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Re: [Linux-cluster] SEMI OT. Synchronizing jboss cache dir.



On Tue, 1 Sep 2009 14:21:47 +0200, ESGLinux wrote 
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> You should use one iscsi lun shared by both cluster nodes. You can mount a
GFS filesystem without locking (lock=nolock) with (correct me if I am wrong)
the node not being part of a cluster, but only in one node at a time. 
> You can mount a GFS filesystem created for a certain cluster without having
the filesystem configured as a resource, the only requisite is that the nodes
mounting the filesystem have to be part of that certain cluster. 
>  
> 
> If I have understand you ok, I need to create a cluster, for example,
MYCLUSTER, then create a resource of type GFS filesystem. After that I must
create 2 nodes in the cluster, access de iscsi lun from this nodes and finally
mount the gfs filesystem. 
> 
> With these I can share this directory between the nodes without the risk of
file corruption? 
> 
> Well, in the case I canÒ‘t use this approach, is there any way to do this? 
> 

if you don't have shared storage, but you have local disks - you may use DRBD
instead of iSCSI. About the cluster - you don't need to define any resources -
just have a cluster which is quorate to avoid data corruption while accessing
the GFS on DRBD

> Thanks for your time, 
> 
> ESG 
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> Regards, 
> Juanra 
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