Hello, I am trying to convert my currently running raid 5 array into a raid 1. All the guides I can see online are for the reverse direction in which one is converting/migrating a raid 1 to raid 5. I have intentionally only allocated exactly half of the total raid 5 size is. I would like to create the raid 1 over /dev/sdb1 and /dev/sdc1 with the data on the raid 5 running with the same drives plus /dev/sde1. Is this possible, I wish to have the data redundantly over two hard drive without the parity which is present in raid 5? Thanks for any help in advance :) # mdadm -D /dev/md0 /dev/md0: Version : 1.2 Creation Time : Mon Dec 20 09:48:07 2010 Raid Level : raid5 Array Size : 1953517568 (1863.02 GiB 2000.40 GB) Used Dev Size : 976758784 (931.51 GiB 1000.20 GB) Raid Devices : 3 Total Devices : 3 Persistence : Superblock is persistent Update Time : Tue Aug 23 11:34:00 2011 State : clean Active Devices : 3 Working Devices : 3 Failed Devices : 0 Spare Devices : 0 Layout : left-symmetric Chunk Size : 512K Name : HOST:0 (local to host HOST) UUID : 7d8a7c68:95a230d0:0a8f6e74:4c8f81e9 Events : 55750 Number Major Minor RaidDevice State 0 8 17 0 active sync /dev/sdb1 1 8 33 1 active sync /dev/sdc1 3 8 65 2 active sync /dev/sde1 -M -- 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
