Date: Tue, 30 Sep 2014 12:57:53 +0100 (BST) From: Anton Shterenlikht <mexas@bris.ac.uk> To: mexas@bristol.ac.uk, wojtek@puchar.net Cc: freebsd-hackers@freebsd.org Subject: Re: cluster FS? Message-ID: <201409301157.s8UBvr8f079812@mech-as221.men.bris.ac.uk> In-Reply-To: <alpine.BSF.2.00.1409301300350.864@laptop>
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>From wojtek@puchar.net Tue Sep 30 12:14:35 2014 > >as disk array presents block devices, not files it is not possible to have >filesystem read write access with more than one computer to the same block >device. >There is no AFAIK filesystems that can communicate between nodes to >synchronize state after writes and prevent conflict. The hardware is inherited from a VMS cluster, which did precisely that. I don't remember now what FS VMS used. I guess I'm trying to replicate a VMS cluster with FreeBSD means. >> I want to have all nodes equal, i.e. no master/slave >> or server/client model. Also, the disk array >> provides adequate RAID already, so that is not > >instead of using disk arrays (expensive) it's better to run FreeBSD as well.. I have a populated array already, so no extra costs are involved. >file server with good deal of disks and connectivity and export >filesystems using eg. NFS. but again, what if the NFS server dies? The data is no longer available. Thanks Anton
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