configure celerra backup to datadomain

i need to configure celerra to backup filesystems to datadomain over FC. We are using netbackup

i have zoned DD to celerra created drives and can see them.

server_2 :

               Scsi Device Table

name                addr         type  info

tape1               c416t0l0     tape  IBM ULTRIUM-TD3 8711

ttape2              c416t0l1     tape  IBM ULTRIUM-TD3 8711

ttape3              c416t0l2     tape  IBM ULTRIUM-TD3 8711

ttape4              c416t0l3     tape  IBM ULTRIUM-TD3 8711

ttape5              c416t0l4     tape  IBM ULTRIUM-TD3 8711

tape6               c416t0l5     tape  IBM ULTRIUM-TD3 8711

tape7               c416t0l6     tape  IBM ULTRIUM-TD3 8711

tape8               c416t0l7     tape  IBM ULTRIUM-TD3 8711

tape9               c416t0l8     tape  IBM ULTRIUM-TD3 8711

tape10              c416t0l9     tape  IBM ULTRIUM-TD3 8711

tape11              c416t0l10    tape  IBM ULTRIUM-TD3 8711

tape12              c416t0l11    tape  IBM ULTRIUM-TD3 8711

tape13              c416t0l12    tape  IBM ULTRIUM-TD3 8711

tape14              c416t0l13    tape  IBM ULTRIUM-TD3 8711

tape15              c416t0l14    tape  IBM ULTRIUM-TD3 8711

tape16              c416t0l15    tape  IBM ULTRIUM-TD3 8711

gk01                c0t0l15      disk  577389D13411SI000190105489

tape4               c96t0l4      tape  IBM ULTRIUM-TD4 A239

tape5               c96t0l5      tape  IBM ULTRIUM-TD4 B7C0

jbox1               c96t0l1      jbox  ADIC Scalar i2000 595A

tape2               c96t0l2      tape  IBM ULTRIUM-TD4 A239

tape3               c96t0l3      tape  IBM ULTRIUM-TD4 A239

gk161               c16t0l15     disk  577389D13401SI000190105489

jbox17              c416t1l0     jbox  STK L180 0306

Then i create vtlu:

$ server_vtlu server_2 -tlu -list

server_2 :

id    vendor     product    revision   serial_number     device_name

2     EMC        svtlRobot  1.01       ET6D8492k5        c0t0l0

Add storage:

$ server_vtlu server_2 -storage -new dd2_vtlu_fs -tlu 2

$server_2 : done

$server_vtlu server_2 -tlu -list

server_2 :

id    vendor     product    revision   serial_number     device_name

2     EMC        svtlRobot  1.01       ET6D8492k5        c0t0l0

Then check drives:

$server_vtlu server_2 -drive -list 2

server_2 :

drive_id  device_name   serial_number  status    tape_barcode

0         c0t0l1        CIpXkIC000     empty

1         c0t0l2        SeO5mIC000     empty

2         c0t0l3        8LcenIC000     empty

3         c0t0l4        ohBmoIC000     empty

Check tapes:

$server_vtlu server_2 -tape -list 2

server_2 :

barcode       filesystem     capacity(GB)   location     source_slot

0D3D0000      dd2_vtlu_fs    50             slot:0

Obviously something does not click here, has anyone any suggestions here?