Using Bidirectional Replication for Disaster Recovery › Bidirectional Replication Configuration

Bidirectional Replication Configuration

You begin by isolating the VOLSER ranges that each CA Vtape VTS complex use. You want each complex to read volumes that the other complex creates. For ease of identification each complex uses a separate and unique VOLSER range.

In the CA Vtape VTS parameter library, you:

• Define the VOLSER ranges in a pool.
• Define the pool name to a group number.
• Define the group number in a data set name or SMS data class filter.

When a scratch mount is requested, the matching filter determines the group policy. The group policy contains the pool name, which controls the volser range that is used for the scratch mount.

The VOL_MKDIR command lets you associate volser ranges with mount points and defines which volumes are placed on which mount points. Through FSTAB on Linux, you define what those mount points are.