On 3. 10. 2022, at 2:13, jstk888@gmail.com wrote:

Hello,

I was asked the other day what file system oVirt uses to store virtual machine images and how it differed from VMware VMFS. I had to admit that I didn't quite understand this aspect of oVirt. I've had a look around but haven't found an answer. I was wondering if someone could explain at a high level, how the underlying oVirt VM storage domain differs from VMFS? What file system is used? Does it use a file system at all?

oVirt supports three types of storage file-based where there are ordinary files on a posix filesystem, NFS, etc.. block storage domains are using LVM volumes for disks, there's no filesystem, VM disks are LVs. managed domains - storage operations are offloaded to Cinderlib with Ceph backend. Thanks, michal

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