On Tue, Feb 22, 2011 at 11:05:00AM +0000, Bruce Cran wrote: > On Mon, 2011-02-07 at 00:55 -0800, Jeremy Chadwick wrote: > > > # NOTE: Systems with 8GB of RAM or more have prefetch enabled by default. > > vfs.zfs.prefetch_disable="1" > > I think ZFS is enabled with 4 GB or more, not 8 GB: > > "ZFS NOTICE: Prefetch is disabled by default if less than 4GB of RAM is > present; to enable, add "vfs.zfs.prefetch_disable=0" > to /boot/loader.conf."
The message ZFS on FreeBSD spits out (shown above) is somewhat inaccurate. I spent the time looking at the code and blogged about the condition over a year ago: http://koitsu.wordpress.com/2009/10/12/testing-out-freebsd-8-0-rc1/ Search for "ZFS NOTICE: system has less than 4GB" on the page above. I still feel the message needs to be re-worded, despite having gone through multiple changes of phrasing already. -- | Jeremy Chadwick j...@parodius.com | | Parodius Networking http://www.parodius.com/ | | UNIX Systems Administrator Mountain View, CA, USA | | Making life hard for others since 1977. PGP 4BD6C0CB | _______________________________________________ freebsd-stable@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-stable To unsubscribe, send any mail to "freebsd-stable-unsubscr...@freebsd.org"
