Hi Robert, On 09/15/2013 04:42 PM, Robert Schultz wrote: > Phil: > > Thank you for the information. This is my backup machine. Up to this > point I wasn't concerned about having a second copy of this machine, but > I have a tendency to decommission a computer and leave the backups on by > backuppc for archive purposes. I probably don't really, really need > anything on this PC. That said I'm am very paranoid that I will have > some other failure before I can resolve this :-( > > I hadn't read anything about timing in disks in RAID - I'll have to go > do some research. I see WD has their RED series that appears to be > directed to this market. Please do read the archives on the topic. You won't regret it. And yes, the WD REDs power up with SCTERC set properly. I bought four of these for my new media server. > Here is the information requested. Please let me know if this changes > anything in your instructions. I'll hold off until you confirm. One modest change. Two of your drives *do* support SCTERC, they just have to have it enabled on every powerup: > SCT Error Recovery Control: > Read: Disabled > Write: Disabled For those two drives, your boot sequence should have: smartctl -l scterc,70,70 /dev/sdX For the other, you still need: echo 180 >/sys/block/sdX/device/timeout Otherwise, my recommendations stand. Phil -- To unsubscribe from this list: send the line "unsubscribe linux-raid" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
