[Ocfs2-users] nbd RAID and ocfs2

[Sunil Mushran]

As far as ocfs2 is concerned, you can use debugfs.ocfs2 to
check whether you are seeing the same "physical device" on
the two nodes.

# echo "stats" | debugfs.ocfs2 -n /dev/sdX
Compare the UUIDs.

# echo "ls -l /path" | debugfs.ocfs2 -n /dev/sdX
List some dir.

Carsten Hensiek wrote:
>
> Hi there,
>
> does anybody have some experience with building a RAID over network? 
> I'd like to build the following:
>
> I have five systems running Debian GNU/Linux - each with a 50GB data 
> partition. Now I'd like to build a RAID5 or RAID6 out of those five 
> partitions (the systems are attached at a gigabit ethernet) and mount 
> them on the servers (using ocfs2).
>
> I tried to export the partitions with nbd and built the RAID with 
> mdadm but the mounted RAID doesn't seem to be consistent (a file on 
> the ocfs2 partition on node1 does not exsist on the ocfs2 partition on 
> node2). Is this a problem with nbd, mdadm or ocfs2?
>
> Thanks in advance
> Carsten Hensiek
>
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