On Wed, 25 Jun 2014 06:43:01 -0400 "Rodney D. Myers" <rod_my...@fastmail.fm> wrote:
> I've made sure the 500G drive is the first in the external box. And
> excluded it in the array.
>
> I've started creating a new array using the following;
>
> /sbin/mdadm --create --verbose /dev/md0 --level=5
> --raid-devices=3 /dev/sdc1 /dev/sdd1 /dev/sde1 mdadm: layout defaults
> to left-symmetric mdadm: layout defaults to left-symmetric
> mdadm: chunk size defaults to 512K
> mdadm: size set to 976630272K
> mdadm: automatically enabling write-intent bitmap on large array
> mdadm: Defaulting to version 1.2 metadata
> mdadm: array /dev/md0 started.
>
> and formatted to ext4;
>
> mkfs.ext4 /dev/md0
> mke2fs 1.42.10 (18-May-2014)
> Creating filesystem with 488315136 4k blocks and 122085376 inodes
> Filesystem UUID: f676c6bd-bcb4-4ccc-b2c4-77c7a1aff44c
> Superblock backups stored on blocks:
> 32768, 98304, 163840, 229376, 294912, 819200, 884736, 1605632,
> 2654208, 4096000, 7962624, 11239424, 20480000, 23887872, 71663616,
> 78675968, 102400000, 214990848
>
> Allocating group tables: done
> Writing inode tables: done
> Creating journal (32768 blocks): done
> Writing superblocks and filesystem accounting information: done
>
> I'm hoping to simplify the setup by removing the smaller driver
>
Well 2 hours later, failed;
/sbin/mdadm --detail /dev/md0
/dev/md0:
Version : 1.2
Creation Time : Wed Jun 25 06:37:06 2014
Raid Level : raid5
Array Size : 1953260544 (1862.77 GiB 2000.14 GB)
Used Dev Size : 976630272 (931.39 GiB 1000.07 GB)
Raid Devices : 3
Total Devices : 3
Persistence : Superblock is persistent
Intent Bitmap : Internal
Update Time : Wed Jun 25 08:04:45 2014
State : active, FAILED
Active Devices : 0
Failed Devices : 3
Spare Devices : 0
Layout : left-symmetric
Chunk Size : 512K
Number Major Minor RaidDevice State
0 0 0 0 removed
2 0 0 2 removed
4 0 0 4 removed
0 8 33 - faulty /dev/sdc1
1 8 49 - faulty /dev/sdd1
3 8 65 - faulty /dev/sde1
cat /proc/mdstat
Personalities : [raid6] [raid5] [raid4]
md0 : active raid5 sde1[3](F) sdd1[1](F) sdc1[0](F)
1953260544 blocks super 1.2 level 5, 512k chunk, algorithm 2
[3/0] [___] bitmap: 0/8 pages [0KB], 65536KB chunk
unused devices: <none>
--
Rodney D. Myers <rod_dmy...@fastmail.fm>
They that can give up essential liberty to obtain a
little temporary safety deserve neither liberty nor safety.
Ben Franklin - 1759
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