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Software Development Kit (SDK) and API Discussions
Create a thin or thick snapshot as per user requirement via CIM method invocation using "CreateElementReplica" of CIM_ReplicationService.
If the 'SourceElement' property (input parameter) is a thick volume then the 'TargetElement' property (output parameter) contains a thick snapshot.
If the 'SourceElement' property (input parameter) is a thin volume then the 'TargetElement' property (output parameter) contains a thin snapshot.
We are not able to create a thin snapshot from a thick source volume and vice versa using CIM call (CreateElementReplica).
Is there a way to make the array honor this requirement via the CIM call (CreateElementReplica)?
How to enable Netapp Provider logs and/or get access to them (not trace/error logs of Netapp SMIS provider)?
CreateElementReplica contains the property "ReplicationSettingData" which can be used by the user to control the provisioning of the target element. We have enumerated the ONTAP_ReplicationSettingData class which is a single instance on the array. We converted the CIMInstance into a CIMObject and passed the CIMObject as a string. We modified the default property "ThinProvisioningPolicy" in the string from 7 (Implementation decides provisioning of target) to 3 (Copy thin source to full target) and 4 (Copy full source to thin target) respectively where the source volume was thin/thick. Even though the response was success, this was not honored by the array and we get the same behavior as mentioned in the 'Behavior' section.
If the target element is not supplied, this property specifies the provisioning of the target element.
If provided, it overrides the default replication setting data for the given SyncType. If not provided, the management server uses the default replication setting data.