Hi Paul,
On 10.10.2016 15:06, Paul wrote:
Hi,
I have a guest Windows VM under Redhat and the host is clustered with 2
other Redhat nodes. All three nodes can see a GFS2 SAN SCSI storage device.
The GFS2 file system is mounted on a folder on the 3 RH nodes and is
also set as a shared folder in Virtualbox so all 3+1 machines can now
see the SAN storage.
So my question is about file locking. Does the Windows VM talk to the
SAN file system through the host kernel, if so then I believe the
clustered file locking should work fine, if not then it definitely won't.
Is your question specific to shared folders?
Then the answer is that VirtualBox on Linux doesn't rely on file locking
(as discretionary locking is a notoriously unreliable thing, and
mandatory locking is too unusual). It simply performs the file operations.
Klaus
Thank you for reading
Regards
Paul
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