Hi Stefan, We checked all limits per system and per process. Everything fine. But we will also check for ZFS limits, maybe they are different. Thank you for your suggestions, Martin Am 19.07.2010 17:06 schrieb "Stefan Knecht" <knecht.stefan@xxxxxxxxx>: Martin Perhaps it has something to do with the max number of open files on your system ? Did you check the peak # files opened, and your limits ? Stefan ========================= Stefan P Knecht CEO & Founder s@xxxxxxxx 10046 Consulting GmbH Schwarzackerstrasse 29 CH-8304 Wallisellen Switzerland Phone +41-(0)8400-10046 Cell +41 (0) 79 571 36 27 info@xxxxxxxx http://www.10046.ch ========================= On Mon, Jul 19, 2010 at 2:01 PM, Martin Berger <martin.a.berger@xxxxxxxxx> wrote: > > Yes, they a...