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SSD owners, post your write usage!

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DarkRogue said:
I have had this drive since the end of October, so a little over 5 months now. PC is on 24/7, except a couple times when I go on vacation for a weekend here and there.

I know Intel rated their NAND at 5k p/e cycles, but I was under the impression that since Micron was part of IMFT, that they'd get the same 5k cycle NAND.
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Taken from Anantech Crucial M4 review http://www.anandtech.com/show/4253/the-crucial-m4-micron-c400-ssd-review
Crucial sent along a 256GB drive populated with sixteen 16GB 25nm Micron NAND devices. Micron rates its 25nm NAND at 3000 program/erase cycles. By comparison Intel's NAND, coming out of the same fab, is apparently rated at 5000 program/erase cycles. I asked Micron why there's a discrepancy and was told that the silicon's quality and reliability is fundamentally the same. It sounds like the only difference is in testing and validation methodology. In either case I've heard that most 25nm NAND can well exceed its rated program/erase cycles so it's a non-issue.
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Either way at your current use you won't wear out your M4 this decade.
 
ensign_lee said:
Wait; how do you use CrystalDisk Info to figure out how much data has been written? All I see with my C300 is 93 Wear Leveling Count. That doesn't tell me anything?
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That tells you that your average erase count of good blocks is 93.

In other words 93 write cycles down 4907 to go 😛
 
Well, it looks like the minimum most SSDs will endure writing is 200TB. Looks like a non-issue.

I've had my Vertex 3 since Dec. 2011, so for five months, and I've written 1.07TB to it. At the current rate, from when I got it, it'd take 45-and-a-half months for it to get to 10TB of writes, which is nowhere near the limit. By 2015 I would barely be scratching the surface, and while I'll still probably have the drive by then, it's good to know in terms of relatively heavy usage you'd be able to use the drive for a decade or more without problems. The P/E cycles issue is way overblown.
 
SSDLife.png
 
That's probably assuming worst case conditions (workloads with the highest possible write amplification, very little free space left on the drive which hurts the efficiency of wear leveling algorithms, etc.). During real world usage they seem to be able to handle far more writes.

And even if it's "only" 72TB, that's still like 13 years if you write 15GB/day to the SSD.
 
I've got a 64GB Micron mSATA at the lab with about 50TB on the ticker. granted it's running an endurance test
 
VirtualLarry said:
Actually, I haven't bothered to move the BOINC (not F@H) stuff to the HD. Maybe if/when I reformat. Currently sitting at 8.7TB of writes after 5 months 8 days of power-on time.
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Sorry, I thought that you said you'd moved it 😱

Can't seem to get what I need off of ssd toolbox. Maybe because I'm using SRT?

edit: found it. 6.59 tb. Bought drive on BF 2009.

Ok, now after fiddling with this, I found out that I don't have writeback cache enabled. I can't seem to figure out how to change that setting on my RAID 0 SRT array. Anybody know how to do it, or if it's even possible?
 
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bryanW1995 said:
Sorry, I thought that you said you'd moved it 😱

Can't seem to get what I need off of ssd toolbox. Maybe because I'm using SRT?

edit: found it. 6.59 tb

Ok, now after fiddling with this, I found out that I don't have writeback cache enabled. I can't seem to figure out how to change that setting on my RAID 0 SRT array. Anybody know how to do it, or if it's even possible?
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I thought SRT wasn't compatable with RST. Anyway, in order to enable Write-Back caching for your RAID0, you need to download Intel Rapid Storage Manager and go under advanced and click 'ENABLE' for write back caching. The Intel SSD toolbox will also run a dianostic on whether you have it enabled or not.
 
F1shF4t said:
That tells you that your average erase count of good blocks is 93.

In other words 93 write cycles down 4907 to go 😛
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I don't think so. That looks like % of useful life remaining.

Otherwise, the new Samsung 830 I just put into my computer already ha 100 write cycles to it when I just formatted it from raw the other day, and that doesn't make sense.
 
ensign_lee said:
I don't think so. That looks like % of useful life remaining.

Otherwise, the new Samsung 830 I just put into my computer already ha 100 write cycles to it when I just formatted it from raw the other day, and that doesn't make sense.
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SSDs from different manufacturers don't use the same SMART attributes. Your 830 reports its wear/writes info differently.

Link to Micron SMART attributes.
http://www.micron.com/~/media/Documents/Products/Technical%20Note/Solid%20State%20Storage/5611tnfd03.ashx

Crucial M4 and C300 have two attributes for determining wear level.
AD - Wear Leveling Count (NAND Write Cycles)
CA - Percentage Of The Rated Lifetime Used (Counts up from 0)
 
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my samsung 830 says ive written 394 GB

thats the only useful stat i can get out of crystal disk or SSD Life

i don't have AD or CA listed in crystal disk

Wear leveling count is "B1" its at 99
nothing called "CA - Percentage Of The Rated Lifetime Used (Counts up from 0)" listed
 
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Read my post again. Those attributes in that interpretation are *only* applicable to the Crucial M4/C400 and C300.
 
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3.24TB on an Intel X25-M 120GB G2 drive that I've had since March 2011

Weird thing is that Intel Toolkit still thinks that it's at 100% for wear out indicator.

I guess I'm writing around 9GB per day to the SSD; a bit higher than others but I did buy this thing to use! It has been 100% reliable
 
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ArchAngel777 said:
I thought SRT wasn't compatable with RST. Anyway, in order to enable Write-Back caching for your RAID0, you need to download Intel Rapid Storage Manager and go under advanced and click 'ENABLE' for write back caching. The Intel SSD toolbox will also run a dianostic on whether you have it enabled or not.
Click to expand...

Not sure what you mean here. You have to use IRST to enable SRT. Are you thinking of TRIM + RAID 0 still not being compatible, perhaps?

I thought that I checked the advanced tabs the other day and it just wouldn't let me click "enable", but I'll check again when I get home.
 
After about a year, I have burned through 187 erase cycles on my Crucial C300, with 97% life remaining.

Looks like I'll throw the drive away before the NAND goes. 😀
 
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OCZ Vertex 64GB shows about 1.9 terabytes since May 2010.

11256 hours of operation, 5252 cell-wearing cycles, health 100%.
 
My 64GB Falcon II doesn't report a GB write number, so I have no idea. I've had it for a bit over two years and it's at 9150 power-on hours. It's on its way out though:

985temp.jpg


13% health and it's dropping at the rate of a point every 2-3 weeks.
 
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