Date: Tue, 7 Jul 2009 15:54:23 -0500 From: Adam Vande More <amvandemore@gmail.com> To: RIck van der Zwet <rvdzwet@transip.nl> Cc: freebsd-questions@freebsd.org Subject: Re: FreeBSD HA file cluster possibilities Message-ID: <6201873e0907071354y453a71edh3e75391b37399fe0@mail.gmail.com> In-Reply-To: <4A533CEA.7000007@transip.nl> References: <4A533CEA.7000007@transip.nl>
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On Tue, Jul 7, 2009 at 7:17 AM, RIck van der Zwet <rvdzwet@transip.nl>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> Is there a problem with the DRBD and Heartbeat config? -- Adam Vande More
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