As soon as smart says there are ANY problem, the disk IS going bad and will have serious problem soon enough. Especially READ DMA errors which mean it reallocate sectors. Consumer level disk try to hide problems as hard as they can until the disk finally fail. Try ddrescue from disk to /dev/null to check for speed, I guess it is slow. Envoyé de mon appareil mobile. Jérôme Poulin Solutions G.A. On 2011-10-08, at 01:52, Валерий <paramonov@xxxxxxxxx> wrote: > So, this IDE drive has non-critical SMART errors listed at end of message by command smartctl --all /dev/sde. It is unclear how this might affect the command dd. -- 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