DSNU1403I `csect-name` - `copy-type` DATA SET `dsn` WITH START_RBA `rba` IS IN USE BY COPYTOCOPY FOR `obj-type` `obj-qual.obj-name` DSNUM `n`

Explanation

The COPYTOCOPY utility issues this message before it opens an image copy data set and begins the copying process.

System action

COPYTOCOPY processing continues.

Severity

0 (informational)