On Tue Mar 5 01:03:23 EST 2013, [email protected] wrote: > Hello, > > It seems my cwfs has too many dirty blocks. > cfws command ("dump", "check tag" and etc) is no help to decrease these > blocks. > is this only to me?
i have not seen this with kenfs. is it possible that you are using the "t" bit that 9front added? if so, that would explain all the dirty blocks that never get dumped. one also ends up with dirty superblocks that can't get dumped because they're already written, about 1 per day in the dump. one thing i notice about your cache-worm is that the cache is very large. this is not advisable because your cache buckets will take up too many memory buffers, leaving little for actual data. 20G cache has been enough. the first big file server i set up had 750G cache, and it thrashed the heck out of its disks. - erik
