From mboxrd@z Thu Jan 1 00:00:00 1970 To: 9fans@cse.psu.edu Subject: Re: [9fans] 9p2k, fsync From: nemo@gsyc.escet.urjc.es MIME-Version: 1.0 Content-Type: multipart/mixed; boundary="upas-npcebigtbkkztrhcenlyagloqw" Message-Id: <20010208175535.05700199DC@mail.cse.psu.edu> Date: Thu, 8 Feb 2001 19:08:35 -0500 Topicbox-Message-UUID: 5e76a216-eac9-11e9-9e20-41e7f4b1d025 This is a multi-part message in MIME format. --upas-npcebigtbkkztrhcenlyagloqw Content-Disposition: inline Content-Type: text/plain; charset="US-ASCII" Content-Transfer-Encoding: 7bit I was not asking for any T* message, other than the ones in 9P. I was asking for a process listening for `innocent' command requests, (in the way of /srv/kfs*.cmd). I define `innocent' as the subset of console commands that may not cause harm. --upas-npcebigtbkkztrhcenlyagloqw Content-Type: message/rfc822 Content-Disposition: inline Return-Path: <9fans-admin@cse.psu.edu> Received: from mail.cse.psu.edu (postfix@psuvax1.cse.psu.edu [130.203.4.6]) by gsyc.escet.urjc.es (8.9.3/8.9.3/Debian 8.9.3-21) with ESMTP id SAA04398; Thu, 8 Feb 2001 18:47:36 +0100 X-Authentication-Warning: gsyc.escet.urjc.es: Host postfix@psuvax1.cse.psu.edu [130.203.4.6] claimed to be mail.cse.psu.edu Received: from psuvax1.cse.psu.edu (psuvax1.cse.psu.edu [130.203.16.6]) by mail.cse.psu.edu (CSE Mail Server) with ESMTP id D1858199EF; Thu, 8 Feb 2001 12:47:10 -0500 (EST) Received: from prv-mail20.provo.novell.com (prv-mail20.provo.novell.com [137.65.81.122]) by mail.cse.psu.edu (CSE Mail Server) with SMTP id 3FCBF199DC for <9fans@cse.psu.edu>; Thu, 8 Feb 2001 12:46:25 -0500 (EST) Received: from INET-PRV-Message_Server by prv-mail20.provo.novell.com with Novell_GroupWise; Thu, 08 Feb 2001 10:46:15 -0700 Message-Id: X-Mailer: Novell GroupWise Internet Agent 5.5.5.1 From: "Paul Taysom" To: <9fans@cse.psu.edu> Subject: Re: [9fans] 9p2k, fsync Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Disposition: inline Sender: 9fans-admin@cse.psu.edu Errors-To: 9fans-admin@cse.psu.edu X-BeenThere: 9fans@cse.psu.edu X-Mailman-Version: 2.0.1 Precedence: bulk Reply-To: 9fans@cse.psu.edu List-Id: Fans of the OS Plan 9 from Bell Labs <9fans.cse.psu.edu> List-Archive: Date: Thu, 08 Feb 2001 10:46:03 -0700 Content-Transfer-Encoding: 8bit X-MIME-Autoconverted: from quoted-printable to 8bit by gsyc.escet.urjc.es id SAA04398 Tsync: This way there be dragons. The next thing you'll be asking for is byte range locks and then locks that can survive crashes and then something to coordinate updates to multiple files and then away to back it up . . . . . . If you want ACID let's look at away of providing for it within the context of the a simple file protocol. Ideas for sync: 1. Battery backed static RAM for the more resent requests like NetApp. 2. A volume that does write through or flush on close. I agree that databases have gotten way out of hand but is there away within the spirit of Plan 9 to provide ACID? Sync does not meet the requirement. Paul Taysom >>> nemo@gsyc.escet.urjc.es 02/08/01 07:03AM >>> : Hey? No disagreement that it's a fileserver issue, but I should also : be able to ask the file server to sync the data associated with a : particular FID. That's a question I have. I understand it can be done from its console, but is there any way to ask 9pcfs for an inmediate sync through the network? And another one. Any plans to make the future fs kernel do software mirrowing on ide disks? --upas-npcebigtbkkztrhcenlyagloqw--