From owner-freebsd-cluster Fri Oct 5 11:41:13 2001 Delivered-To: freebsd-cluster@freebsd.org Received: from web20105.mail.yahoo.com (web20105.mail.yahoo.com [216.136.226.42]) by hub.freebsd.org (Postfix) with SMTP id 5056F37B40A for ; Fri, 5 Oct 2001 11:41:11 -0700 (PDT) Message-ID: <20011005184111.93369.qmail@web20105.mail.yahoo.com> Received: from [62.11.63.57] by web20105.mail.yahoo.com via HTTP; Fri, 05 Oct 2001 20:41:11 CEST Date: Fri, 5 Oct 2001 20:41:11 +0200 (CEST) From: =?iso-8859-1?q?Fabrizio=20Ravazzini?= Subject: NFS Alternatives? To: freebsd-cluster@freebsd.org In-Reply-To: <20011005183801.612FA37B408@hub.freebsd.org> MIME-Version: 1.0 Content-Type: text/plain; charset=iso-8859-1 Content-Transfer-Encoding: 8bit Sender: owner-freebsd-cluster@FreeBSD.ORG Precedence: bulk List-ID: List-Archive: (Web Archive) List-Help: (List Instructions) List-Subscribe: List-Unsubscribe: X-Loop: FreeBSD.ORG Hello all I would like to build a mail/web cluster server like this: Machine---+ A | +-----+ +-|Disks| Machine-----| | B +-----+ I want the two machines accessing the disk array (for example the Compaq smart array disk set) at the same time and load balanced. I'd like the disks attached at the two machines via scsi or Ethernet. To manage the Load Balancing I think to use Balance.sourceforge.net or Dns RoundRobin. But to share the disks... ...I've thinked about NFS but we need a third machine to manage the NFS server for the array. Then I've found Gfs (Global File System) but seems only for LinuX. The problem is that I don't want the single point of failure which is the NFS server. Some advices? Many thanks Bye ______________________________________________________________________ Do You Yahoo!? Il tuo indirizzo gratis e per sempre @yahoo.it su http://mail.yahoo.it To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-cluster" in the body of the message From owner-freebsd-cluster Fri Oct 5 12:24:28 2001 Delivered-To: freebsd-cluster@freebsd.org Received: from elm.phenome.org (elm.phenome.org [194.153.169.3]) by hub.freebsd.org (Postfix) with ESMTP id 9DC8237B406 for ; Fri, 5 Oct 2001 12:24:24 -0700 (PDT) Received: from localhost (joshua@localhost [127.0.0.1]) by localhost (8.12.0.Beta19/8.12.0.Beta19/Debian 8.12.0.Beta19) with ESMTP id f95JON8A011665; Fri, 5 Oct 2001 20:24:23 +0100 Date: Fri, 5 Oct 2001 20:24:23 +0100 (BST) From: Joshua Goodall X-X-Sender: To: =?iso-8859-1?q?Fabrizio=20Ravazzini?= Cc: Subject: Re: NFS Alternatives? In-Reply-To: <20011005184111.93369.qmail@web20105.mail.yahoo.com> Message-ID: MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: owner-freebsd-cluster@FreeBSD.ORG Precedence: bulk List-ID: List-Archive: (Web Archive) List-Help: (List Instructions) List-Subscribe: List-Unsubscribe: X-Loop: FreeBSD.ORG On Fri, 5 Oct 2001, [iso-8859-1] Fabrizio Ravazzini wrote: > Hello all I would like to build a mail/web cluster > server like this: > > Machine---+ > A | +-----+ > +-|Disks| > Machine-----| | > B +-----+ > > I want the two machines accessing the disk array > (for example the Compaq smart array disk set) at the > same time and load balanced. > I'd like the disks attached at the two machines via > scsi or Ethernet. Parallel writeable mounts are not in any release version of FreeBSD. > To manage the Load Balancing I think to use > Balance.sourceforge.net or Dns RoundRobin. You need something slightly more intelligent than roundrobin DNS, unless you want half your users to lose access if a machine goes down. IIRC, Balance requires another machine in front of A & B. > But to share the disks... > ...I've thinked about NFS but we need a third machine > to manage the NFS server for the array. > Then I've found Gfs (Global File System) but seems > only for LinuX. I recently rejected GFS for a production recommendation on the grounds of a) lack of production maturity b) STOMITH c) DMEP d) Linux-only. Your criteria may vary. Other parallel filesystems exist (e.g. CXFS, AdvFS) but not in FreeBSD and only at