ZFS + replacing failing hard-drive.

[David Cecil]

Just to be clear, I've seen these errors for SATA and PATA drives.

Dave

ext Rick C. Petty wrote:
> On Fri, Apr 20, 2007 at 09:14:06AM +1000, Antony Mawer wrote:
>   
>> Just another "me too". I've seen (S)ATA-related problems on 6.x (mostly 
>> 6.0) based machines, in some cases these appear to have been physical 
>> drive errors,  but I haven't been able to verify each individual case. I 
>> don't know if quality control is sorely lacking on newer SATA drives or 
>> if it's something else... it has caused me to question whether or not 
>> there might be a driver/OS level issue...
>>     
>
> I'm reluctant to point fingers at the drives (although this is often a good
> first guess)..  I have access to a few dozen disks from two separate SATA
> batches.  I've noticed that when the identical drives are on the same
> Promise controller, FreeBSD reports DMA timeouts occasionally.  I've never
> seen anything similar on Ubuntu, although since the timeouts are
> unpredictable it's possible there may be throughput differences between the
> two OSes.
>
> -- Rick C. Petty
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