztechnologyforum.com/fo...nd-HSDL-drives
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post #26 of 27
Thread Starter 


That seems better .. thanks guys
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post #27 of 27
Also, if you run alot of benchmarks on a SandForce controlled SSD. You can put it into "write protection" mode. Which basically its limits itself to keep from dying early. So, you need to let it rest a few days to "recover". Theres plenty of posts about that on the OCZ forums which have been linked.

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