The first thing that you will need to do is to make sure that your array is supported by VMware and licensed for array replication by the array vendor. Array Replication is a licensed feature from the storage vendor.
Now, to enable replication, you have a couple of approaches that you can employ:
Approach-1 |
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Approach-2 |
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Approach-1: This is used in scenarios where the array does not have the spare capacity to provision a separate LUN for host-protected VMs. This approach adds an administrative overhead if the VMs are spread across multiple datastores. It also contributes to the wastage of replication bandwidth and storage space, since the LUNs that are replicated will also contain unprotected VM data.
Approach-2: This is used in scenarios where you have ample spare capacity. This approach is the best as it reduces the complexity and avoids the wastage of replication bandwidth and space, unlike Approach-1. However, this approach will have an impact on the size of the LUNs required at both the protected and replication sites.