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Going to test for following hypervisore
  1-VMWARE
  2-KVM 
  3-XEN

UI/API check

1-Add cluster using  API addCluster

add cluster API should have new parameters  cpuovercommitratio and ramovercommitratio

UI/API check

1- Fire API UpdateOvercommitRatio with parameter cpuovercommitratio,ramovercommitratio.

response should contain " details of the updated cluster along with the overcommit ratios"

DB check

1-Logoin through UI
2-create a cluster with overcommit factor x
3-Login to DB
4-check cluster detail table

1-There should be some attribute ,which  represent overcommit factor and should have store overcommit factor for the clusters .

Addition of host to a cluster

Where host cpu overcommit capabilities<cluster cpu overcommit 

1-CS should not allow addition of host

Y

Y

Y

N

N

where host cpu overcommit capabilities >= cluster cpu overcommit

1-CS should  allow addition of host

Y

Y

Y

N

N

where host RAM overcommit capabilities<cluster RAM overcommit 

1-CS should not allow addition of host

Y

Y

Y

N

N

where host RAM overcommit capabilities >= cluster RAM overcommit

1-CS should  allow addition of host

Y

Y

Y

N

N

where host CPU and RAM overcommit capabilities<cluster CPU and RAM overcommit 

1-CS should not allow addition of host

Y

Y

Y

N

N

where host CPU and RAM overcommit capabilities >= cluster CPU andRAM overcommit

1-CS should  allow addition of host

Y

Y

Y

N

N

Where host cpu overcommit capabilities<cluster cpu overcommit

1-CS should  allow addition of host

Overcommit factor  conflict effect on vms

1-Already deployed vm should not have any effect
2-Only vm deployed here after should get deployed based on new Overcommit factor.

Y

Y

Y

N

N

Overcommit factor  conflict effect on host in cluster

where host cpu overcommit cpabilities < new cpu overcommit factor

1-host should remain in cluster, but should not be available for vm deployment

Y

Y

Y

N

N

where host cpu overcommit cpabilities >= new cpu overcommit factor

1-host should remain in cluster, but should  be available for vm deployment

Y

Y

Y

N

N

where host ram overcommit cpabilities < new ram overcommit factor

Y

Y

Y

N

N

where host ram overcommit cpabilities >= new ram overcommit factor

Y

Y

Y

N

N

where host cpu and ram overcommit cpabilities < new  cpu and ram overcommit factor

Y

Y

Y

N

N

where host CPU and RAM overcommit cpabilities >= new cpu and ram overcommit factor

Y

Y

Y

N

N

Upgrade from 4.0 to 4.1

upgrade path

1-Disable overcommit feature and do normal upgrade
2-Manually enable feature.

1- Upgrade should be successful .
2-feature should be successfully enable.