HYDIN0156I (OP0156) Physical volume VOLSER is near the End of Life Threshold.
Explanation
During a dismount operation, the TS7700 Engine encountered a media condition report indicating that the media of the stacked volume is near the reached End of Life and will eventually reach the End of Life where it can no longer be used for writing data. This message is posted as a way to assist the operator to plan for the replacement of this tape cartridge at a later time when it has reached the End of Life.
Operator response
This is just an informational message to assist in tape capacity planning. No operator action is needed other than planning for the future replacement of the tape cartridge by inserting a new tape cartridge at a later time.