Thanks for you quick respond Neil ;) > mdadm -A --force /dev/md2 /dev/sd[a-f] So, i type this command : # mdadm -A --force /dev/md2 /dev/sd[a-h] mdadm: /dev/md2 has been started with 7 drives. ( i do a [a-h] , because i have 8 scsi disk ) I try too mount md2, it work fine, but : # ls -al ls: nohup.out: Input/output error ls: tape.sh: Input/output error ls: .viminfo: Input/output error ls: .bash_history: Input/output error ls: .bashrc~: Input/output error ls: .xauth: Input/output error It seem that there is many errors on the partition. So, in good newbie, i decided too reboot the machine, but now and since one hour, he is blocking on these lines : [...] md: updating md2 RAID superblock device md: sdg [events: 000005a]<6>write sdg's sb offset 35843584 md: sdh [events: 000005a]<6>write sdh's sb offset 35843584 md: sde [events: 000005a]<6>write sde's sb offset 35843584 md: sdd [events: 000005a]<6>write sdd's sb offset 35843584 But, there is disk activity on the first one. It's normal ? does RAID reconsctruct itsef ? if so , why did not he say that he is doing it ? Nicolas - To unsubscribe from this list: send the line "unsubscribe linux-raid" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html