Re: image map failed

[Rakesh Parkiti <rakeshparkiti@xxxxxxxxxxx>]

Hi Ishmael

Once try to create image with image-feature as layering only.

#rbd create --image pool-name/image-name --size 15G --mage-feature layering
# rbd map  --image pool-name/image-name

Thanks
Rakesh Parkiti

On Jun 23, 2016 19:46, Ishmael Tsoaela <ishmaelt3@xxxxxxxxx> wrote:

Hi All,

I  have created an image but cannot map the image, anybody know what could be the problem:

sudo rbd map data/data_01

rbd: sysfs write failed

RBD image feature set mismatch. You can disable features unsupported by the kernel with "rbd feature disable".

In some cases useful info is found in syslog - try "dmesg | tail" or so.

rbd: map failed: (6) No such device or address

cluster_master@nodeC:~$ dmesg |tail

[89572.831725] libceph: client4227 fsid 70cc6b75-9f83-4c67-a1c4-4fe846b4849e

[89572.832413] libceph: mon0 155.232.195.4:6789 session established

[89573.042375] libceph: client4229 fsid 70cc6b75-9f83-4c67-a1c4-4fe846b4849e

[89573.043046] libceph: mon0 155.232.195.4:6789 session established

command to create image:

rbd create data_01 --size 102400 --pool data

cluster_master@nodeC:~$ rbd ls data

data_01

cluster_master@nodeC:~$ rbd --image data_01 -p data info

rbd image 'data_01':

size 102400 MB in 25600 objects

order 22 (4096 kB objects)

block_name_prefix: rbd_data.105f2ae8944a

format: 2

features: layering, exclusive-lock, object-map, fast-diff, deep-flatten

flags: 

cluster_master@nodeC:~$ ceph status

    cluster 70cc6b75-9f83-4c67-a1c4-4fe846b4849e

     health HEALTH_OK

     monmap e1: 1 mons at {nodeB=155.232.195.4:6789/0}

            election epoch 3, quorum 0 nodeB

     osdmap e17: 2 osds: 2 up, 2 in

            flags sortbitwise

      pgmap v160: 192 pgs, 2 pools, 6454 bytes data, 5 objects

            10311 MB used, 1851 GB / 1861 GB avail

                 192 active+clean

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