Please, noob needs help for raid 5 problem

Hello out there,

Running OMV 2.1.6. My Raid5 is gone. First i had a raid clean/degraded message by e-mail. that was about /dev/sdg that was faulty.
So i wanted to replace this disk with a new one. I had at first the next devices /dev/sda, /dev/sdc, /dev/sdd, /dev/sde, /dev/sdf and /dev/sdg together forming md127

Now devicenames are mixed up /dev/sda is ok but then /dev/sdc is now /dev/sdb! and so on for the next devices?!
I didn't replace a disk jet!

Via cat /proc/mdstat i see i have 2 personalities?

"root@OMV:~# cat /proc/mdstat
Personalities : [raid6] [raid5] [raid4]
md126 : inactive sda[3](S)
1953383512 blocks super 1.2

md127 : inactive sdb[0] sdd[2] sdc[1]
2929894536 blocks super 1.2

unused devices: <none>"
So i want to get them all in md127 and names as /dev/sda, /dev/sdc, /dev/sdd, /dev/sde, /dev/sdf to rebuild my raid.
Can i somehow rename /dev/sdc to /dev/sdd and so on in reverse order to get my devicenames the same as it was?

In GUI i cab see in storage my dics but in raid management there's nothing.
I hope i can somehow rebuild or rescue my raid with your help?

Thanx in advance.

John

root@OMV:~# fdisk -l

Disk /dev/sda: 2000.4 GB, 2000398934016 bytes
255 heads, 63 sectors/track, 243201 cylinders, total 3907029168 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
Disk identifier: 0x00000000

Disk /dev/sda doesn't contain a valid partition table

Disk /dev/sdb: 1000.2 GB, 1000204886016 bytes
255 heads, 63 sectors/track, 121601 cylinders, total 1953525168 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
Disk identifier: 0x00000000

Disk /dev/sdb doesn't contain a valid partition table

Disk /dev/sdd: 1000.2 GB, 1000204886016 bytes
255 heads, 63 sectors/track, 121601 cylinders, total 1953525168 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
Disk identifier: 0x00000000

Disk /dev/sdd doesn't contain a valid partition table

Disk /dev/sde: 160.0 GB, 160041885696 bytes
255 heads, 63 sectors/track, 19457 cylinders, total 312581808 sectors
Units = sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk identifier: 0x000d4e88

Device Boot Start End Blocks Id System
/dev/sde1 * 2048 299839487 149918720 83 Linux
/dev/sde2 299841534 312580095 6369281 5 Extended
/dev/sde5 299841536 312580095 6369280 82 Linux swap / Solaris

Disk /dev/sdc: 1000.2 GB, 1000204886016 bytes
255 heads, 63 sectors/track, 121601 cylinders, total 1953525168 sectors
Units = sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk identifier: 0x00000000

Disk /dev/sdc doesn't contain a valid partition table

Disk /dev/sdf: 2000.4 GB, 2000398934016 bytes
255 heads, 63 sectors/track, 243201 cylinders, total 3907029168 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
Disk identifier: 0x00000000

Disk /dev/sdf doesn't contain a valid partition table

mdadm --assemble /dev/md127 /dev/sd[acdef] --verbose --force

Gave me this output:

mdadm: looking for devices for /dev/md127
mdadm: no RAID superblock on /dev/sde
mdadm: /dev/sde has no superblock - assembly aborted

Thanx in advance Ryecoaaron

Great!! Thanks to ryecoaaron and br41n. You did it! E was the system drive!
The RAID 5 is working again and as it seems right now, i lost no data!

I thank you both very much!

greets John