Veamos, se trata de un DELL T20 con una controladora LSI en modo HBA con dos conexiones SAS que dan soporte para 8 SATA 3.
Por otra parte la emulacion se trata de un DS3615xs con soporte para 12 discos duros.
Tengo montado un SHR con 5 discos duros de capaciadades:
3 HDD x 4TB
2 HDD x 3TB
Esto me da en el DSM 5.2-5644 --> 13.4TB
Al intentar añadir otro HDD de 3TB me dice que el volumen tiene que ser inferior a 16TB.
Esto es el mapa RAID que me da el mdadm:
md3 : active raid5 sdc6[5] sdb6[7] sde6[6] sdd6[4] sda6[1]
3906971136 blocks super 1.2 level 5, 64k chunk, algorithm 2 [5/5] [uUUUU]
md2 : active raid5 sde5[4] sdb5[7] sdd5[5] sdc5[6] sda5[1]
7795118592 blocks super 1.2 level 5, 64k chunk, algorithm 2 [5/5] [uUUUU]
md4 : active raid5 sdd7[0] sdb7[4] sdc7[2] sde7[3]
2930228352 blocks super 1.2 level 5, 64k chunk, algorithm 2 [4/4] [uUUU]
md1 : active raid1 sda2[0] sdb2[1] sdc2[2] sdd2[3] sde2[4]
2097088 blocks [12/5] [uUUUU_______]
md0 : active raid1 sda1[2] sdb1[4] sdc1[3] sdd1[1] sde1[0]
2490176 blocks [12/5] [uUUUU_______]
Y aqui la informacion de cada uno de ellos:
/dev/md0:
Version : 0.90
Creation Time : Sat Dec 12 17:53:18 2015
Raid Level : raid1
Array Size : 2490176 (2.37 GiB 2.55 GB)
Used Dev Size : 2490176 (2.37 GiB 2.55 GB)
Raid Devices : 12
Total Devices : 5
Preferred Minor : 0
Persistence : Superblock is persistent
Update Time : Mon Dec 28 10:01:24 2015
State : clean, degraded
Active Devices : 5
Working Devices : 5
Failed Devices : 0
Spare Devices : 0
UUID : d7211650:ec22305d:3017a5a8:c86610be
Events : 0.87544
Number Major Minor RaidDevice State
0 8 65 0 active sync /dev/sde1
1 8 49 1 active sync /dev/sdd1
2 8 1 2 active sync /dev/sda1
3 8 33 3 active sync /dev/sdc1
4 8 17 4 active sync /dev/sdb1
5 0 0 5 removed
6 0 0 6 removed
7 0 0 7 removed
8 0 0 8 removed
9 0 0 9 removed
10 0 0 10 removed
11 0 0 11 removed
/dev/md1:
Version : 0.90
Creation Time : Wed Dec 23 22:56:25 2015
Raid Level : raid1
Array Size : 2097088 (2048.28 MiB 2147.42 MB)
Used Dev Size : 2097088 (2048.28 MiB 2147.42 MB)
Raid Devices : 12
Total Devices : 5
Preferred Minor : 1
Persistence : Superblock is persistent
Update Time : Mon Dec 28 09:56:13 2015
State : clean, degraded
Active Devices : 5
Working Devices : 5
Failed Devices : 0
Spare Devices : 0
UUID : 23eeb9d8:ecf46b5b:e8f5bc45:dd5a58c4 (local to host DISKSTATION)
Events : 0.79
Number Major Minor RaidDevice State
0 8 2 0 active sync /dev/sda2
1 8 18 1 active sync /dev/sdb2
2 8 34 2 active sync /dev/sdc2
3 8 50 3 active sync /dev/sdd2
4 8 66 4 active sync /dev/sde2
5 0 0 5 removed
6 0 0 6 removed
7 0 0 7 removed
8 0 0 8 removed
9 0 0 9 removed
10 0 0 10 removed
11 0 0 11 removed
/dev/md2:
Version : 1.2
Creation Time : Sun Aug 11 01:42:34 2013
Raid Level : raid5
Array Size : 7795118592 (7434.00 GiB 7982.20 GB)
Used Dev Size : 1948779648 (1858.50 GiB 1995.55 GB)
Raid Devices : 5
Total Devices : 5
Persistence : Superblock is persistent
Update Time : Mon Dec 28 10:02:12 2015
State : clean
Active Devices : 5
Working Devices : 5
Failed Devices : 0
Spare Devices : 0
Layout : left-symmetric
Chunk Size : 64K
Name : DiskStation:2
UUID : c569f0d2:a5523e99:cc73c298:be34600e
Events : 5660352
Number Major Minor RaidDevice State
4 8 69 0 active sync /dev/sde5
1 8 5 1 active sync /dev/sda5
6 8 37 2 active sync /dev/sdc5
5 8 53 3 active sync /dev/sdd5
7 8 21 4 active sync /dev/sdb5
/dev/md3:
Version : 1.2
Creation Time : Thu Aug 15 14:01:52 2013
Raid Level : raid5
Array Size : 3906971136 (3725.98 GiB 4000.74 GB)
Used Dev Size : 976742784 (931.49 GiB 1000.18 GB)
Raid Devices : 5
Total Devices : 5
Persistence : Superblock is persistent
Update Time : Mon Dec 28 09:59:00 2015
State : clean
Active Devices : 5
Working Devices : 5
Failed Devices : 0
Spare Devices : 0
Layout : left-symmetric
Chunk Size : 64K
Name : DiskStation:3
UUID : 806413a1:4b7a3f8a:0b371434:9ec017fd
Events : 1767708
Number Major Minor RaidDevice State
5 8 38 0 active sync /dev/sdc6
1 8 6 1 active sync /dev/sda6
4 8 54 2 active sync /dev/sdd6
6 8 70 3 active sync /dev/sde6
7 8 22 4 active sync /dev/sdb6
/dev/md4:
Version : 1.2
Creation Time : Thu Dec 11 14:49:18 2014
Raid Level : raid5
Array Size : 2930228352 (2794.48 GiB 3000.55 GB)
Used Dev Size : 976742784 (931.49 GiB 1000.18 GB)
Raid Devices : 4
Total Devices : 4
Persistence : Superblock is persistent
Update Time : Mon Dec 28 10:02:33 2015
State : clean
Active Devices : 4
Working Devices : 4
Failed Devices : 0
Spare Devices : 0
Layout : left-symmetric
Chunk Size : 64K
Name : DiskStation:4
UUID : 8b4d5419:5258bf30:8954894d:2da3238f
Events : 788241
Number Major Minor RaidDevice State
0 8 55 0 active sync /dev/sdd7
3 8 71 1 active sync /dev/sde7
2 8 39 2 active sync /dev/sdc7
4 8 23 3 active sync /dev/sdb7