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Re: RAID 5 Multiple Hard-drives failure

On Tuesday 14 March 2006 08:37, Mariano López Reta wrote:
> On Tue, 2006-03-14 at 08:21 -0500, Reuben D. Budiardja wrote:
> > So my questions having said all that, is there any thing else other than
> > a real hard-drive problem that would cause something like this ?
> > In other words, could the problem be in the controller, motherboard, etc
> > other than the hard drive itself that would cause hard-drives to fail
> > like that ? Or is it just Maxtor makes bad drives ?
> > Or is a consumer level hard-drive just cannot be used for this kind of
> > work
> >
> >
> >From my experience on systems' admin (almost 20 years now), is that this
> kind of failure might be to some of this issues:
> - electrical problems: Have seen many drives failures due to
> inappropiate grounding of the electrical installation, lightning coming
> thru the electrical network, etc. This is the most important
> (underestimated) cause of failure in my case.

OK. I'll try to check for this but I am not sure if there's really anything I 
can do about this, since this machine is on university campus using 
university electrical installation. The machine is already on UPS (with 
proper shutdown in the event of electrical outage, etc). 

> - controller (in this case, motherboard) failure: sometimes is not the
> drive that fails, but the controller, rendering the disks useless.

I am suspecting this too. But something I was not sure, could a bad controller 
render a drive to be physically damaged / bad as well ? My controller is on 
PCI card, any way to determine if they are bad ? or is the motherboard ? The 
system drive that plugs directly to the motherboard (not part of the RAID 
array) has never had any problem. 

Thank you for your respond.

Reuben D. Budiardja
Dept. Physics and Astronomy
University of Tennessee, Knoxville, TN

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