http://www.math.uni-bonn.de/people/ef/dotcache/ has a typo in the first subheading "Dotache" :)
On 24 September 2013 13:38, Edgar Fuß <[email protected]> wrote: >> We want fsync to do a disk sync, and client are unlikely to be fixable. > In my case, the culprit was SQLite used by browsers and dropbox. > As these were not fixable, I ended up writing a system that re-directs these > SQLite files to local storage > (http://www.math.uni-bonn.de/people/ef/dotcache). > >> RMW? > Read-Modify-Write. > On a RAID 4/5, writing anything that's not an entire stripe needs either to > read the rest of the stripe (to be able to compute the new parity) before > writing the modified part and the parity; or it (if you modify less than half > the stripe) reads both the old data and old parity to compute the new parity. > You don't have that on RAID 1, of course.
