Re: disk testing

On Tuesday September 14, hfranklin97@excite.com wrote:

I just bought 3 sata drives and set them up in a raid5 array. About
45% into syncing them, the first disk gets an error and goes
offline. I figure I did something wrong, so I retrace my steps and
try again, and again, I get an error about 45% of the way through,
the first disk errors and goes offline.  

Presumably a read-error.  Did the kernel logs indicate the error type?

So, I think I have a bad disk. But wait! I created a raid 1 array on
the remaining two to see if there are any other errors later on
those two (there weren't), and I create a normal partition/fs on the
failing disk. I begin writing various bitpatterns across the entire
disk and reading them back, trying to find the problem. So far, I've
done about 5 passes over the entire disk without error! 

Maybe when you wrote it caused the drive to fix up the bad sector.

Try building the raid5 again?

NeilBrown