On Tue, Dec 10, 2024 at 08:05:31AM +0000, Johannes Thumshirn wrote: > > Generally agreeing with all you said, but do we actually have any > > serious use case for cross-LU copies? They just seem incredibly > > complex any not all that useful. > > One use case I can think of is (again) btrfs balance (GC, convert, etc) > on a multi drive filesystem. BUT this use case is something that can > just use the fallback read-write path as it is doing now. Who uses multi-device file systems on multiple LUs of the same SCSI target ơr multiple namespaces on the same nvme subsystem?
