From owner-freebsd-current Sun Mar 8 19:46:00 1998 Return-Path: Received: (from majordom@localhost) by hub.freebsd.org (8.8.8/8.8.8) id TAA14239 for freebsd-current-outgoing; Sun, 8 Mar 1998 19:46:00 -0800 (PST) (envelope-from owner-freebsd-current@FreeBSD.ORG) Received: from ns.mt.sri.com (sri-gw.MT.net [206.127.105.141]) by hub.freebsd.org (8.8.8/8.8.8) with ESMTP id TAA14229; Sun, 8 Mar 1998 19:45:52 -0800 (PST) (envelope-from nate@mt.sri.com) Received: from mt.sri.com (rocky.mt.sri.com [206.127.76.100]) by ns.mt.sri.com (8.8.8/8.8.8) with SMTP id UAA25127; Sun, 8 Mar 1998 20:21:24 -0700 (MST) (envelope-from nate@rocky.mt.sri.com) Received: by mt.sri.com (SMI-8.6/SMI-SVR4) id UAA14280; Sun, 8 Mar 1998 20:21:22 -0700 Date: Sun, 8 Mar 1998 20:21:22 -0700 Message-Id: <199803090321.UAA14280@mt.sri.com> From: Nate Williams MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit To: Terry Lambert Cc: dyson@FreeBSD.ORG, karpen@ocean.campus.luth.se, current@FreeBSD.ORG Subject: Re: Okay, -current should be conditionally safe to use In-Reply-To: <199803090301.UAA15987@usr08.primenet.com> References: <199803080012.TAA00282@dyson.iquest.net> <199803090301.UAA15987@usr08.primenet.com> X-Mailer: VM 6.29 under 19.15 XEmacs Lucid Sender: owner-freebsd-current@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.ORG [ NFS performance ] > > It probably isn't a good idea to use softupdates in production yet. However, > > another interesting thing to try is: > > > > sysctl -w vfs.nfs.async=1 > > > > on the server. This is better (safer) than softupdates, but you *can* > > have data lossage, due to writes not being committed to disk. It is > > a good idea to have a UPS when using the above option. > > Note: it is a technical violation of the NFS protocol specification > for an NFS server to ACK a write which has not been commited to > stable storage. Note: Many commercial OS's have this turned on by default, including SUN at one point. Nate To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-current" in the body of the message