Cisco Catalyst Centre DR Failover

[Toy Thompson]

I want to do failover testing this weekend of the Cisco Catalyst Centre DR. We will initiate a manual failover. According to the "Cisco Catalyst Center Administrator Guide, Release 2.3.7.x" Step 4:
Reconnect the main and recovery sites and reconfigure your disaster recovery system:
a. Log in to your recovery site.
b. In the Action area, click Rejoin.
A dialog opens, indicating that data on the standby site will be erased.

Why does it erase the data of the "Standby Site"?

Do the document refer to the Main Site in Standby Ready mode as the "Standby Site"

Do you need to rebuild the active/standby sites every time you initiate a failover manually

Does the Cisco Catalyst Centre follow the same methodology when a automatic failover is initiated because of a site failure

[maflesch · Accepted solution]

Standby refers to any site that is not the current active. To be clear, the terminology is as followed:

- Main site : First primary site that DR is configured on
- Recovery site : Backup site created for DR operations
- Active site : Whatever site that is now in charge of all operations when DR is running
- Standby site : Whatever site that is now in a passive state while DR is running

At any point the main site can be the standby site and the recovery site can be the active. What the message is stating is that when you click re-join, any data that was written to the standby site while that site was isolated, will be erased. Then all the data that is on the active site, will be replicated over to the standby site.