Pair and pair volumes planning

When planning for a replication configuration that includes Universal Replicator for Mainframe pair volumes, make sure that you are familiar with the following information:

• Pair volume requirements and recommendations
• Precautions for duplicate VOLSERs
• Allowing I/O to the S-VOL
• Allowing I/O to the P-VOL after a split: Fence Level options
• Differential data