Date: Tue, 07 Jul 2009 14:49:26 +0200 From: Mister Olli <mister.olli@googlemail.com> To: RIck van der Zwet <rvdzwet@transip.nl> Cc: freebsd-questions@freebsd.org Subject: Re: FreeBSD HA file cluster possibilities Message-ID: <1246970966.3986.23.camel@phoenix.blechhirn.net> In-Reply-To: <4A533CEA.7000007@transip.nl> References: <4A533CEA.7000007@transip.nl>
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Hi, I'm curious about your solution. Let me know if you have one :-) I'm wondering if d) is possible in FreeBSD as from my view it would be the best solution. Wether you use synchronous (assuming you have sufficient bandwith) or asynchronous writes. A wonderful solution would be if AFS would provide in-time replication. However at the moment replication is hand-task in AFS. Another solution would be possible but I'm not sure that it has decent performance. You could use subversion with autoversioning and let it write into a mysql DB (or any other FS that writes into a database) and configure database replication between the two fileservers. Has anyone setup this and is capable of providing information on data throughput? Regards, --- Mr. Olli On Tue, 2009-07-07 at 14:17 +0200, RIck van der Zwet wrote: > I been (re)searching and reading what the options are with regards to > H(igh) A(vailablility) file storage using FreeBSD, but cannot yet find a > proper working solution. Any advice welcome! > > I like to be able to mirror a full identical disk between two server. So > in case of hardware failure of server A (Master). Server B (Slave) > immediately takes over, without any loss of data. The Network > configuration is easy using ucarp/vppr. But the file system is the hard > part. Paths I have investigated: > > a) ggate & gmirror: Export system on Server B to Server A. Use gmirror > on Server A to keep identical disks. When the ggated on Server B > actually goes down, the whole setup freezes, until the ggated is back up > again. Second on network delays gmirror looses, having to sync all over > again. Leaving the machine at risk. > > b) SAN/iSCSI targets/gmirror: [Brainstorm] Have 2 iSCSI storage boxes > namely C and D. Have Server A run gmirror on the C and D. And let B > pickup on failure? Does this work? > > c) ssync/rsync: This does not suit the needs as it does not provide > realtime mirroring. Causing data-loss on failure. As rsync/ssync does > not run in realtime. > > d) drbd: http://www.drbd.org/ - Does anyone has a working (alternative) > setup on FreeBSD? > > > Any other solution/setup I am missing? Using external hardware/software > is all-right as long I am able to connect to FreeBSD with it and it > leaves no single point of failure. > > Thanks in advance! > /Rick > _______________________________________________ > freebsd-questions@freebsd.org mailing list > http://lists.freebsd.org/mailman/listinfo/freebsd-questions > To unsubscribe, send any mail to "freebsd-questions-unsubscribe@freebsd.org"
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