CBR1720I Optical active sum:

Explanation
  ----- OPTICAL REQUESTS CURRENTLY BEING PROCESSED -----
 READS  WRITES DELETES  ENTERS  EJECTS  AUDITS LABELS
aaaaaa  bbbbbb  cccccc  dddddd  eeeeee  ffffff gggggg

 The
operator has entered one of the following commands:  MODIFY OAM,QUERY,ACTIVE
MODIFY OAM,QUERY,ACTIVE,SUMMARY
 A display of optical work
requests currently being processed by the OAM address space is generated.
The fields displayed in the data line of the multi-line message are
as follows:  aaaaaa
Total number of object read requests from an optical volume currently
being processed. This includes read requests being processed on this
system that originated from another instance of OAM in an OAMplex.
bbbbbb
Total number of object write requests to an optical volume currently
being processed. This includes write requests being processed on this
system that originated from another instance of OAM in an OAMplex.
cccccc
Total number of object delete requests from an optical volume
currently being processed.
dddddd
Total number of optical volume enter requests currently being
processed.
eeeeee
Total number of optical volume eject requests currently being
processed. This number also includes system initiated ejects.
ffffff
Total number of optical volume audit requests currently being
processed.
gggggg
Total number of optical cartridge label requests currently being
processed.

 Note: All counts above are a snapshot in time
count and the numbers can change quickly.

Source
 Object Access Method (OAM)

Routing Code
 -

Descriptor Code
 5,8,9