> Hi! > > If I understand mount(8) (http://man.openbsd.org/mount) right, FFS > mounts have a metadata I/O mode and a data I/O mode. By default, > metadata is accessed synchronously and data is accessed > asynchronously. > > "-o sync" will force both to synchronous mode, and "-o softdep" would > change the metadata I/O mode to the alternative softdep access mode.
No. softdep and async are different concepts. Default: metadata, data accordingly: sync, async not that there is async - not softdep You can do the oposite by options: nosync, noasync It would mean asynchronous mode for metadata and synchronous for data - which is stupid (slow and dangerous), so don't. I think default are quite good for SSD. Maybe add noatime for some partitions.
