> You should look through your logs to see if you can see what happened to > it. You should also check its SMART status with e.g. > smartctl -a /dev/sde ok thanks :-) My fear is also this: May 19 11:02:47 lorna kernel: [220141.636031] ata9: SATA link up 1.5 Gbps (SStatus 113 SControl 310) May 19 11:02:47 lorna kernel: [220141.708820] ata9.00: configured for UDMA/33 May 19 11:02:47 lorna kernel: [220141.710840] ata9: EH complete May 19 11:03:13 lorna kernel: [220167.526518] ata9: exception Emask 0x10 SAct 0x0 SErr 0x10000 action 0xe frozen May 19 11:03:13 lorna kernel: [220167.528619] ata9: irq_stat 0x00400000, PHY RDY changed May 19 11:03:13 lorna kernel: [220167.530664] ata9: SError: { PHYRdyChg } May 19 11:03:13 lorna kernel: [220167.532735] ata9: hard resetting link May 19 11:03:14 lorna kernel: [220168.263086] EXT4-fs error (device md0): ext4_ext_search_right: bad header/extent i n inode #260441748: invalid extent entries - magic f30a, entries 125, max 340 (340), depth 0(0) May 19 11:03:14 lorna kernel: [220168.464708] EXT4-fs (md0): delayed block allocation failed for inode 260441748 at logical offset 130984 with max blocks 1 with error -5 May 19 11:03:14 lorna kernel: [220168.467005] This should not happen!! Data will be lost this shouldn't happen or no? On raid6 I've only a disk with problem.. or is it a ext4 problem? I use default debian kernel 2.6.32-5-686-bigmem with debian stable. Thanks! Pol -- 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