Veritas Volume Replication - VVR - commands

To see primary and secondary replicated data set (RDS) details

    vradmin printvol
    vradmin -l printrvg

To see replication status

    vradmin -g dg_name -l repstatus rvg_name

To check free space in a DG

    vxdg -g dg_name free

To see basic RVG configuration including RVG roles and states, rlink names and states, data/srl volume names and states

    vxprint –ht 
    vxprint -Pl
   
To see current status of the rlink  - what mode its currently in, and how much data is currently being logged for the rlink (run on a primary node)

    vxrlink -g disk_group status rlink_name

To see how many messages secondary RVG is behind the primary (run on secondary)

    vxrlink -g disk_group -T updates rlink_name

To see extended statistics for the rlink such as how many blocks have been sent over the network, the round trip time, the current replication speed, any errors etc.

    vxrlink -g disk_group stats rlink_name


To displaying port numbers (ports should be identical on primary and secondary)

    /usr/sbin/vrport


To change port numbers (values stored persistently in /etc/vx/vvrports. Restart affected daemon)

    /usr/sbin/vrport daemon new_port_number 


To recover from SRL Overflow (dcm_logging flag shown on primary rlink). Performing a DCM replay will set rlinks to inconsistent until the replay is complete. As such good practice would be to create snapshots of data volumes on the secondary node before starting the replay (hence the cache/cachesize attributes for the vradmin resync command).

    vxrvg –g disk_group resync rvg_name   OR

    vradmin –g disk_group resync rvg_name [cache=cache_object|cachesize=size]