CBR3717I LIBSERV indicated that the total number of queued eject requests has reached its limit.

Explanation
 The asynchronous operations manager (AOM) LIBSERV
service returned a failure indicating that the total number of queued
eject requests (across all connected libraries) is at its 1600 limit.

System action
 The eject request fails.

System programmer response
 Resubmit the eject request after
some of the currently queued requests have completed.

Source
 Object Access Method (OAM)

Routing Code
 2,3,5

Descriptor Code
 4