Sun Cluster Geographic Edition Data Replication Guide for EMC Symmetrix Remote Data Facility

ProcedureHow 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