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Message: 4
Date: Wed, 04 Jan 2006 18:15:28 +0100
From: Juraj Bednar <[EMAIL PROTECTED]>
Subject: Re: [Ocfs2-users] Ocfs2-users Digest, Vol 25, Issue 1
To: shashi <[EMAIL PROTECTED]>, [email protected]
Message-ID: <[EMAIL PROTECTED]>
Content-Type: text/plain; charset=UTF-8; format=flowed

Hello,


You can do data replication over the network (RAID-1 over network) . DRBD (www.drbd.org) is the right solution for you . It will work with OCFv2 also .


well, are you sure? According to this FAQ entry:
http://wiki.linux-ha.org/DRBD/FAQ#head-a39a43203ed93af71065d2a7b36b0db089207cbd

According to this, DRBD does not allow concurrent writes from different nodes.
Yes . At present , DRBD doesn't allow concurrent writes . But , it is in agenda of DRBD devolopers .

Or you mean something like doing DRBD for backing the data up and iSCSI/GNBD/NBD/ENBD for actually sharing the DRBD device?
You can use DRBD for Mirroring , backup and replication .

RAID-1 over network is a good idea, but I need some, that is cluster-aware (because of write ordering) and allows writes from all nodes...
There is a good support for DRBD from Linux-HA . You can combine Linux-HA with DRBD to build a true cluster.


Or am I completely wrong here?


   Juraj.

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