RAID 6 recovery after delete

[electronicman]

Hi all!

This morning i found that our QNAP TS-1269U-RP not share netfork folder
I go to web admin, but password not match.
I was able to login at admin/admin

Logs from QNAP:
[Power Managment] System restarting now
System reset to default settings
[RAID6 Disk Volume Host Drive: 1 2 3 4 5 6 7 8 9 10 11 12] Removal completed.
[RAID6 Disk Volume Host Drive: 1 2 3 4 5 6 7 8 9 10 11 12] Removal completed.
[RAID6 Disk Volume Host Drive: 1 2 3 4 5 6 7 8 9 10 11 12] Start removal.
[RAID6 Disk Volume Host Drive: 1 2 3 4 5 6 7 8 9 10 11 12] Start removal.
[Home Folders] Disabled
[Utilization History] Clear Volume 1 history records

df-h:
Filesystem Size Used Available Use% Mounted on
/dev/ram0 151.1M 126.7M 24.4M 84% /
devtmpfs 992.1M 4.0k 992.1M 0% /dev
tmpfs 64.0M 192.0k 63.8M 0% /tmp
tmpfs 996.9M 0 996.9M 0% /dev/shm
/dev/md9 509.5M 140.2M 369.2M 28% /mnt/HDA_ROOT
/dev/md13 371.0M 282.0M 89.0M 76% /mnt/ext
tmpfs 32.0M 0 32.0M 0% /.eaccelerator.tmp


[~] # cat /proc/mdstat
Personalities : [linear] [raid0] [raid1] [raid10] [raid6] [raid5] [raid4] [multipath]
md256 : active raid1 sdh2[11](S) sdg2[10](S) sdf2[9](S) sde2[8](S) sdl2[7](S) sdk2[6](S) sdj2[5](S) sdi2[4](S) sdd2[3](S) sdc2[2](S) sdb2[1] sda2[0]
530112 blocks super 1.0 [2/2] [UU]
bitmap: 0/1 pages [0KB], 65536KB chunk

md13 : active raid1 sda4[0] sdg4[11] sdh4[10] sdf4[9] sde4[8] sdl4[7] sdk4[6] sdj4[5] sdi4[4] sdd4[3] sdc4[2] sdb4[1]
458880 blocks [12/12] [UUUUUUUUUUUU]
bitmap: 0/57 pages [0KB], 4KB chunk

md9 : active raid1 sda1[0] sdh1[11] sdg1[10] sdf1[9] sde1[8] sdl1[7] sdk1[6] sdj1[5] sdi1[4] sdd1[3] sdc1[2] sdb1[1]
530048 blocks [12/12] [UUUUUUUUUUUU]
bitmap: 1/65 pages [4KB], 4KB chunk

How recover Raid?