I've used filebench on solaris 10 for testing different disk combinations for a database servers a head of a major purchase. I had to write my own graphing scripts, but the information was very informative.
My advice would be to max out your RAM (for ARC) before you bother with a ZIL, or L2ARC. Where a fast SSD for a ZIL really shines is random synchronized writes. IE a database transaction. You'll notice this when you run filebench and look at the results. I'm not sure how NFS handles FSYNC and DSYNC to be honest. Cheers, GF On Thu, Dec 1, 2011 at 9:59 AM, Gary Mills <gary_mi...@fastmail.fm> wrote: > I'm in the process of setting up a fileserver running oi_151a. How > can I determine the performance improvement from adding log and cache > devices? I'm using filebench with the fileserver personality. Is > that my best choice? So far, I've tried filebench directly on the > server and also on an NFS client. What statistics should I be > watching? > > To begin, I'm using a single 1 TB SAS disk on the server, without log > or cache devices. I intend to add an Intel 311 SSD for the log and > Intel 320 SSDs for the cache. I'd like to ensure that these improve > NFS performance. I'd like CIFS and zfs send performance to be > reasonable as well. > > -- > -Gary Mills- -refurb- -Winnipeg, Manitoba, Canada- > > _______________________________________________ > OpenIndiana-discuss mailing list > OpenIndiana-discuss@openindiana.org > http://openindiana.org/mailman/listinfo/openindiana-discuss _______________________________________________ OpenIndiana-discuss mailing list OpenIndiana-discuss@openindiana.org http://openindiana.org/mailman/listinfo/openindiana-discuss
