On Mon, 22 Nov 2004, Brian Fundakowski Feldman wrote: > > I have set an idle timeout for the hard-disk. But when there is no > > user activity there are frequent disk accesses. > > How can one trace disk access? > > I'd like to know the kind of access and on which files/directories/ > > nodes. I'd like to log on the console or on a memory disk file. > > You should look to the MAC framework to provide you -- if not the entire > solution -- at least insight into how and where you can do this. If you > were to do it at the disk device level, it would be a GEOM module, > though.
I recently added KTR tracing to geom_io.c which allows a trace of I/O events both as they go up and down the GEOM stack, and as they're handed off to disks, etc, so that should help provide detailed tracing of the actual disk I/O's. For files/directories, hopefully we'll be ready to start merging some of the Audit changes from the TrustedBSD branches to CVS in the next few months, which will also provide a useful tracing mechanism at the higher levels of the kernel. Robert N M Watson FreeBSD Core Team, TrustedBSD Projects [EMAIL PROTECTED] Principal Research Scientist, McAfee Research _______________________________________________ [EMAIL PROTECTED] mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-hackers To unsubscribe, send any mail to "[EMAIL PROTECTED]"
