Date: Sat, 6 Oct 2001 10:21:13 +0200 (CEST) From: =?iso-8859-1?q?Fabrizio=20Ravazzini?= <freefabri@yahoo.it> To: Joshua Goodall <joshua@roughtrade.net> Cc: freebsd-cluster@freebsd.org Subject: Re: NFS Alternatives? Message-ID: <20011006082113.73486.qmail@web20101.mail.yahoo.com> In-Reply-To: <Pine.LNX.4.33.0110052002090.31480-100000@elm.phenome.org>
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--- Joshua Goodall <joshua@roughtrade.net> 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
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