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[RT] OCZ Launches New Z Drive 4500 PCIe SSD Series - Page 7

post #61 of 95
Im still holding out for sata express though that is starting to seem like a pipedream at this point.
post #62 of 95
Quote:
Originally Posted by CynicalUnicorn View Post

One, I have 17GiB left on my SSD. Help a brother out? wink.gif Two and seriously, Crucial has always been awesome for reliability. When everybody else had SandForce drives committing slow suicide, Micron was making reliable drives. I don't think you should see any performance decay unless NAND starts to die and the spare area is reduced. Since larger NAND nodes are, assuming all else is equal, more durable, that should not be an issue for a long time.

Well, the crucial c300 that was apart of the endurance test we did at xs, the guy stopped updating at around ~450TiB host writes. I don't think I'm able to use smartctl to check individual drives in an array (though I might be wrong), but either way even an extreme guess would be my array has about 10TiB written. So yeah I'd say I'm in good shape. I will be parting out these drives for various htpc/kid's computer functions when I do a full rebuild for haswell-e. Probably go with 3x 840 pro in R0.
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post #63 of 95
Quote:
Originally Posted by CynicalUnicorn View Post

Unless they updated the 840 Pro, that's still using the MDX. The 840, now discontinued and succeeded by the EVO, also used MDX. The EVO is the only one using MEX I believe.
But the 840 Pro is an older SSD..... Samsung newest controller is still the MEX. That's not saying they are not still using MDX though.
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post #64 of 95
Quote:
Originally Posted by DuckieHo View Post

But the 840 Pro is an older SSD..... Samsung newest controller is still the MEX. That's not saying they are not still using MDX though.

Is it really that different though? I thought the MDX -> MEX was just to change the controller to address triple level cell flash?
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post #65 of 95
MDX was used in vanilla 840s. MEX actually benefits performance. If you look at an EVO's performance (after the buffer is exhausted) vs an 840 under the same conditions, the EVO runs ~30-50% faster IIRC.
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post #66 of 95
So what does the 840 Pro have mdx or mex ?
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post #67 of 95
Quote:
Originally Posted by EniGma1987 View Post

Is it really that different though? I thought the MDX -> MEX was just to change the controller to address triple level cell flash?
Quote:
Originally Posted by diggiddi View Post

So what does the 840 Pro have mdx or mex ?


http://www.anandtech.com/show/7152/new-elements-to-samsung-ssds-the-mex-controller-turbo-write-and-nvme
"Samsung’s naming scheme from the 830 onwards has been MCX (830), MDX (840, 840 Pro) and now the MEX with the 840 Evo. This uses the same 3-core ARM Cortex R4 base, however boosted from 300 MHz in the MDX to 400 MHz in the MEX. This 33% boost in pure speed is partly responsible for the overall increase in 4K random IOPS at QD1, which rise from 7900 in the 840 to 10000 in the 840 Evo (+27%). This is in addition to firmware updates with the new controller, and that some of the functions of the system have been ported as hardware ops rather than software ops."
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post #68 of 95
That evo is a beast then cos it comes to play when it really counts @ 4k random QD1
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post #69 of 95
That's because it's using TLC NAND as if it were SLC moreso than the new controller, although it certainly helps.
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post #70 of 95
I've had ONE problem with an OCZ product. Out of maybe 8 or so that i've owned over the years. BUT it was a sandforce fault to blame for my vertex 2 having a cold boot bug, but they sent a new one, and I was able to update the firmware. No problems since.
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