SSD Write Endurance 25nm Vs 34nm test

[CAT-THE-FIFTH]

There are some really interesting results in thie thread:

http://www.xtremesystems.org/forums/...e-25nm-Vs-34nm

[Kumagoro]

Seeing what has happened to A01s Vertex2 it has put me off sandforce SSDs, even if you are
unlikely to get to that point after a few years.

[CAT-THE-FIFTH]

Seeing what has happened to A01s Vertex2 it has put me off sandforce SSDs, even if you are
unlikely to get to that point after a few years.

What was the problem??

[Kumagoro]

If I read it right after 30TB of writes duraclass had kicked in lowering the write speed to 6MB/s
and doing a secure erase would not remove the limit and seems to be all about protecting the drive for warranty purposes.

If i remember right it seemed that after the 30TB write limit duraclass woukd kick in strongly after 500GB of writes which they speculated was a daily limit, if it is then its still massively high really for home use obviously. However they had done benchmarks where it was in-between its top performance and lowest of 6MB/s, so it doesnt seem to be an all and virtually nothing throttling at 500 GB and I wonder after how many writes does it take before kicking in and by how much.

its around
http://www.xtremesystems.org/forums/...=1#post4862106

It would have been interesting to see Ao1 investigating it further

[Sputnik]

After all these problems with sandforce SSD's I'm starting to wish I'd bought a Crucial C300 instead.

[Blackmage]

I think this is pretty bad, who would of known a SSD to have throttle technology. I can see why it's there(to protect from a drive failure) but I would of expected a secure erase to gain some speed back?

Do other SSD's do this or something similar?

[CAT-THE-FIFTH]

TBH,I bought my 60GB OCZ Vertex which has an Indilinx Barefoot controller because it only cost me £59.99 brand new!!

If I was to spend around £80 to £200 on an SSD I would probably go with one of the Crucial or Intel drives although they do seem slower than the latest OCZ and Corsair ones.

[mrwhippy99]

wow, i didn't know about CDI.
my vertex 2 is a few days over 1 year powered on and down to 80%.
ouch. time to upgrade or shutdown more...

[MadduckUK]

INTEL X25MG2
Work Time: 5184 hours (7 months 6 days)
Powered on: 982 times
Health: 99%
Estimated lifetime 8 years 6 months 22 days

that will do

[Bugbait]

Does 25nm NAND have a shorter theoretical lifespan? Yes. Will this matter for the majority of users under normal conditions? Unlikely.

I considered the lower lifespan vs performance recently when I was shopping for a new SSD and went for higher performance. Why? After almost 2 years my old Intel X-25M G2 drive shows 97% life remaining. This was used as the primary OS and gaming drive (mainly WoW) until it was moved to my wife’s laptop. That’s 3% of the life in 2 years using the PC almost every day for hours.

Being an impatient man I’ll go for the higher performance over longevity every time.

[Sputnik]

Most of us probably won't be using our current SSD's in 5 years anyway. So I don't think the life cycle will effect us much.

[CAT-THE-FIFTH]

The current hard drive I have in my secondary system is over 4 and a half years old. TBH,under three years is still quite a low lifespan. At least 4 years should be the minimum IMHO.

Intel offers a 5 year warranty on their 320 series SSDs so it looks like I might go with them even though they are not the fastest.

[Bugbait]

If you’re using an SSD as a cache drive with a lot of turnover then lifespan may be an issue. Anything that does a lot of rewrites such as 3D rendering, movies, etc. probably shouldn’t be placed on a (non-enterprise) SSD anyway unless you have deep pockets. For OS and general use, including games the refresh is relatively low so I don’t see why an SSD, regardless of NAND wouldn’t last 10+ years. Really does depend on individual usage though. As above, I used 3% of the estimated life of my primary drive over a 2 year period. In that time I rebuilt the drive from scratch atleast 20 times for various reasons (mostly to do with overclocking tests).

[CAT-THE-FIFTH]

Supposedly I have used 6% of the life of my OCZ Vertex within the first 5 to 6 weeks. That is with TRIM and ACHI enabled,the page file on a hard disk,no defragmentation and hibernation and sleep disabled. I don't download that much too and I only have Sins of a Solar Empire installed on the SSD. All my other games are installed on a hard disk.

OTH,it is probably more like SSDLife is not a good piece of software as it seems all the original Vertex drives seem to have a short life span. It is hard to say though.

Still, the next SSD I am getting is an Intel or Crucial drive especially since the SandForce drives have throttling technology.

[Kumagoro]

I had a look around the xtreme forum and Ao1 made another thread about it below.
Havent read it though.

http://www.xtremesystems.org/forums/...php?62-Storage

[CAT-THE-FIFTH]

Intel might be using SandForce controllers in the future:

http://thessdreview.com/latest-buzz/...o-be-released/

http://thessdreview.com/latest-buzz/...ce-capacities/