Jim Mauro wrote: > You have SSD's for the ZIL (logzilla) enabled, and ZIL IO > is what is hurting your performance...Hmmm.... > > I'll ask the stupid question (just to get it out of the way) - is > it possible that the logzilla is undersized? > > Did you gather data using Richard Elling's zilstat (included below)? >
Jim stole a little bit of my thunder :-) To get him back, I've now blogged about my updated (better) version. The goal is to try and answer the question, "will adding a low-latency separate log device improve the performance of my workload?" To try to answer the question, we look at the amount of work asked of the ZIL. http://richardelling.blogspot.com/2009/01/zilstat.html Enjoy! -- richard _______________________________________________ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss
