FYI

I tried suspending the replication between site A and site B, then re-issuing the command - same error???

nas_server -vdm VDMSRC99 -setstate mounted
Error 3136: root_fs_vdm_VDMSRC99 is a member of a replication session

Correction - ignore my last post - suspending the replication between site A and site B does allow the VDM to be set to mounted.

If anyone knows whether this has changed from previous versions, I'd be interested to know though. I'm sure I never had to suspend the vdm replica before????

Have started again on this task to fail over a VDM from site A to site B having found "Replicating Celerra CIFS Environments (V1)" document.
Appendix: Performing an administrative failover (page 109) gives the procedure to follow, although again I am struggling to change the VDM state to mounted. The doc says ...
Note: If the VDM state does not change to mounted, disable the interface, set the state to mounted, and then enable the interface.

I tried this with the following command...
server_ifconfig server_2 down

But still couldn't set the VDM to mounted:
nas_server -vdm -setstate mounted
Error 3136: root_fs_vdm_ is a member of a replication session

Any suggestions as to what to do next - suspending the replica did allow me to change to mounted, but then I couldn't failover the vdm!!!

Please help, I can't be the only person with this issue.
Thanks

not stoping the cifs service, but you have already tried to Disable the cifs interface of the VDM.
In order to disable the cifs interface of the VDM you hav to issue a:
server_cifs server_X -Disable interface_name_of_cifs_VDM

Thanks Peter - as I have live file systems on this data mover I cannot stop the cifs service.

Any other suggestions to set the VDM to mounted????

OK, have tried that, but still getting error when trying to set state to mounted????

server_cifs server_2 -Disable interface_name_of cifs_VDM
server_2 : done
nas_server -vdm -setstate mounted
Error 3136: root_fs_vdm_ is a member of a replication session

Disabling a cifs interface is only possible against the physical DM, not against the VDM

Have now tried disabling the CIFS interface, but get this in the event log:

1244466406: SMB: 3:[VDMxxxxx] Error: Command denied on VDM
1244466406: ADMIN: 3:[VDMxxxxx] Command failed: :14 cifs disable