Updated Branches:
  refs/heads/master 0ec6b9ac9 -> 40a783932

CLOUDSTACK-5061 - Cloudstack doesn't consider storage overprovisioning factor 
when using thin Provisioning over VMWare VMFS datastores

Fix is use the storage overprovisioning factor (global configuration parameter 
"storage.overprovisioning.factor") to calculate total provisioning capacity for 
storage space allocation over VMFS based storage pools as well.
There are two level of thin provisioning provided in VMware, storage level and 
file-level (VMDK) thin provisioning. in CloudStack, all volumes are provisioned 
with thin VMDK format, so at hypervisor level, we ALWAYS do thin provisioning. 
If storage vendor has the ability to provide storage level thin provisioning in 
addition to VMDK thin provisioning, it is also allowed since it is transparent 
to Cloudstack.

Signed-off-by: Sateesh Chodapuneedi <[email protected]>


Project: http://git-wip-us.apache.org/repos/asf/cloudstack/repo
Commit: http://git-wip-us.apache.org/repos/asf/cloudstack/commit/40a78393
Tree: http://git-wip-us.apache.org/repos/asf/cloudstack/tree/40a78393
Diff: http://git-wip-us.apache.org/repos/asf/cloudstack/diff/40a78393

Branch: refs/heads/master
Commit: 40a78393235f44bb0f96b8055fc11139c8866915
Parents: 0ec6b9a
Author: Sateesh Chodapuneedi <[email protected]>
Authored: Wed Nov 6 17:37:22 2013 +0530
Committer: Sateesh Chodapuneedi <[email protected]>
Committed: Wed Nov 6 17:47:40 2013 +0530

----------------------------------------------------------------------
 .../src/com/cloud/storage/StorageManagerImpl.java  | 17 ++++-------------
 1 file changed, 4 insertions(+), 13 deletions(-)
----------------------------------------------------------------------


http://git-wip-us.apache.org/repos/asf/cloudstack/blob/40a78393/server/src/com/cloud/storage/StorageManagerImpl.java
----------------------------------------------------------------------
diff --git a/server/src/com/cloud/storage/StorageManagerImpl.java 
b/server/src/com/cloud/storage/StorageManagerImpl.java
index a301639..e42d871 100755
--- a/server/src/com/cloud/storage/StorageManagerImpl.java
+++ b/server/src/com/cloud/storage/StorageManagerImpl.java
@@ -875,19 +875,10 @@ public class StorageManagerImpl extends ManagerBase 
implements StorageManager, C
         List<CapacityVO> capacities = _capacityDao.search(capacitySC, null);
 
         long totalOverProvCapacity;
-        if (storagePool.getPoolType() == StoragePoolType.NetworkFilesystem) {
+        if (storagePool.getPoolType() == StoragePoolType.NetworkFilesystem || 
storagePool.getPoolType() == StoragePoolType.VMFS) {
             BigDecimal overProvFactor = 
getStorageOverProvisioningFactor(storagePool.getDataCenterId());
-            totalOverProvCapacity = overProvFactor.multiply(new 
BigDecimal(storagePool.getCapacityBytes())).longValue();// All
-            // this
-            // for
-            // the
-            // inaccuracy
-            // of
-            // floats
-            // for
-            // big
-            // number
-            // multiplication.
+            totalOverProvCapacity = overProvFactor.multiply(new 
BigDecimal(storagePool.getCapacityBytes())).longValue();
+            // All this is for the inaccuracy of floats for big number 
multiplication.
         } else {
             totalOverProvCapacity = storagePool.getCapacityBytes();
         }
@@ -1596,7 +1587,7 @@ public class StorageManagerImpl extends ManagerBase 
implements StorageManager, C
         }
 
         long totalOverProvCapacity;
-        if (pool.getPoolType() == StoragePoolType.NetworkFilesystem) {
+        if (pool.getPoolType() == StoragePoolType.NetworkFilesystem || 
pool.getPoolType() == StoragePoolType.VMFS) {
             totalOverProvCapacity = 
getStorageOverProvisioningFactor(pool.getDataCenterId()).multiply(new 
BigDecimal(pool.getCapacityBytes()))
                     .longValue();
         } else {

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