Double-mounting of RBD

["McNamara, Bradley" <Bradley.McNamara@xxxxxxxxxxx>]

I have a somewhat interesting scenario.  I have an RBD of 17TB formatted using XFS.  I would like it accessible from two different hosts, one mapped/mounted read-only, and one mapped/mounted as read-write.  Both are shared using Samba 4.x.  One Samba server gives read-only access to the world for the data.  The other gives read-write access to a very limited set of users who occasionally need to add data.

However, when testing this, when changes are made to the read-write Samba server the changes don’t seem to be seen by the read-only Samba server.  Is there some file system caching going on that will eventually be flushed?

 

Am I living dangerously doing what I have set up?  I thought I would avoid most/all potential file system corruption by making sure there is only one read-write access method.  Thanks for any answers.

Brad

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