> Paul Brook wrote: > > cache=none: > > No host caching. Reads and writes both go directly to underlying > > storage. > > > > Useful to avoid double-caching. > > > > cache=writethrough > > > > Reads are cached. Writes go directly to underlying storage. Useful for > > broken guests that aren't aware of drive caches. > > These are misleading descriptions - because cache=none does not push > writes down to powerfail-safe storage, while cache=writethrough might.
If so, then this is a serious bug. Paul
