Re: understanding the cause of ATA failures

[Stan Hoeppner <stan@hardwarefreak.com>]

Is there a SATA backplane involved or is each drive cabled directly to the
controller?  If backplane, is it active or passive?  Whose product is it?

Is this a relatively new machine or has it been running for some months
without problems until recently?

-- 
Stan


Ludovico Cavedon put forth on 3/18/2010 5:13 PM:
> Tim Small wrote:
>> Do the drives have any SMART errors logged?  Any reallocated sectors? 
> 
> No SMART errors logged.
> No reallocated sector for all the hard drives.
> 
> Well, I forgot to mention another weired thing. This is what happneded:
> * sdc failed and got removed from the RAID array (I pasted the log in my
> previous email)
> * sda got removed (no logs available)
> * sdb got removed (no logs available)
> 
> When I realized tha machine was down, I found that the *sdd* was giving
> IO errors. So I had to replace sdd, but sda, sdb and sdc, who were those
> drives that "failed" first, are working good.
> 
>> Do you run smartd, or any other smart data collection?  I've had a load
>> of trouble with WD drives when smart data collection was enabled. 
> 
> No smartd running.
> 
>> Haven't had time to get to the bottom of it, but I suspect a firmware bug.
> 
> SATA controller firmware bug?
> Do you think changing the controller mode from "AHCI" to "IDE" in the
> BIOS might help to prevent these errors?
> 
> Thanks for your answer,
> Ludovico
> --
> To unsubscribe from this list: send the line "unsubscribe linux-ide" in
> the body of a message to majordomo@vger.kernel.org
> More majordomo info at  http://vger.kernel.org/majordomo-info.html