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Date:      Mon, 29 Sep 2014 14:51:15 +0100 (BST)
From:      Anton Shterenlikht <>
Subject:   Re: two hosts sharing the same data fia SAN?
Message-ID:  <>
In-Reply-To: <>

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>> On 09/29/14 07:36, Anton Shterenlikht wrote:
>>> Hello
>>> I've 2 separate freebsd boxes, each connected
>>> vi fibre to a disk array. I'd like to have
>>> a set of disk units to be read/write accessible
>>> to both boxes. Seems this is not allowed with just
>>> UFS. If one box mounts the disk units, then the
>>> other box cannot mount them, i.e. seems the
>>> disks cannot be mounted on both boxes simultaneously.
>>> How can this be achived?
>>> I've had a quick look at HAST, but it seems the
>>> model their is different.
>>> Thanks
>>> Anton
>>> _______________________________________________
>>> mailing list
>>> To unsubscribe, send any mail to
>>> ""
>> NFS ?
>You need a clustered file system, like GFS for linux. At the moment I
>dont know if there are any working on freebsd. NFS is for sharind disk
>at file level, but if you want to share a disk al block level, you need
>a clustered fs.
>Saludos, Juan.

cluster file system...? How do I get one in FreeBSD.
>From looking in the archives, many people ask
for one periodically, but it seems it's not there.
NFS, HAST and iSCSI all seem do something different
from what I need.
In my case both nodes (actually I have more than two,
but it's perhaps easier to explain with just two)
have direct fibre access to the storage, no network required.
Also, it makes no sense to delegate one node
a server and another a client in my setup.
I'd like them to be identical,
so that access to the data
is equally possible if either node fails. 

The disk array alreay provides multiple levels
of RAID, so I don't need this.

So is something like this really does not
exist on FreeBSD (yet) ?



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