On Mar 20, 2013, at 2:09 AM, Andris Berzins <pkix@xxxxxxxx> wrote: > Hello, > > I am running RAID5 array on 6x 3TB WD SATA disks. > I have problems with all of these disks (including replaced one). > Disks are being randomly kicked out from array and SMART shows > pending sectors which usually can be fixed by read-write or write to that sector. Have you changed the /sys/block/sdX/device/timeout value? Cat it, report the value. For the greens I think the value needs to be at least 125 seconds. Depend on your SATA controller, it may have a separate timeout value that also needs to be changed. If a potential "hang" delay of 125 seconds isn't workable for your application, you'll need different drives. > Has anyone experienced something similar with WD green series? > Is this because of WD "green" series? Yes, the mail list achive is full of such posts. > Anyone running raid on 3TB SATA drives can suggest model disk that > runs without problems? Hitachi Deskstar reportedly still support configurable SCT ERC, so you get set the drive to fail much less than 30 seconds, e.g. 7 seconds. Then md will fix the problems, if they're encountered. These drives are offered in 4TB size also. Chris Murphy-- 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
