3PAR Remote Copy 2.3.1 User's Guide (320-200175 Rev A, October 2009)

C.43
Synchronous Long Distance Remote Copy Disaster Recovery Example
InForm OS Version 2.3.1 Remote Copy User’s Guide
C.5.1 Synchronous Backup Server Assumes Role of Primary Server
In this scenario, the primary server has gone down and the synchronous backup server is put
into failover mode to assume the role of the primary server.
Figure C-8. Synchronous Periodic Server Assumes the Role of the Primary Server
When InServA goes down, issuing showrcopy on the backup servers InServB and InServC
appears as follows:
InServA InServB
InServC
(primary)
(primary)
(backup)
Asynchronous
Periodic