For ADNR to accurately maintain the resource records that represent available sysplex resources in its managed name servers, the Advisor and all Agents in the sysplex need to be active. If the Advisor stops, ADNR can no longer receive information about the current availability of sysplex resources, and consequently, the resource records in the name servers that ADNR manages eventually become stale. That is, resource records are left in the name server representing sysplex resources that are no longer available, or resource records are not added to the name server to represent sysplex resources that have become available. Because of the ramifications of the Advisor becoming unavailable, you should perform the necessary configuration for optimal availability of the Advisor. For more information, see Step 1: Configure the Advisor and Agents to automatically restart in case of application or system failure (optional).