[OpenAFS] Re: OpenAFS on ZFS

Andrew Deason adeason@sinenomine.net
Mon, 24 Jun 2013 15:25:35 -0500

On Fri, 21 Jun 2013 13:07:46 +0100
<milek@task.gda.pl> wrote:

> 	- if running OpenAFS 1.6 disable the sync thread (the one which
> 	syncs data every 10s) It is pointless on ZFS (and most other
> 	file systems) and all it usually does is it negatively impacts
> 	your performance; ZFS will sync all data every 5s anyway
> 	There is a patch to OpenAFS 1.6.x to make this tunable. Don't
> 	remember in which release it is in.

This is the -sync runtime option, which will be in the release after
1.6.2 (it is present in the 1.6.3pre* releases). To get the behavior
that Robert describes here, give '-sync none' or '-sync onclose'. Or
technically, '-sync always' will also get rid of the sync thread, but
will probably give you noticeably worse performance, not better.

Andrew Deason