the research/experimental level for Linux, AFAIK (e.g. PVFS, which isn't a high-availability architecture anyway). > The problem is that I don't want the single point of > failure which is the NFS server. You'll need to look at commercial products (HA-NFS implementations, Netapps etc), not OSS, for this, unless you can get away with application-level replication. I'd love to be told I'm wrong on the above. Anyone know of a OSS (BSD or GPL) *production-grade* HA-NFS or parallel-mount fs (other than GFS)? Joshua To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-cluster" in the body of the message From owner-freebsd-cluster Sat Oct 6 1:21:17 2001 Delivered-To: freebsd-cluster@freebsd.org Received: from web20101.mail.yahoo.com (web20101.mail.yahoo.com [216.136.226.38]) by hub.freebsd.org (Postfix) with SMTP id 9344C37B406 for ; Sat, 6 Oct 2001 01:21:13 -0700 (PDT) Message-ID: <20011006082113.73486.qmail@web20101.mail.yahoo.com> Received: from [62.11.69.180] by web20101.mail.yahoo.com via HTTP; Sat, 06 Oct 2001 10:21:13 CEST Date: Sat, 6 Oct 2001 10:21:13 +0200 (CEST) From: =?iso-8859-1?q?Fabrizio=20Ravazzini?= Subject: Re: NFS Alternatives? To: Joshua Goodall Cc: freebsd-cluster@freebsd.org In-Reply-To: MIME-Version: 1.0 Content-Type: text/plain; charset=iso-8859-1 Content-Transfer-Encoding: 8bit Sender: owner-freebsd-cluster@FreeBSD.ORG Precedence: bulk List-ID: List-Archive: (Web Archive) List-Help: (List Instructions) List-Subscribe: List-Unsubscribe: X-Loop: FreeBSD.ORG --- Joshua Goodall ha scritto: > > On Fri, 5 Oct 2001, [iso-8859-1] Fabrizio Ravazzini > wrote: > > > Hello all I would like to build a mail/web cluster > > server like this: > > > > Machine---+ > > A | +-----+ > > +-|Disks| > > Machine-----| | > > B +-----+ > > > > I want the two machines accessing the disk array > > (for example the Compaq smart array disk set) at > the > > same time and load balanced. > > I'd like the disks attached at the two machines > via > > scsi or Ethernet. > > Parallel writeable mounts are not in any release > version of FreeBSD. > > > To manage the Load Balancing I think to use > > Balance.sourceforge.net or Dns RoundRobin. > > You need something slightly more intelligent than > roundrobin DNS, unless > you want half your users to lose access if a machine > goes down. IIRC, > Balance requires another machine in front of A & B. Thanks for help. With Balance I can put the services listening on non standard port i.e. http onth 13080 and as Balance receives a query on the 80 it redirects it on the local machine(A) on the 13080 or on the other machine(B), someone told me to balance like this. > > > But to share the disks... > > ...I've thinked about NFS but we need a third > machine > > to manage the NFS server for the array. > > Then I've found Gfs (Global File System) but seems > > only for LinuX. > > I recently rejected GFS for a production > recommendation on the grounds of > a) lack of production maturity b) STOMITH c) DMEP d) > Linux-only. Your > criteria may vary. > > Other parallel filesystems exist (e.g. CXFS, AdvFS) > but not in FreeBSD and > only at the research/experimental level for Linux, > AFAIK (e.g. PVFS, > which isn't a high-availability architecture > anyway). > > > The problem is that I don't want the single point > of > > failure which is the NFS server. > > You'll need to look at commercial products (HA-NFS > implementations, > Netapps etc), not OSS, for this, unless you can get > away with > application-level replication. > So no way to make my server cheaply with FreeBSD...sigh! Best regards. Fabrizio > I'd love to be told I'm wrong on the above. Anyone > know of a OSS (BSD or > GPL) *production-grade* HA-NFS or parallel-mount fs > (other than GFS)? > > Joshua > > ______________________________________________________________________ Do You Yahoo!? Il tuo indirizzo gratis e per sempre @yahoo.it su http://mail.yahoo.it To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-cluster" in the body of the message