search for: filestystems

Good day - Is there a way of safely allowing a guest OS to access a disk storage device that is also mounted at the same time by the hypervisor or another guest ? I have Linux LVM volumes containing ext4 and btrfs filestystems that need to be shared between the hypervisor and the guests, and between guests . Attempts to use NFS are too slow to be useable - it takes a guest around 4 hours to uncompress and extract a 10MB tar file (using 4 2.9GHz cores). I need access to the shared file system at all times to use as my...