- Posted In
- Red Hat Enterprise Linux
I am looking to see if it is possible to refresh a NFS filesystem without unmounting/remounting the FS
Here is the specifics on what is going on.
In site A, we have a linux configuration with NFS going on it. the SAN disk that this fs is on is replicated to site B. At site B an incremental flashcopy is ran against the target volume. That flashcopy is mounted to the site B linux NFS setup.
what we want to hopefully do, is every 30 minutes, initiate a flashcopy of the target LUN to pick up changes on it and have the Target OS see those changes on that flashcopy lun which is mapped to the host.
Currently we are able to do this, but the changes do not get picked up until an unmount and remount on the target system is performed against the flashcopy lun mounted to it
I am wondering if there is anyway that this can be done without the unmount/remount, and if there is anything that can be done on the target system to sort of pause the NFS during this time so the app doesnt freak out.
This target flashcopy will only ever be read from on the target side.