Cause: If one of the IPA servers is down then clients enrollment may fail.
Consequence: client enrollment is unpredictable if one of the IPA servers is down.
Fix: Do not configure sssd on an IPA server to do failover. A running server may be configured to use services on another that is down.
Result: sssd is predictable on an IPA server. When the IPA services are running then sssd is available.