From owner-freebsd-questions@FreeBSD.ORG Mon May 7 13:40:43 2007 Return-Path: X-Original-To: questions@freebsd.org Delivered-To: freebsd-questions@FreeBSD.ORG Received: from mx1.freebsd.org (mx1.freebsd.org [69.147.83.52]) by hub.freebsd.org (Postfix) with ESMTP id 42A7B16A400 for ; Mon, 7 May 2007 13:40:43 +0000 (UTC) (envelope-from wmoran@potentialtech.com) Received: from mail.potentialtech.com (internet.potentialtech.com [66.167.251.6]) by mx1.freebsd.org (Postfix) with ESMTP id 1A5FA13C447 for ; Mon, 7 May 2007 13:40:43 +0000 (UTC) (envelope-from wmoran@potentialtech.com) Received: from vanquish.pgh.priv.collaborativefusion.com (pr40.pitbpa0.pub.collaborativefusion.com [206.210.89.202]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (No client certificate requested) by mail.potentialtech.com (Postfix) with ESMTP id 138FEEBC78 for ; Mon, 7 May 2007 09:40:42 -0400 (EDT) Date: Mon, 7 May 2007 09:40:41 -0400 From: Bill Moran To: questions@freebsd.org Message-Id: <20070507094041.92f2d110.wmoran@potentialtech.com> X-Mailer: Sylpheed 2.3.1 (GTK+ 2.10.11; i386-portbld-freebsd6.1) Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Cc: Subject: Upper limit on mount points? X-BeenThere: freebsd-questions@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: User questions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 07 May 2007 13:40:43 -0000 We have some systems with a lot of jails. We're using ezjail, which results in a lot of nullfs mounts. In combination with some other nullfs tricks I'm using on this system, I'm a bit concerned that we're going to hit some sort of limit on the number of mountpoint. Google hasn't been much help, and I thought I'd ask here before I dug in to the sourcecode. I'm wondering if there's an upper limit (either hard or practical) on the number of mountpoints on a system? [The interesting thing is that this seems to be the only limitation I'm worried about at this time. With 30G of HDD space, 2G of RAM and a single 3Ghz CPU, we're running 12 jails and still have room for more. Let's see VMWare do that!] -- Bill Moran http://www.potentialtech.com