Bug 1286026

Description of problem:
=======================
Customer is using a HA-LVM mirror logical volumes as resource for Pacemaker cluster.

When using the option 'partial_activation=true', like in the following resource,

# pcs resource show vgexample
 Resource: vgexample (class=ocf provider=heartbeat type=LVM)
  Attributes: volgrpname=vg_example exclusive=true partial_activation=true
 ...

Customer expects that in case of failure of a logical volume segment (missing PV), the cluster can still activate the VG and start the volume (in the LVM script, 'partial_activation=true' converts to 'vgchange -ay ... <vg> --partial')


But when running:

# pcs resource move res_grp    # res_grp is resource group with the vgexample resource

it fails.


It's because in the LVM ocf script, before doing the vgchange, the script
runs 'vgck <vg>' (in the LVM_validate_all() function) which fails because of
the missing PV.

When commenting out the vgck part as a test and everything worked as expected.





Version-Release number of selected component (if applicable):
=============================================================
RHEL 6.7

# rpm -qf /usr/lib/ocf/resource.d/heartbeat/LVM
resource-agents-3.9.5-24.el6.x86_64



How reproducible:
=================
always


Steps to Reproduce:
===================
1. move resource group which consist of LVM resource with partial_activation=true


Actual results:
===============
Resource group fails to move


Expected results:
=================
The LVM_validate_all() should check the value of OCF_RESKEY_partial_activation
before trying vgck. And the resource group moves to other node


Additional info: