repeated failure on same disk

Could well be a bad drive bay.

What version of RAIDiator and what brand and model disk(s) have failed?

When did you purchase the NV? Was it purchased brand new on/after Aug 21, 2007?

The NV is running radiator version 4.1.8. Disks are Seagate Barracuda 7200.12 1TB. The unit was purchased in July 2006.

Could you power down the NAS, remove the side panels and check the unit for dust. An excessive build up of dust could cause issues. Cleaning out dust may help.

Found a little dust, not much cleaned it out.

Still indicating that disk 2 fails the smart assessment

Can you test the drive with vendor tools on your PC?

That is a good point. It could just be a bad run with failing drives just happening to be in the same slot. Checking the drive using SeaTools would be a good idea. If you still have the drives that failed earlier checking them as well would also be a good idea.

The short generic Seatools test indicates that the drive passed. I am in the process of running the long generic test.

Might be worth running the SMART test. Also, look at the SMART parameters - vendor thresholds for pass/fail on reallocated sectors are higher than I'd like. BTW, I have never had Seagate or Western Digital question one of my returns.

Both drives flagged as having excessive reallocated sectors passed the seatools long generic tests. I am connecting the disks to be tested to my desktop using a usb-sata connection and Smart test is not one of the available tests. I have installed yet another new disk into bay 2 and after 2 days the reallocated sector count remains at 0. Is it possible to somehow reinitialize the disks that passed for reinstallation into the readynas?

Thanks for your assistance.