How to Detect Data Replication Errors

1. Check the status of the replication resources by using the scstat -g command.

   # clresource status -v sc_geo_dr-SRDF-protectiongroupname-srdf dgname

   For information about how different Resource status values map to actual replication pair states, see Table 2–4.

   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 EMC Symmetrix Remote Data Facility device group, devgroup1, is in the Suspended state on cluster-paris. Table 2–4 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