For z/OS 2.4, DISK 12.5 maintenance applied:
With SYSPARM VSVERIFY set to A, running a BACKUP or ARCHIVE of an in-use data set defined with the applicable share option less than 3 results in the data set being bypassed for processing.
The following messages appear on the joblog:
IEC161I 052(013,-jobname1-)-084,-jobname2-,DMS -stepname-,VSAM,,,
IEC161I -data set name-,
IEC161I -catalog name-
...
ADSVS038 9999 ESTAE EXIT ENTERED DURING VERIFY FOR VSAM DDNAME=VSAM
ADSVS038 SYSTEM COMPLETION CODE=00C1 USER COMPLETION CODE= 0
ADSVS064 2515 THE FOLLOWING CLUSTER COULD NOT BE OPENED AFTER A
VERIFY - DATA SET BYPASSED: -data set name-
ADSVS060 0394 -data set name- WAS NOT ARCHIVED DUE TO PREVIOUS ERROR
Release : Disk Backup and Restore 12.5
Apply the PTF SO15078 to fix the problem.