Over the weekend I got ZFS up and running under FreeBSD and have had much the same experience with it that I have with Solaris - it works great out of the box and once configured, it is easy to forget about. So far the only real difference is anything you might tune via /etc/system (or mdb) is done via sysctl.*
The environment that it is running in has less memory than I've used it on with Solaris before, so I went to look at how to tune the ARC, only to discover that it had already been capped to roughly half the size of the kernel kmem map (which itself was about half the size of physical RAM) and my immediate thoughts were "why can't it be like this on Solaris?" Given that the topic of tuning the ARC size seems to be of concern for a few people, what are people's thoughts on choosing a better value as the default size for the ARC on Solaris? And a big thanks to Pawel for making this available - its letting me use ZFS where I couldn't before! Darren * one interesting observation with using the current ZFS snapshot is the FreeBSD kernel is compiled with "lock order reversal" detection (WITNESS) enabled and I've observed a few of these, although I don't know if the lock ordering has been 100% preserved. _______________________________________________ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss
