[SOLVED] Function not implemented TASK ERROR: create failed - rbd create

[musangberjanggut]

Hi Guys,

i just upgraded our ceph to jewel for almost 1 month now. today when we try to create new vm using ceph storage we receive below error:

()error writing header: (38) Function not implemented
TASK ERROR: create failed - rbd create vm-101-disk-1' error: error writing header: (38) Function not implemented

Now we cannot create any more VMs on ceph storage. is there any work arround on this? Please advise.

Thanks.

 

[musangberjanggut]

found the solutions. seems like the default features enable for jewel is 61 and for unknown reason all the features fast-diff,deep-flatten and journalin is not able to be activated. it cause the system gives error when try to create the image. You will need to add below to command to your ceph.conf

the only available(so called can be enabled) features in my environment is:
LAYERING = 1
STRIPINGV2 = 2
EXCLUSIVE_LOCK = 4
OBJECT_MAP = 8

the sum of the numeric number for LAYERING, EXCLUSIVE_LOCK, OBJECT_MAP equal to 13.

[client]
rbd_default_features = 13

by having the above config in place, i manage to create a new image and instances