Hello Len, thenks for your answer, i need a clarification on wheter it
could be a software or a hardware problem, fortunatelly i have an exact
system, so what i am going to do is to swap the four drives on the first
system to the second system, and with more time i will make the required
tests.

p.d. the machine is debian 4.0 amd64 system.


Lennart Sorensen wrote:
quoted text
> It seems to me that if the kernel says there is an io error explicitly 
> on sdd, then I don't think it really should be any fault with the raid
> setup.  My assumption would be that there is a flacky drive, a flacky
> cable, or maybe a flacky port on the controller.
>   
I change the drive and the problem remains, i will check changing the
hard drive cables, to see if that is the problem, the problem has
apperead three times in nearly five months, so what will be your bet ?
quoted text
> It would be interesting to know what happened if you swapped the cables
> between sdd and another drive to see if the problem follows the port or
> the drive or the cable (you could move sdd's cable to sda, and then
> connect sdd to sdc's port and sdc to sdd's port, and if sda then fails,
> it should be the cable, if sdd (was sdc) fails, then it must be the
> port, and if sdc (was sdd) fails then it must be the drive.  At least
> that is what I think.  the raid should deal with moving the drives
> around just fine since it should be using the UUIDs for assembly anyhow.
>
> --
> Len Sorensen
>   


-- 
Nestor A. Diaz
Ingeniero de Sistemas
Tel. +57 1-600-5490 x 211
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Bogota, Colombia


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