[Voyage-linux] SSDs, CFs and write endurance

[Jeff Ramin]

I've done some more research - it seems there is a difference
in the physical medium. Do a search for "slc mlc flash", and you
should see some docs that describe the difference.

I am currently of the opinion that a current SLC CF card,
assuming the onboard controller is capable of EEC and wear
leveling, can be used for a read-write file system.

For many applications, I think the cheaper MLC CF variety
could even be used in such an environment, although they
would be somewhat less reliable.


Jordi Soucheiron wrote:
> I'm interested in this too. Does anybody have more info about this?
>
> 2009/4/15 Jeff Ramin <jeff.ramin at singlewire.com>:
>   
>> Is there any difference in the underlying physical medium between
>> a solid state disk and a compact flash card? If not, why is it "bad"
>> to mount CFs as read-write, when that's how SSDs are used day in
>> and day out?
>>
>> I'm seriously considering using the CF on an ALIX board as a
>> standard read-write disk. I've read many articles and posts that this
>> is a bad idea, but with the latest CF cards out today, is that still
>> true?
>>
>> Here's an article on the subject. Comments?
>>
>> http://www.storagesearch.com/ssdmyths-endurance.html
>>
>> Thanks.
>>
>> --
>> Jeff Ramin
>> Software Engineer
>> Singlewire Software
>> PO Box 46218
>> Madison, WI 53744-6218
>>
>> Phone Direct - 608.298.1024
>> www.singlewire.com
>>
>>
>> _______________________________________________
>> Voyage-linux mailing list
>> Voyage-linux at list.voyage.hk
>> http://list.voyage.hk/mailman/listinfo/voyage-linux
>>
>>     
>
>
>
>