Using Bidirectional Replication for Disaster Recovery › Use cacloud vol_mkdir to Define VOLSER Ranges to Linux Systems

Use cacloud vol_mkdir to Define VOLSER Ranges to Linux Systems

Now that the NFS exports are mounted, issue the CA Cloud Storage for System z Linux command to define VOLSER ranges to the mount points on each of the Linux Systems.

Follow these steps:

1. On the PDC Linux system, issue the following command to define the VOLSER range directory and create a soft link to the mount point:

   sudo cacloud vol_mkdir mp_21/vv_p00
   

2. On the DRC Linux system, issue the following command to define the VOLSER range directory and create a soft link to the mount point:

   sudo cacloud vol_mkdir mp_31/vv_d00
   

3. On both systems, issue the following CA Cloud Storage for System z Linux command:

   sudo cacloud vol_mkdir --fix
   

   Note: The EMC Data Domain MTree replication uses periodic point-in-time snapshots to replicate changes between appliances. This technique is designed to reduce discrepancies in disk changes. However, because transfers occur periodically, the source and target appliances can become asynchronous between replications.