Hi guys, i have an external USB enclosure with 4 disks in RAID5 mode using mdadm. I dont know exactly why but if i use this disks for massive I/O for lots of hours (over 12 hours), linux usually eject some or all disks (causing a faulty in the raid) and remaps them: sdb -> sdf , sdc -> sdg , sdd -> sdh , sde -> sdi Well , this was never exactly a problem because most of the time those disks are idle (just backup), but i had a real disk failure and i will replace the disk. But probably the rebuild process will take a lot more than 12 hours so the chances are that some disk will be ejected and i will be in a trouble situation where a raid5 rebuilding process will probably be stopped by an apparently failure. So my question is: If i get into that situation , will i be able to disassemble and reassemble the disk using the three disks i know are 'fine' and restart the rebuild process from where it stopped ? I have internal bitmap enabled. Is it possible to somehow freeze the rebuild process ? So i could pause the process for a few hours after 8 hours of work for example. The raid will be assembled but umounted during the rebuild proccess. I am using kernel 3.2.30. Thanks !!! []'s Salatiel -- 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