How to Detect Data Replication Errors

1. Check the status of the replication resources by using the clresource status command.

   # clresource status -v sc_geo_dr-SRDF-protection-group-device-group

   For information about how different Resource status values map to actual replication pair states, see Table 3–1.

   Running the clresource status command might return the following:

   …
   -- Resources --
   
   Resource Name                                Node Name     State     Status Message
   -------------                                ---------     -----     --------------
   Resource: sc_geo_dr-SRDF-srdfpg-devgroup1  pemc1         Online    Online - Partitioned
   Resource: sc_geo_dr-SRDF-srdfpg-devgroup1  pemc2         Offline   Offline
   …

2. Display the aggregate resource status for all device groups in the protection group by using the geoadm status command.

   For example, the output of the clresource status command in the preceding example indicates that the SRDF device group, devgroup1, is in the Suspended state on cluster-paris. Table 3–1 indicates that the Suspended state corresponds to a resource status of FAULTED. So, the data replication state of the protection group is also FAULTED. This state is reflected in the output of the geoadm status command, which displays the state of the protection group as Error.

   phys-paris-1# geoadm status
   Cluster: cluster-paris
   
   Partnership "paris-newyork-ps"  : OK
   Partner clusters             : cluster-newyork
   Synchronization              : OK
   ICRM Connection              : OK
   
   Heartbeat "paris-to-newyork" monitoring "cluster-newyork": OK
   Heartbeat plug-in "ping_plugin"             : Inactive
   Heartbeat plug-in "tcp_udp_plugin"          : OK
   
   Protection group "srdfpg"   : Error
   Partnership         : paris-newyork-ps
   Synchronization     : OK
   
   Cluster cluster-paris    : Error
   Role                  : Primary
   PG activation state   : Activated
   Configuration         : OK
   Data replication      : Error
   Resource groups       : OK
   
   Cluster cluster-newyork  : Error
   Role                  : Secondary
   PG activation state   : Activated
   Configuration         : OK
   Data replication      : Error
   Resource groups       : OK