>Aidan Van Dyk <aidan@xxxxxxxxxxx> wrote: > But, I think that's one of the reasons people usually recommend > putting WAL separate. Even if it's just another partition on the > same (set of) disk(s), you get the benefit of not having to wait > for all the dirty ext3 pages from your whole database FS to be > flushed before the WAL write can complete on it's own FS. [slaps forehead] I've been puzzling about why we're getting timeouts on one of two apparently identical (large) servers. We forgot to move the pg_xlog directory to the separate mount point we created for it on the same RAID. I didn't think to check that until I saw your post. -Kevin -- Sent via pgsql-performance mailing list (pgsql-performance@xxxxxxxxxxxxxx) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-performance