> Message: 1
> Date: Tue, 03 Jan 2006 02:09:30 +0100
> From: Juraj Bednar <jooray at gmail.com>
> Subject: [Ocfs2-users] iscsi or some other form of shared storage?
> To: ocfs2-users at oss.oracle.com
> Message-ID: <43B9CECA.8090206 at gmail.com>
> Content-Type: text/plain; charset=UTF-8; format=flowed
>
> Hello,
>
>
> I would like to ask about using shared storage for ocfs2. I would like
> to have two linux servers connected using dedicated 1Gbps connection and
> share the same data. I have no SAN, etc.
>
> What is the best approach of building the shared storage? I was
> considering using iSCSI, having /dev/sda1 as a target and mounted from
> the other machine. This would probably work, but this way, loosing
> machine, which is iSCSI target means a single point of failure.
There are some iSCSI HA Solutions from EMC and NetAPP and other vendors
.>
> Doing RAID-1 on local driver and remote iSCSI drive could bring the
> systems into inconsistent state, right?
Yes>
> Is it possible to do some kind of data replication, which would not
> cause problems to OCFS2? Any links to related setups, comments, etc.
> appreciated.
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 . There are some other paid solution from IBM , VERITAS
,LifeKeeper.....,etc ..
>
>
> Thanks,
>
> Juraj
>
>
>
> ------------------------------
>
> Message: 2
> Date: Tue, 03 Jan 2006 13:11:10 +0100
> From: Juraj Bednar <jooray at gmail.com>
> Subject: [Ocfs2-users] ddraid?
> To: ocfs2-users at oss.oracle.com
> Message-ID: <43BA69DE.6050901 at gmail.com>
> Content-Type: text/plain; charset=UTF-8; format=flowed
>
> Hello,
>
>
> has anyone (except of author) tried ocfs2 with
> http://sourceware.org/cluster/ddraid/?
>
> I would really like to build a fully redundant storage without using a
> SAN (with two PCs). But on the block device level (over network, using
> raid), there are just so many things, that can go wrong with the
> implementation, I'm not quite sure what to use.
>
> I've seen some reports of using GFS + GNBD + raid1 (fr1), but I
> believe this will fail on the first split brain occasion.
>
> I would really like to have some good distributed filesystem solution,
> that just works under Linux, in fact, I miss this for years. OCFS2 is a
> good start (also with GFS), but the requirement of shared storage is
> quite a problem (consider you want the cluster to span two independent
> datacenters, ...).
>
> Any ideas are helpful.
>
> Thanks for the link to PVFS2, but I didn't find out, if it can be
> redundant yet.
>
> Juraj.
>
>
> ------------------------------
>
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>
> End of Ocfs2-users Digest, Vol 25, Issue 1
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