From owner-freebsd-scsi Mon Apr 24 13:48:47 2000 Delivered-To: freebsd-scsi@freebsd.org Received: from feral.com (feral.com [192.67.166.1]) by hub.freebsd.org (Postfix) with ESMTP id EB32B37B8E8 for ; Mon, 24 Apr 2000 13:48:29 -0700 (PDT) (envelope-from mjacob@feral.com) Received: from semuta.feral.com (semuta [192.67.166.70]) by feral.com (8.9.3/8.9.3) with ESMTP id NAA05169; Mon, 24 Apr 2000 13:47:39 -0700 Date: Mon, 24 Apr 2000 13:48:22 -0700 (PDT) From: Matthew Jacob Reply-To: mjacob@feral.com To: sthaug@nethelp.no Cc: ken@kdm.org, freebsd-scsi@FreeBSD.ORG Subject: Re: Safe mounting of one file system on multiple hosts? In-Reply-To: <72991.956601166@verdi.nethelp.no> Message-ID: MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: owner-freebsd-scsi@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.org Define 'problems'. On Mon, 24 Apr 2000 sthaug@nethelp.no wrote: > > I would recommend that you test out the controller carefully under high > > load conditions if you have more than one array configured on it. > > > > There have been a number of reports (see the list archives) about problems > > with CMD RAID arrays with more than one LUN (i.e. more than one array) > > configured. > > I have two LUNs on one of the host channels, and I can easily provoke > problems here (running a few copies of bonnie, for instance) with > tagged queueing enabled. If I turn off tagged queueing on the host > channel with multiple LUNs (as suggested by Oliver Blasnik > ), there are no problems. > > Steinar Haug, Nethelp consulting, sthaug@nethelp.no > > > To Unsubscribe: send mail to majordomo@FreeBSD.org > with "unsubscribe freebsd-scsi" in the body of the message > To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-scsi" in the body of the message