stupid question about lvm/lvm2/clvm

Hi!
I want build cluster. I couldn't decide about which system use OCFS2 or GFS2.
I was looking for some information about clvm.
On redhat website I found some tarball with clvm toolset but called lvm2... Does it mean that clvm=lvm2? Or clvm is special extension to lvm2, not identical with lvm2.

I use openfiler (installed lvm2-2.02.14). Does it include clvm ext.?

Quoted 8 lines · Hans

Hi!
I want build cluster. I couldn't decide about which system use OCFS2 or GFS2.
I was looking for some information about clvm.
On redhat website I found some tarball with clvm toolset but called lvm2... Does it mean that clvm=lvm2? Or clvm is special extension to lvm2, not identical with lvm2.

The source tarball for lvm2 includes clvmd too. Enable it at compile-time time using ./configure --with-clvmd

If you're using RPMs then the cluster LVM one is called lvm2-cluster

Quoted 4 lines

I use openfiler (installed lvm2-2.02.14). Does it include clvm ext.?

Thanks. Openfiler uses rPath linux.
Is it any way that I can check if lvm is configured with clvm?

Maybe it should be listed in lvm formats?