[dm-crypt] Memory errors and and 3TB RAID5 partition

Federico Foschini undicizeri at gmail.com
Wed Jan 16 13:06:44 CET 2013


Ok thank you all!

2013/1/16 Matthias Schniedermeyer <ms at citd.de>:
> On 16.01.2013 12:23, Arno Wagner wrote:
>> Hi Frederico,
>>
>> An alternative is to verify each write. Here you have to be careful
>> to empty all buffers and caches before doing it. That is what I
>> do for large files.
>
> My M.O. is to make MD5(*) sums of just about every file. So after i move
> files around, i just verify the MD5 sums. The amount of data moved is
> usually (a lot) bigger than available RAM, so i usually forgo clearing
> the cache, otherwise i do a umount/mount-cycle before verifying the MD5
> sums.
>
> I'm doing this since a few years ago when i had trouble with a
> particular USB2<->Sata chip that had a rare tendency to corrupt a
> specific bit-pattern every now and then. Since then i had never any
> trouble with data-corruption.
>
>
>
> *:
> This case doesn't concern security, so MD5 is "good enough".
>
> --
>
> Matthias
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-- 
Federico Foschini.


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