Anyone seen this

na03*> snap restore -t vol -s hourly.1 publicweb

Volume publicweb will be made restricted briefly before coming back online.

Are you sure you want to do this? y

You have selected volume publicweb, snapshot hourly.1

Proceed with revert? y
Volume publicweb may not be remounted because of 1 open file:
The sm_recover_main process has 1 file open :
    /vol/publicweb/etc/sm/notify
snap restore: Volume is in use by other operations. (public web).



We cancelled & deleted all related snap mirrors on the volume and and moved the /etc/sm/notify file out of the way and
still could not execute the snap restore - any idea why?

this is Ontap 8.1

thanks