To run SOLVE:Operations without Health checks.
If you issue this command on a SOLVE region it will show the storage used every hour (note the full stop after the 1, without that the default is to assume minutes and that will produce too much log output):
SUB BSYS EVERY 1. KEEP=SYS CMD=SH BUFF
You could put it in the NMREADY member so it gets executed at start-up and will be there even if the region is recycled.
If the log is then in a file that can be viewed with ISPF edit it's easy to issue:
X ALL;F ALL N11910
to see the total storage messages together.