Hi,
We have a planned power outage in one of the data centers and we need to gracefully shutdown our services then power it up back again after some time.
We have:
1. EMC storage
2. Two-nodes Windows Server 2012 R2 Hyper-V Cluster: Guests VMs are two domain controllers, four exchange 2013 VMs, File server and some other services...
My plan is the below:
Downtime:
1. Shutdown all non-domain controllers VMs like Exchange, file servers, etc...
2. Shutdown Hyper-V node #2
3. While the two DCs are still running, shutdown Hyper-V node #1 (this makes sure the two DCs will be up when powering up later Hyper-V node #1)
4. Shutdown EMC storage
5. Shutdown network devices (routers, switches)
Power Up:
1. Power up network devices
2. Power up EMC storage
3. Power up Hyper-V node #1 (make sure login to domain and clustering is working as DCs should be up as well on that node)
4. Power up Hyper-V node #2
5. Power up all non-domain controllers VMs like Exchange, file servers, etc...
Do you think this is a valid approach? Please amend\update if necessary.