Description of problem:

VDSM - SpmStart command fails for the first time when switching SPM

Version-Release number of selected component (if applicable):
VDSM Version: vdsm-4.9-63.el6.x86_64

How reproducible:
Always

Steps to Reproduce:
1. 2 Hosts [RHEL6.1] in the same cluster, 1 is SPM 
2. Attempt to maintenance the SPM Host.
  
Actual results:

SpmStart command fails on SpmParamsMismatch, the react for the User will be:

The second host switch it's status from None to Contending --> SPM --> Contending -->SPM



0e08074f-27c9-4a77-9c15-fc1bea4930df::ERROR::2011-05-02 11:32:04,168::task::855::TaskManager.Task::(_setError) Unexpected error
Traceback (most recent call last):
  File "/usr/share/vdsm/storage/task.py", line 863, in _run
    return fn(*args, **kargs)
  File "/usr/share/vdsm/storage/task.py", line 300, in run
    return self.cmd(*self.argslist, **self.argsdict)
  File "/usr/share/vdsm/storage/spm.py", line 503, in start
    raise se.SpmParamsMismatch(oldlver, oldid, prevLVER, prevID)
SpmParamsMismatch: Pool previous lver/id don't match request: 'expected previd:-1 lver:33 got request for previd:2 lver:33'
0e08074f-27c9-4a77-9c15-fc1bea4930df::DEBUG::2011-05-02 11:32:04,169::task::492::TaskManager.Task::(_debug) Task 0e08074f-27c9-4a77-9c15-fc1bea4930df: Task._run: 0e08074f-27c9-4a77-9c15-fc1bea4930df () {} failed -
 stopping task


Expected results:

SPMStart command should succeeded @ the first time.

Additional info:

** Please see attached VDSM.log