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Questions on Corsair CMFSSD-64N1 64GB SSD


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I just noticed NCIX selling this SSD and I found nothing about it on the web. I'm assuming this was just released recently and silently...

 

My questions are:

1. How does it compare to the S128GB and P256GB models?

2. What does the "M" stand for on the label (labeled M64 on the drive)?

3. What controller is it using (Samsung, Jmicron, Indilinx)?

4. Is there trim support for this drive?

5. Will it be firmware upgradeable to support trim if it doesn't already have it?

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  • Corsair Employees
The 64 Gig Drives are not controller specific drives so we have not specified a controller that we use or will use as it will be subject to change at any time with out notice. And the current Spec of our 64 Gig SSD 9CMFSSD-64N1) is 170 MBps Read and 100 MBps Write. But the current drives are using the JMicron JM602 controller.
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Curious, do these have on-board cache?

A: NO there is no Cache on this SSD, sorry!

 

I was under the impression that most JMicron controllers don't have a cache, which causes system freezes/stutters.

A: As I stated previously that was for the "A" version and we are using the "B" version which has not displayed those symptoms.

but also this is the "B" version that is much more stable
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  • 2 months later...
  • Corsair Employees

jccds

I am sorry but I do not understand your question, but this specific drive in question is no longer in production.

You would have to go with CMFSSD-64GBG2D (Samsung) or CMFSSD-64D1 (Indolinks) drives unless a reseller had old stock of the CMFSSD-64N1 (J-Micron) drives.

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the m64 is not an drive any one should get (unless its the CMFSSD-64GBG2D (Samsung) or CMFSSD-64D1 drives) due to the problems with the JMicron JM602 controller (a or b the problem is still there, untill the new JMicron controller comes out in the next months or towards the end of the year should be avoided until then),

 

if you are got an M64 buy two of them and put them in raid 0 and turn on Write back cache in the intel matrix software so Writes are performed when reads are not happening

 

get the S/P128 corsair SSD or the P256 as thay do not suffer from them problems due to the drives having cache and you do not need to raid the above drives

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leexgx

What are you talking about the CMSSD-64N1 drive using Samsung Flash and the second generation Jmicron controller has no problems; I am using one now and it runs great in fact I am looking for another one that I can use with a Raid setup.

But I would agree the newer Samsung Drives would be better choice if you have not purchased the drives yet. But only because of the faster performance not because there are any problems. I have not seen any issues as of yet and I have reloaded the O.S. on seven different MB's to date and it has and is running great.

You can see the stats on this post about Partition alignment, which correct me if I am wrong but you and several others made a big stink about and that was proven not to be the case.

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Google < The SSD Anthology > and goto page 17 (as there was No point in posting the link as it would of been moded out any way)

 

the new m64 corsair SSDs i believe do not use JMicron any more they use samsung or some other make (we are talking about the controller chip here not the flash and the longevity of the drive)

 

Some motherboards or IDE/AICH drivers setups can have lag it very much so happens when all Blocks on the SSD now need to be erased before an Write can be performed, RAID 0 on intel ICH seems to Hide the issue once the Option Writeback cache is turned on, this is an Luck issue with JMicon drives but if you looked at that page above you can see why it can happen

 

your better getting the Corsair s/p128 (the S128 i have now may be slow on data rate but every thing works fast showing data rate is Not that important, its more Write access times that no SSD maker shows, JMicron controller IOPS is slower then an HDD on Write access once the SSD needs to erase before Write)

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That article was mostly about one of our competitors and they never mentioned our drives.

I have not seen any of these issues as explained here in this article but I would agree go for the next generation drives as they are faster..

Not to mention the Corsair M-64 Drive is no longer available..

From that article and about the controller we used.

