[linux-lvm] lvm2 cluster aware

[Lentes, Bernd]

----- On Aug 25, 2016, at 10:49 AM, su liu liusu8788 at gmail.com wrote:

> hi digimer , Thanks your replay explanation.

> My use case is:

> One admin node and some compute nodes, All the nodes shares a storage (eg.
> FCSAN).
> I create a vg on the shared storage， and the vg can be seen on all the nodes.
> The admin node's responsibility is to manage the logical volume it created, and
> the other compute node can attach these lvs to VM directly, not through admin
> node.
> Under the scene of LVM driver of OpenStack Cinder project, The lvm volumes are
> attached to VMs through Cinder node via ISCSI. So I want to make sure whether I
> can attach lvm volumes to VMs directly.

> To achieve this goal, Should I use the method you mentiond before?

> Thanks very much!

Please keep in mind that cLVM just cares about informing all nodes of changes of the
lvm metadata. It is not responsable for managing concurrent access to the lv's.
For that you need e.g. a cluster FS.


Bernd
 

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