Does anybody here have any recommendations for using PostgreSQL 9.4 (latest) with ZFS? We've been running both on ZFS/CentOS 6 with excellent results, and are considering putting the two together. In particular, the CoW nature (and subsequent fragmentation/thrashing) of ZFS becomes largely irrelevant on SSDs; the very act of wear leveling on an SSD is itself a form of intentional thrashing that doesn't affect performance since SSDs have no meaningful seek time. It would seem that PGCon 2013 even had a workshop on it! https://www.pgcon.org/2013/schedule/events/612.en.html The exact configuration we're contemplating is either (3x 400 RAIDZ1) or (4x 400 RAIDZ2) with Intel Enterprise SATA3 SSDs, with default (lz4) compression enabled. If this is a particularly good or bad idea, I'd like to hear it, and why? Thanks, BenP -- Sent via pgsql-general mailing list (pgsql-general@xxxxxxxxxxxxxx) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-general
