RAID 5 Multiple Hard-drives failure

[Scot L. Harris]

On Tue, 2006-03-14 at 12:32 -0300, Mariano López Reta wrote:
> On Tue, 2006-03-14 at 12:27 -0300, Mariano López Reta wrote:
> 
> > Hmmmm, interesting. Then, I would say that the problem concentrates on
> > the controller or the drives, since you have other disks (I'm assuming
> > same make/model here), that has not failed. Do you have other machine
> > were you can check if the drive respond or if it went bad definitely? If
> > it is physically damaged, then I would say that the problem is almost
> > surely on the drive itself. If some (or most or all) of the errors can
> > be corrected using other controller/motherboard, then the fault is on
> > the electronics. 
> 
> 
> One more thing I forgot:
> 
> The power supply theory is very plausible, also. To check if it's OK,
> you measure all four cables on any peripheral connector, to check for
> +5, -5, and +12. Of course you'll not remain looking at your voltmeter
> for a week, so if they measure OK when you check, and the failure is
> random, you'll have to try to change the (complete) power supply. They
> are a cheap part (around 50 bucks for a nice quality one). So try that
> and if the problem does not go away, then there's nothing else to put
> suspicions on. Just blame the drives.
> 
> Hope this helps, 

What size power supply does the system have?  How many harddrives and
other things do you have connected to it?