https://www.ibm.com/support/pages/qtadecrypt-dataarea-qusrsys-can-cause-go-restore-21-or-rstlib-or-dsptap-fail-cpf670b
QTADECRYPT dataarea in QUSRSYS can cause GO RESTORE 21 or RSTLIB or DSPTAP to fail with CPF670B
The QTADECRYPT dataarea in QUSRSYS causes a GO RESTORE 21 or RSTLIB or DSPTAP to fail with CPF670B and CPF4101 if the associated key file has not been restored...