There are many:
"CAKSSERV - Signon/Signoff Server is Active"
messages that appear throughout the day in the CICS log.
What does that mean? And what is the impact?
At CICS startup, CA Top Secret allocates a minimum of 5 sign-on servers to process sign-ons.
During heavy signon activity, CA Top Secret allocates more, if needed. It returns to the minimum of 5 signon-servers, once the sign-on demand decreases.
At first, you will see the message 5 times in the CICS log, one per server allocated.
Depending on sign-on activity throughout the day, the message may appear several more times throughout the day.
There really is not any impact to CICS. It's just an informational message.