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What's a Vertex 4 M SSD?
- Thread starter lloyd709
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I've just found this link - seems it's got different 'nands' what ever that means but no one knows what difference they will make!!
http://www.ocztechnologyforum.com/forum/showthread.php?104206-Vertex-4-model-VTX4-25SAT3-512G-M
http://www.ocztechnologyforum.com/forum/showthread.php?104206-Vertex-4-model-VTX4-25SAT3-512G-M
The more expensive one likely has "enterprise class" NAND in it, and possibly other enterprise features such as a capacitor to ensure writes complete properly if power is lost, etc.
NAND flash wears out (Unfortunately unlike with a spinning disk there is very little warning - no clicks, etc of impending failure). Enterprise drives are good for more re-writes before failure.
That's my guess in any case - most flash vendors provide "consumer" and "enterprise" class drives in this way.
NAND flash wears out (Unfortunately unlike with a spinning disk there is very little warning - no clicks, etc of impending failure). Enterprise drives are good for more re-writes before failure.
That's my guess in any case - most flash vendors provide "consumer" and "enterprise" class drives in this way.
And that is why good SSD makers have routines in the Firmware that will detect the impending cell failures and use the reserved cells instead, marking the "soon to be bad" cells as not to be trusted.
Yes. Which is all well and good and normal until you run out of the spare cells - the drive doesn't let you know when it starts consuming the spares, or if they are running low.
And then they fail with no warning. Enterprise SSDs have more spare cells, too. You need to make sure you're on top of your backups.