Date: Sat, 29 Jul 2000 13:18:31 -0700 (PDT) From: Matthew Jacob <mjacob@feral.com> To: David Greenman <dg@root.com> Cc: Francisco Reyes <fjrm@yahoo.com>, scsi@FreeBSD.ORG Subject: Re: Sharing external RAID with FreeBSD Message-ID: <Pine.BSF.4.10.10007291316511.67255-100000@beppo.feral.com> In-Reply-To: <200007292000.NAA11764@implode.root.com>
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You can also share spindles (luns) if you use a FreeBSD disk label, or a disklabel that FreeBSD will understand, and you use different partitions. You can also share read-only filesystems. On Sat, 29 Jul 2000, David Greenman wrote: > >What would it take for FreeBSD to be able to share an > >external SCSI RAID system? > > If the servers are accessing different LUNs (and thus different > filesystems), then it should work already. If you want the servers to > have shared access to the same filesystem, then that's a whole different > thing that requires a new type of filesystem. Basically the servers need > to coordinate accesses to the filesystem via a lock protocol, and they > need to have a way of handling cache coherency. The closest thing to > meeting these goals that I've seen so far is the "Global File System", > and last I heard, someone was working on porting it to FreeBSD. > > -DG > > David Greenman > Co-founder, The FreeBSD Project - http://www.freebsd.org > Manufacturer of high-performance Internet servers - http://www.terasolutions.com > Pave the road of life with opportunities. > > > 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
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