Hi Richardson,
This RDM is created from our storage via FC protocol. I had enabled multi-writer flag on the VMs mounted with this RDM to allow simultaneous write-access to this RDM by referring to the following article.
However, this RDM disk on the VM do not refresh itself real-time when a file is added to this disk. For example, this RDM is mounted as E:\ drive on both VM.
In VM 1, when a file (test1.txt) is added to this RDM, VM 2 RDM (the same E:\) is not seeing this file (test1.txt). This is the same when another file (test2.txt) is added on this RDM in VM2.
VM1 is not able to view this file (test2.txt).
I know I can configure NFS as a mapped network drive for both VM to access and have its information updated real-time.
We are looking at this setup as my application team request a shared disk to be presented to both VMs with read-write access.