There are instances of View on multiple LPARs.
When running a View backup cycle, for the first time on an LPAR, these messages were displayed
SARBKT00 Standard backup cycle started for Gen 1
SARBKT61 Standard backup cycle starting phase 1
SARTPO42 Device allocation error - ERR=9700, INFO=0000
SARTPO42 DSNAME=STC1.CAVIEWXX.SARTAPE.T0000001
SARTPO42 Reply Y/N to continue processing with new tape
There was a security error, but no error message had been produced. There was an ACF2 rule set up to protect the SMS storage class incorrectly.
Batch jobs (JOB) could run with the rule as it was, but started tasks (STC) received an error.
After the security group fixed the ACF2 rule, tapes could then be mounted with SARSTC with no problems.