mdadm - JBOD Failed to assemble after middle device Failed

Ive got an Problem with my JBOD, after my Synology DS died because of the failure of the Boot-HDD, ive wanted to recover my JBOD (3x3TB). Ive Started an Debian-Live to mount and save the data from my Jbod, that worked well.

I Ordered an 8Tb drive from amazon to save the data, but as i started the Rsync Job the middle Device (sdb) got i/o errors...

My Fault was to think a reboot would help because of an unhandled Kernel error...
Ye, dumb me, the middle Disk died.

My Problem now:
Ive got the first and the last device working but mdadm said:

root@debian:~# mdadm --assemble --force /dev/md3 /dev/sd[bc]3

mdadm: /dev/md3 assembled from 2 drives - not enough to start the array.

---

Thats the Drives:

root@debian:/# mdadm --examine /dev/sd[abc]3
/dev/sdb3:

      Magic : a92b4efc

    Version : 1.2


Feature Map : 0x0

 Array UUID : e8937ad2:c0080cf8:6e96733a:2a3b4ee8

       Name : LG-NAS:3

Creation Time : Sat Feb 25 20:08:20 2017

 Raid Level : linear

Raid Devices : 3

Avail Dev Size : 5850889088 (2789.92 GiB 2995.66 GB)

Used Dev Size : 0

Data Offset : 2048 sectors

Super Offset : 8 sectors

Unused Space : before=1968 sectors, after=32 sectors

      State : clean

Device UUID : baa0a4e4:9bc55ee7:6e6d27ea:fe158da8


Update Time : Thu Mar  9 15:20:28 2017
   Checksum : 84051d55 - correct
     Events : 1
   Rounding : 64K

Device Role : Active device 0
Array State : AAA ('A' == active, '.' == missing, 'R' == replacing)

---

/dev/sdc3:

      Magic : a92b4efc

    Version : 1.2

Feature Map : 0x0

 Array UUID : e8937ad2:c0080cf8:6e96733a:2a3b4ee8


       Name : LG-NAS:3

Creation Time : Sat Feb 25 20:08:20 2017

 Raid Level : linear

Raid Devices : 3

Avail Dev Size : 5850889088 (2789.92 GiB 2995.66 GB)

Used Dev Size : 0

Data Offset : 2048 sectors

Super Offset : 8 sectors

Unused Space : before=1968 sectors, after=32 sectors

      State : clean

Device UUID : 0b4313db:8989392c:870a02d2:910a8eb5


Update Time : Thu Mar  9 15:20:28 2017

   Checksum : b42b1540 - correct


     Events : 1

   Rounding : 64K

Device Role : Active device 2
Array State : AAA ('A' == active, '.' == missing, 'R' == replacing)

root@debian:/# fdisk -l /dev/sd[abc]3

Disk /dev/sdb3: 2.7 TiB, 2995656278016 bytes, 5850891168 sectors

Units: sectors of 1 * 512 = 512 bytes

Sector size (logical/physical): 512 bytes / 4096 bytes

I/O size (minimum/optimal): 4096 bytes / 4096 bytes

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Disk /dev/sdc3: 2.7 TiB, 2995656278016 bytes, 5850891168 sectors

Units: sectors of 1 * 512 = 512 bytes

Sector size (logical/physical): 512 bytes / 4096 bytes

I/O size (minimum/optimal): 4096 bytes / 4096 bytes

root@debian:/# mdadm --examine --scan

ARRAY /dev/md/3 metadata=1.2 UUID=e8937ad2:c0080cf8:6e96733a:2a3b4ee8 name=LG-NAS:3

My Last Idea now, to recreate the JBOD using the Following command:

mdadm --create --verbose /dev/md3 --name=LG-NAS:3 --metadata=1.2 --level=linear --raid-devices=3 /dev/sdb3 missing /dev/sdc3

Or

mdadm --create --verbose /dev/md3 --name=LG-NAS:3 --metadata=1.2 --level=linear --raid-devices=2 /dev/sdb3 /dev/sdc3

Any suggestions what to do next?