Continue from our previous post, we have covered about creating recovery plan and test failover.
It’s time for us to covered the last part and the most important stuff such as
- Planned Failover
- UnPlanned Failover
Planned Failover
Process:-
- Turn off Primary Site VM
- Sending latest charges to Azure
- Decrypting VM using private key
- Creating VM and boot up according to recovery plan
Configuration – Planned Failover
1. On Recovery Plan or VM, still on FAILOVER and select Planned Failover
2. Specify failover direction from “On-Premise –> Azure” and private key
Then on the back end, you will notice that Primary Site VM is turned off and replica VM is been creating. (Take note the ip address)
- Top image – @On-premise
- Bottom image – @Azure
After replica VM is boot up, your ping result will divert to Azure IP address.
Additional actions that you can performed:-
- CHANGE Recovery Point – change other recovery point
- REVERSE Replication – change primary site or replica site. You can change primary / replica site
UnPlanned Failover
Two scenario for unplanned failover
a) Primary Site still operational
Process:-
- Shutdown Primary Site VM
- Sync latest changes to Azure
- If fails, will use latest replica changes to boot up VM according to recovery plan
b)Primary Site not operational
- Create VM on Azure
- Potential Data loss (latest data)
- Boot up VM according to recovery Plan
Configuration –Unplanned Failover
1. On the recovery plan or VM, click on FAILOVER and select Unplanned Failover
2. It will displayed failover from on-premise –> Azure
Note:- The checkbox allow you to execute Scenario “Primary Site Still Operational”
Last but not least, once complete either Planned or UnPlanned Failover, you can failback to on-premise. Failback allow you to resync data from VM at Azure to on-premise
The failback process is complete when you click COMMIT. It will shutdown the VM in Azure and delete it.
To summarize in this post, we have look into
- Planned Failover ASR
- UnPlanned Failover ASR
Do check out our previous post about Azure Site Recovery (ASR) and start your evaluation on ASR
