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

[ESGLinux]

2009/9/1 Kaloyan Kovachev <kkovachev at varna.net>

> On Tue, 1 Sep 2009 14:21:47 +0200, ESGLinux wrote
> >
> >
> >
> >
> >
> > 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 canґt 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.


this looks interesting, any good manual about using DRBD?



> 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
>
>
ok, so I only need the cluster with the 2 nodes and the gfs filesystem
formated, for example like this:

gfs_mkfs -p lock_dlm -t MyCLUSTER:mydata -j 8 /dev/sda1

When  I have done this I can mount /dev/sda1 in both nodes as use it

isn´t it?

Thanks,

ESG


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