[Ocfs2-users] iscsi or some other form of shared storage?

[shashi]

  ------------------------------
> 
> Message: 4
> Date: Wed, 04 Jan 2006 18:15:28 +0100
> From: Juraj Bednar <jooray at gmail.com>
> Subject: Re: [Ocfs2-users] Ocfs2-users Digest, Vol 25, Issue 1
> To: shashi <shashi.boddula at oracle.com>, ocfs2-users at oss.oracle.com
> Message-ID: <43BC02B0.3030206 at gmail.com>
> 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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