Software Manual

C.8
Bidirectional Synchronous Disaster Recovery Example
Remote Copy User’s Guide InForm OS Version 2.3.1
For a Remote Copy pair with synchronous mode volume groups, when a failure occurs (for
example InServ1 becomes unavailable) such that all links between the storage servers are
broken, after 20 seconds the system marks the sending links as Down. After another 20
seconds, the system marks the targets as failed.
The following example displays
showrcopy output on InServ2 60 seconds after InServ1 has
become unavailable:
On InServ2:
# showrcopy
Remote Copy System Information
Status: Started, Normal
Target Information
Name ID Type Status Options Policy
InServ1 2 IP failed mirror_config
Link Information
Target Node Address Status Options
InServ1 0 10.100.33.96 Down
InServ1 1 10.101.33.96 Down
receive 0 10.100.33.96 Up
receive 1 10.101.33.96 Up
Group Information
Name Target Status Role Mode Options
sync_group_1.r96 InServ1 Stopped Secondary Sync
LocalVV ID RemoteVV ID SyncStatus LastSyncTime
remotevv.0 375 localvv.0 413 Stopped Thu Dec 14 17:50:53 PST 2006
remotevv.1 376 localvv.1 414 Stopped Thu Dec 14 17:50:52 PST 2006
Name Target Status Role Mode Options
sync_group_2 InServ1 Stopped Primary Sync
LocalVV ID RemoteVV ID SyncStatus LastSyncTime
localvv.0 385 remotevv.0 423 Stopped Thu Dec 14 17:51:48 PST 2006
localvv.1 386 remotevv.1 424 Stopped Thu Dec 14 17:51:44 PST 2006