Page History

This feature  is implemented for following hypervisor  
  1-VMWARE
  2-KVM 
  3-XEN

1

UI/API check

1-Add cluster using  API addCluster

add cluster API should have new parameters  cpuovercommitratio and ramovercommitratio

P0

Y

2

UI/API check

1- update commit ratio using API UpdateOvercommitRatio with parameter cpuovercommitratio,ramovercommitratio.

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

P0

Y

3

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 .

P0

Y

Addition of host to a cluster

1-Login through UI
2-Add a cluster with
overcommit  factor         resource
     x                              CPU
     y                              RAM.

3-Prepare a Host having
overcommit capability     Resource
      c                              CPU
      r                               RAM

4

Where host cpu overcommit capabilities<cluster cpu overcommit  factore and
RAM overcommit capabilities < cluster RAM overcommit factore

4--Add  host to cluster where c <x  and  r<y

1-CS should not allow addition of host

P0

Functional

Y

Y

Y

Y

N

N

5

Where host cpu overcommit capabilities<cluster cpu overcommit  factore and
RAM overcommit capabilities > cluster RAM overcommit factore

4-Add host to cluster where c <x and r>y

1-CS should  not allow addition of host

P0

Functional

Y

Y

Y

Y

N

N

6

Where host cpu overcommit capabilities<cluster cpu overcommit  factore and
RAM overcommit capabilities =cluster RAM overcommit factore

4-Add host to cluster  where c<x and r=y

1-CS should not allow addition of host

P0

Functional

Y

Y

Y

Y

N

N

7 6

Where host cpu overcommit capabilities>cluster cpu overcommit  factore and
RAM overcommit capabilities < cluster RAM overcommit factore

4-Add a host to cluster  where c>x and r<y

1-CS should  not llow addition of host

P0

Functional

Y

Y

Y

Y

N

N

8 7

Where host cpu overcommit capabilities>cluster cpu overcommit  factore and
RAM overcommit capabilities > cluster RAM overcommit factore

4-Add a host to cluster  where c >x and r>y

1-CS should  allow addition of host

P0

Functional

Y

Y

Y

Y

N

N

9 8

Where host cpu overcommit capabilities>cluster cpu overcommit  factore and
RAM overcommit capabilities = cluster RAM overcommit factore

4-Add host to cluster where c>x and r=y

1-CS should  allow addition of host

P0

Functional

Y

Y

Y

Y

N

N

10 9

Where host cpu overcommit capabilities=cluster cpu overcommit  factore and
RAM overcommit capabilities < cluster RAM overcommit factore

4-Add host to cluster where c=x and r<y

1-CS should  not allow addition of host

P0

Functional

Y

Y

Y

Y

N

N

10 11

Where host cpu overcommit capabilities=cluster cpu overcommit  factore and
RAM overcommit capabilities >cluster RAM overcommit factore

4-Add host to cluster where c=x and r>y

1-CS should allow addition of host

P0

Functional

Y

Y

Y

Y

N

N

11 12

Where host cpu overcommit capabilities=cluster cpu overcommit  factore and
RAM overcommit capabilities =cluster RAM overcommit factore

4-Add host to cluster where c=x and r=y

1-CS should allow addition of host

P0

Functional

Y

Y

Y

Y

N

N

Overcommit factor  conflict effect on vms

1-Login Through UI
2-Create a cluster with overcommit ratio x
3-Deploy a vm
4-Change overcommit ratio to y

12 13

5-when y<x and there is no(less than required) resource left in cluster according to new overcommit ratio
6-Deploy a  vm.

1-VM deployed in step 3 should not have any effect of y 
2-step 6  should fail  for both CPU and RAM

P0

Functional

Y

Y

Y

Y

N

N

13 14

5-when y<x and there is enough resource left in cluster according to new overcommit ratio
6-Deploy a  vm.

1-VM deployed in step 3 should not have any effect of y 
2-step 6  should be successful for both CPU and RAM

P0

Functional

Y

Y

Y

Y

N

N

14 15

5-when y>x and there is enough resource left in cluster according to new overcommit ratio
6-Deploy a  vm.

