Hi team , Like probably lot of new subscriber , i mail you, guys, for help . I¹m running a raid5 on 7 HDD for several month now ( and years on other system) without problem . last week i had a crash disk (sdg) , i¹ve add a new drive (sdi) and rebuild .. Works fine , and i dont think this is the cause of my today problem. Yesterday , i¹v upgraded my ubuntu 14.10 , and the system warm me with a message that i can¹t recall and rewrite exactly , but something like : md127 doesn¹t not match with /etc/mdadm/mdadm.conf , blah blah , run /usr/share/mdadm/mkconf , and fix /etc/mdadm/mdadm.conf i¹ve done it , and reboot , all looks good . All the drive have been rename after reboot ( orginal sdg was extract form the bay ) I¹ve setup a rsync of my most important data on a external drive this night, who partially failed (only 25% ha been backuped , bad luck ) , (probably) because this morning i have re-inserted by mistake the faulty drive ( for information , i think the drive was in fact ok , the sata connector was a bit disconnect ) I did not pay attention of the situation at the moment , but few hour later , i ssh my filer and my « home » (on the raid partition) was not available anymore . I didn¹t try to fschk or any thing else than : Mdadm ?stop /dev/md127 mdadm --assemble /dev/md127 /dev/sdb /dev/sdc /dev/sdd /dev/sde /dev/sdf /dev/sdg /dev/sdh mdadm: /dev/md127 assembled from 5 drives - not enough to start the array. So i¹ve read a bunch of usefull link , one of them :) , https://raid.wiki.kernel.org/index.php/RAID_Recovery , says , don¹t do stupid thing until drop a mail on linux-raid mailling ? so i¹m here . i¹ve collected this usefull info : mdadm --examine /dev/sd[a-z] | egrep 'Event|/dev/sd' /dev/sda: (system HDD ) /dev/sdb: Events : 21958 /dev/sdc: Events : 21958 /dev/sdd: Events : 21958 /dev/sde: Events : 21958 /dev/sdf: Events : 21958 /dev/sdg: Events : 21954 <? here /dev/sdh: Events : 21954 <? and here i¹ve also a full copy of mdadm ?examine The strange thing is that my raid array is now seen as a RAID0 in mdadm --detail /dev/md127 /dev/md127: Version : Raid Level : raid0 Total Devices : 0 State : inactive But individually all drive in mdadm ?examine , are RAID 5 member . Anyone for help ? i¹ was on the way to perform a mdadm --create --assume-clean ?level=5 --raid-devices=7 --size=11720300544 /dev/md127 /dev/sdb /dev/sdc /dev/sdd /dev/sde /dev/sdf /dev/sdg /dev/sdh Which looks a bit stupid before ask for help Regards thomas -- 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
