On Sun, Jan 22, 2012 at 1:34 PM, Keith Keller < kkeller at wombat.san-francisco.ca.us> wrote: > On 2012-01-22, Boris Epstein <borepstein at gmail.com> wrote: > > > > Also, here's somethine else I have discovered. Apparently there is an > > potential intermittent RAID disk trouble. At least I found the following > in > > the system log: > > > > Jan 22 09:17:53 nrims-bs kernel: 3w-9xxx: scsi6: AEN: ERROR > (0x04:0x0026): > > Drive ECC error reported:port=4, unit=0. > > Jan 22 09:17:53 nrims-bs kernel: 3w-9xxx: scsi6: AEN: ERROR > (0x04:0x002D): > > Source drive error occurred:port=4, unit=0. > > Which 3ware controller is this? I have had lots of problems with the > 3ware 9550SX controller and WD-EA[RD]S drives in a similar > configuration. (Yes, I know all about the EARS drives, but they work > mostly fine with the 3ware 9650 controller, so I suspect some weird > interaction between the cheap drives and the old not-so-great > controller. I also suspect an intermittently failing port, which I'll > be testing more later this week.) > > > Jan 22 09:55:23 nrims-bs kernel: 3w-9xxx: scsi6: AEN: WARNING > > (0x04:0x000F): SMART threshold exceeded:port=9. > > Jan 22 09:55:23 nrims-bs kernel: 3w-9xxx: scsi6: AEN: WARNING > > (0x04:0x000F): SMART threshold exceeded:port=9. > > Jan 22 09:56:17 nrims-bs kernel: 3w-9xxx: scsi6: AEN: INFO (0x04:0x000B): > > Rebuild started:unit=0. > > What does your RAID look like? Are you using the 3ware's RAID6 (in > which case it's not a 9550) or mdraid? Are the 3ware errors in the logs > across a large number of ports or just a few? Have you used the drive > tester for your drives to verify that they're still good? On all my > other systems, when the controller has reported a failure, and I've run > it through the tester, it's reported a failure. (Often when my 9550 > reports a failure the drive passes all tests.) > > If you happen to have real RAID drive models, you may also try > contacting LSI support. They will steadfastly refuse to help if you > have desktop-edition drives, but can be at least somewhat helpful if you > have enterprise drives. > > --keith > > > -- > kkeller at wombat.san-francisco.ca.us > > > > Keith, thanks! The RAID is on the controller level. Yes, I believe the controller is a 3Ware 9xxx series - I don't recall the details right now. What are you referring to as "drive tester"? Boris.