1-VM deployed in step 3 should not have any effect of y
2-step 6  should be successful for both CPU and RAM

P0

Functional

Y

Y

Y

Y

N

N

15 16

5-when y>x and there is not enouh resource left in cluster according to new overcommit ratio
6-Deploy a  vm.

1-VM deployed in step 3 should not have any effect of y
2-step 6  should fail for both CPU and RAM

P0

Functional

Y

Y

Y

Y

N

N

Overcommit factor  conflict effect on host in cluster

1-Login through UI
2-Add a cluster with
overcommit  factor         resource
     x                              CPU
     y                              RAM.

3-Any Host (already in cluster) having
overcommit capability     Resource
      c                              CPU
      r                               RAM

17 16

where host cpu overcommit capabilities < updated cpu overcommit factor and
host ram overcommit capabilities < updated ram overcommit factor

when c<x and r<y

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

Functional

Y

Y

Y

Y

N

N

18 17

where host cpu overcommit capabilities < updated cpu overcommit factor and
host ram overcommit capabilities > updated ram overcommit factor

when c<x and r>y

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

P0

Functional

Y

Y

Y

Y

N

N

19 18

where host cpu overcommit capabilities < updated cpu overcommit factor and
host ram overcommit capabilities = updated ram overcommit factor

when c<x and r=y

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

P0

Functional

Y

Y

Y

Y

N

N

20 19

where host cpu overcommit capabilities > updated cpu overcommit factor and
host ram overcommit capabilities < updated ram overcommit factor

when c>x and r<y

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

P0

Functional

Y

Y

Y

Y

N

N

20 21

where host cpu overcommit capabilities > updated cpu overcommit factor and
host ram overcommit capabilities > updated ram overcommit factor

when c>x and r>y

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

P0

Functional

Y

Y

Y

Y

N

N

21 22

where host cpu overcommit capabilities > updated cpu overcommit factor and
host ram overcommit capabilities = updated ram overcommit factor

when c>x and r=y

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

P0

Functional

Y

Y

Y

Y

N

N

22 23

where host cpu overcommit capabilities = updated cpu overcommit factor and
host ram overcommit capabilities < updated ram overcommit factor

when c=x and r<y

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

P0

Functional

Y

Y

Y

Y

N

N

23 24

where host cpu overcommit capabilities = updated cpu overcommit factor and
host ram overcommit capabilities > updated ram overcommit factor

when c=x and r>y

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

P0

Functional

Y

Y

Y

Y

N

N

24 25

where host cpu overcommit capabilities = updated cpu overcommit factor and
host ram overcommit capabilities = updated ram overcommit factor

when c=x and r=y

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

P0

Functional

Y

Y

Y

Y

N

N

Upgrade from 4.0 to 4.1

25 26

upgrade path

Pre upgrade steps
1-Deploy  some vms
2-Have some snapshot and template

Post upgrade steps
1-add cluster with overcommit factor x
2-Deploy a vm  where required resource for vm <= resource available in cluster according to overcommit factor
3-Deploy a vm where required resource for vm > resource available in cluster according to overcommit factor

1- Upgrade should be successful .
2-Check cluster detail table it should have some attribute to store overcommit factor for cluster.
3-in postupgrade step-2 vm should get deployed successfully .
4- In postupgrade step-3 vm deployment should fail. 

Upgrade

Y

Y

Y

Y

N

N

Effect of contention on vms

27 26

CPU contention

VM should get assigne to CPU=(CPU define in SO/CPU overcommit factor)

P1

Functional

Y

Y

Y

Y

N

N

28 27

RAM contention

VM should get assigne to RAM=(RAM define in SO/RAM overcommit factor)

P1

Functional

Y

Y

Y

Y

N

N

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29 28

CPU and RAM contention

VM should get assigne to (CPU/RAM)=[(CPU/RAM) define in SO/(CPU/RAM) overcommit factor]

P1

Functional

Y

Y

Y

Y

N

N

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30 29

Dash board resource display

physical availability or logical(in case of overcommit)

yet to decide

P2

Functional