CBR5865I Seek error on volume volser in drive drive-name.
Explanation
An I/O error has occurred on optical disk drive drive-name. The optical disk drive returned a fault code of X'21', indicating the LaserDrive 1200 is unable to perform a required seek to a given track on volume volser.
System action
The I/O operation is stopped.
System programmer response
For information on optical drive fault codes, consult LASERDRIVE** 1200 Engineering Specification. If the problem recurs and if the program is not in error, search problem reporting databases for a fix for the problem. If no fix exists, contact the IBM® Support Center. Obtain the logrec data set error record.
Source
Object Access Method (OAM)
Routing Code
4
Descriptor Code
4