I have a disabled raid 5 (3 disks) array on a Rocketraid 640. The full sequence of events follows. After the array was shown as degraded, I checked the webgui (under windows 7) which showed hard disk 3 was bad, so changed this hard disk and the rebuild started. After a few hours, I got a loud continuous beep from the system. Upon checking it, I found that hard disk 1 had bad sectors and was offline. At this time, the rebuild showed 85.1% complete. I clicked rescan and it came back on online. At this time, I started copying data from the raid disk to another hard disk which was not on the raid controller. The raid disk had three volumes and I successfully copied the first volume data. It was during data copy from the 2nd volume that hard disk 1 gave bad sector message again and went offline. I clicked rescan, it came online but then hard disk 2 and hard disk 3 went offline and the array became disabled. The 3 disks are still recognized by the controller, but the array shows only the 1st hard disk as part of the array. Can I use mdadm to recover this array or at least to get the 2nd hard disk as online so that I can copy data from it? I dont boot off the array; I have another hard disk for that purpose. I have installed ubuntu 12.04 on this boot hard disk and have loaded the driver for the controller in it. I dont see anyhard disk devices under /dev for it. I only have /dev/sdax which is for my boot hard disk. Thanks. -- 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
