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Using continues replication for a number of VM”s. Some TB’s large. Question is this.

When a failover is done. Does it take up double the space? Like is a whole additional VM created and the ‘replicated’ VM still existing in VMWare? 

Example: Live Syncing 1TB VM.

-Failover-

Do know hove 2TB of space used on the datastore?

Hello @SSSSSSSSSSSSSSSSSSSSSSSSSSSSSS 

Thanks for the great question!
The following goes over how to plan a fail over test and the impact of it:
https://documentation.commvault.com/2023e/essential/performing_planned_failover_for_continuous_replication_pair.html

In this documentation it states the following: 


Result

  • The source VM is turned off.

  • Operations move to the destination VM.

  • If errors occur during a planned failover, the job fails and the source VM is powered off. You must power on the source VM manually, and then perform a resume operation.


The VM will not be duplicated at all, all the replications into the standby have been performed already and when fail over occurs it just redirects it all for you. 

I hope this answers your question!

Kind regards

Albert Williams

Thank you Albert. The document does answer the question's for a planned or unplanned failover. For a test failover however, it does not say but I assume it is ‘cloning’ the VM and therefore temporarily taking up the double the space during the test.

 

Thanks again.

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