Using the Optical Disk Interface › Optical Disk Database Maintenance › Only MERGE Moves Optical Disk Data

Only MERGE Moves Optical Disk Data

The MERGE function should be used for reloading the actual SYSOUT data from secondary disk storage. The COPY and LOAD functions copy the index information about the SYSOUT groups on secondary disk storage. In other words, COPY and LOAD merely transfer ownership of the secondary disk storage data that is already archived, while the MERGE actually reloads the data to another optical disk data set.

In addition to merging multiple databases together, you can use the merge function to replace one type of secondary disk device with another, to consolidate the archived secondary disk storage, and to replace secondary disk storage with primary disk.