Upon review I suppose it is using ZFS, though there's no mirror or stripe going on for the pool, just a single large virtual disk.... Come to think of it I remember now I had to disable write sync in the VM and set the disk image in proxmox to "write back" to get decent write performance to TrueNAS in this implementation. It's been about a year since I configured that so had completely forgotten. Either way, with those adjustments it works pretty well, but I wonder if there's room for improvement with a "stripe" of virtual disks on separate threads? hmmmm... tbd...
With that said, Ceph is agnostic to what the VM does with the virtual disk. Data is data. You could encrypt the entire contents of the disk and ceph would not know any difference and would still perform scrub operations just the same looking for data integrity issues. Data that doesn't match across replications is discovered and can be repaired either way.
With that said, Ceph is agnostic to what the VM does with the virtual disk. Data is data. You could encrypt the entire contents of the disk and ceph would not know any difference and would still perform scrub operations just the same looking for data integrity issues. Data that doesn't match across replications is discovered and can be repaired either way.