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Date:      Tue, 7 Jul 2009 15:54:23 -0500
From:      Adam Vande More <>
To:        RIck van der Zwet <>
Subject:   Re: FreeBSD HA file cluster possibilities
Message-ID:  <>
In-Reply-To: <>
References:  <>

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On Tue, Jul 7, 2009 at 7:17 AM, 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: - 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
> <>

Is there a problem with the DRBD and Heartbeat config?

Adam Vande More

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