Administrator Guide

Old VM Storage Policy New VM Storage
Policy
Expected Behavior
Deduplication Disabled Deduplication Enabled Data Reduction Profile of associated VVols changes to Deduplication with
Compression. Data is deduplicated at the next data progression cycle.
Deduplication Enabled Deduplication Disabled Data Reduction Profile of associated VVols changes from Deduplication with
Compression to None. Data is rehydrated at the next data progression cycle.
The following table describes the expected behavior for existing VMs when a storage administrator selects or clears the Compression
and Deduplication checkboxes on a storage container.
Table 8. Expected Behavior for Compression and Deduplication Checkboxes on Storage Container
Old Checkbox Value New Checkbox Value Expected Behavior
Compression Enabled Compression Disabled Data Reduction Profile of existing volumes remains unchanged.
Compliance check warns that the VM is not compliant with storage container.
Clone/Fast Clone of VM to the same storage container follows rules of Table 5.
Expected Behavior for New VM Creation with Compression and might fail if the
VM Storage Policy is now noncompliant.
New volumes are created with the Data Reduction Profile set to None.
Compression Disabled Compression Enabled Data Reduction Profile of existing volumes remains unchanged.
Clone/Fast Clone of VM to the same storage container follows rules of Table 5.
Expected Behavior for New VM Creation with Compression and does not fail.
New volumes are created with the Data Reduction Profile according to Table 5.
Expected Behavior for New VM Creation with Compression.
Deduplication Disabled Deduplication Enabled
Data Reduction Profile of existing volumes remains unchanged.
Clone/Fast Clone of VM to the same storage container follows rules of Table 6.
Expected Behavior for New VM Creation with Deduplication and does not fail.
New volumes are created with the Data Reduction Profile according to Table 6.
Expected Behavior for New VM Creation with Deduplication.
Deduplication Enabled Deduplication Disabled
Data Reduction Profile of existing VVols remains unchanged.
Compliance check warns that the VM is not compliant with the storage
container.
Clone/Fast Clone of VM to the same storage container follows rules of Table 6.
Expected Behavior for New VM Creation with Deduplication and might fail if the
VM Storage Policy is now noncompliant.
New volumes are created with the Data Reduction Profile based on Table 5.
Expected Behavior for New VM Creation with Compression if Compression is
enabled or with the Data Reduction Profile set to None.
The following table describes the expected behavior for datastores related to migration.
Table 9. Expected Behavior Related to Migration
Source Datastore Destination Datastore Expected Behavior
Storage Container Deduplication =
Supported
Storage Container Deduplication
= Supported
Destination VM Storage Policy =
Deduplication Enabled
Migration succeeds. The volume on the
destination is created with the
Deduplication with Compression Data
Reduction Profile.
Storage Container Deduplication =
Supported
Storage Container Deduplication = Not
Supported
Destination VM Storage Policy =
Deduplication Enabled
Migration fails because the source VM
Storage Policy is invalid on the destination.
Storage Center Administration 69