When Installing z/OSMF which keystore.type is supported by TSS:
Release : 16.0
Component : CA Top Secret for z/OS
The keystore type supported by each application varies from application to application.
The keystore type required by Top Secret is the keystore type that uses SAF calls to read certificates and keyrings from the external security manager like Top Secret, ACF2 and RACF.
Please consult your products documentation to determine the keystore type required to use SAF calls.
For z/OSMF 'JCERACFKS' is the keystore type that uses SAF calls to retrieve certificates from the external security manager like Top Secret, ACF2 and RACF.