For starters, a second revision of the JMF602 controller came out last year - the JMF602B. This controller had twice the cache of the original JMF602A and thus didn’t pause/stutter as often.
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http://rd1ugg.bay.livefilestore.com/y1pZzXjBbsQPzcGPDJiZ6mu5qlXGXhrdP8O5X0X22Lca0qxe6IR2WLylni4w5Ay8M5DQhaRi8WAVcavnHPGR9VaEACDjzdgs3O0/1JMicronSSD.png

 

above is what happens once the SSD has to erase before write, as from my tests on my Own corsair S128 the access times and Write MB/s are nothing like the above, as long as the current SSD that are been sold are not using JMicron all is ok, when they come out with new version

 

the topic is old i think for the most part due to you cant buy the older m64 now

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from my SSD i go with the samsung based ones even thought mine is slow on the data rate side, it operate Far faster then my hdd, as Intel have come out with something new corsair may lower there prices soon so 50/50 if i get the new P128 (but personally i not sure if i see the improvement maybe in COD4 when its loading the maps but its loading them faster then what my HDD was any way)

the Indilinx ones seem to require the wiper tool running every week or so as thay seem to degrade alot faster (why does Corsair recommend putting SSDs into RAID 0 as there is currently No way to run the wiper tool or use windows 7 TRIM command does not work on RAID only on SATA/AHCI mode when they degrade they be slower then one SSD in its own)

 

 

only thing that lets them down (S/P) is no Wiper Trim tool, But my corsair SSD has Yet to degrade still operating at its spec speeds, so debatable if it needs one but when it does degrade having to use HDDerase is an pain (have to clone the SSD)

 

you really need to put in your FAQ not to do full formats if they want to do an full format to erase every thing they should use the HDDerase tool and then use an Quick format only (as an full format will slow the SSD down)

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  • Corsair Employees
the Indilinx ones seem to require the wiper tool running every week or so as thay seem to degrade alot faster (why does Corsair recommend putting SSDs into RAID 0 as there is currently No way to run the wiper tool or use windows 7 TRIM command does not work on RAID only on SATA/AHCI mode when they degrade they be slower then one SSD in its own)

A: Where have we suggested using a Raid? I don't know that I have ever made that suggestion, only if someone had asked about running them in a Raid configuration, and that is not a suggestion!

 

only thing that lets them down (S/P) is no Wiper Trim tool, But my corsair SSD has Yet to degrade still operating at its spec speeds, so debatable if it needs one but when it does degrade having to use HDDerase is an pain (have to clone the SSD)

A: There is no utility needed for the drive you have and why none has been published or posted.

 

you really need to put in your FAQ not to do full formats if they want to do an full format to erase every thing they should use the HDDerase tool and then use an Quick format only (as an full format will slow the SSD down)

A: Thanks for the suggestion we will review the F.A.Q this week and see about adding that.

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A: Where have we suggested using a Raid

the product main page that relates to the X64/128/256 http://www.corsair.com/products/ssd_extreme/default.aspx

 

and the second and 3rd response from you are related to each other,

you have to do an low level format to reset the SSD to an new state (if it has degraded but thats more samsung fault not corsairs for not providing an tool or corsair not nagging for one), where if there was an Wiper Trim tool for samsung based SSD that would not be needed to use HDD erase as thats complicated and time consuming for the end user not me but your avg joe it would be

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should not be reference to it really if it was samsung that was been set in raid 0 it takes months (i tell you when mine does, could take some time) for them to degrade, but Indilinx ones can degrade in an week or so on there currant 1.3 firmware (that all makes that should be using) why the wiper tool is needed more for them type of drives

 

SSDs do not need RAID due to the IOPS and TRIM does not work on RAID so it end up slower then 1 SSD

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The Tools do not work in RAID (not at the moment but not likely to support it yet or at all up to RAID driver makers, No point in RAID for SSDs any way not with the second gen ones), why Indilinx Product page should not have that info on there relating to use me in raid (but no warning about they be slower then 1 SSD in an week or so), really i think your samsung based SSDs are the best option (as long as you do not do an full format or run out of free space they are fine), just need to ask them for an Trim tool and Firmware updates as your lagging behind the Prime make of Indilinx based SSDs (there is 2-3 dif firmwares for the corsair P based SSDs)
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There is no data to support that in a RAID configuration there will be an issue.

But I have set these up for lab testing to see if we can duplicate any of these issues but to date we have not. So I am not sure what to tell you other than the information you have stated might be from another source not using our drives.

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