CMMVC8478E: The mapping cannot be removed because the volume being unmapped has received I/O within the defined volume protection period.

Explanation

The unmapping command has not been run because the system has determined that I/O have been received within the system defined protection period. This generally indicates that the volume is in use.

User Response

  1. Make sure this volume is intended to be unmapped. If the wrong one was selected, repeat the command with the correct volume.
  2. Otherwise, if you are sure that you want to unmap this volume, wait the time that is specified in the vdisk_protection_time field (see Issystem), and retry the command.
  3. Alternatively, if you don't want to have volume protection warnings, then you can disable the vdisk_protection-enabled field by using chsystem.