HP A7533A HP StorageWorks Fabric OS 6.1.1 administrator guide (5697-0235, Dece - Page 55

High Availability of daemon processes Fabric OS 6.x supports automatic restart of non-critical daemons. Starting these non-critical daemons is automatic, you cannot configure the startup process. The following sequence of events occurs when a non-critical daemon fails: 1. When a non-critical daemon fails or dies, a RASLog and AUDIT event message is logged. 2. The daemon is automatically started again. 3. If the restart is successful, another message is sent to RASLog and AUDIT reporting the successful restart status. 4. If the restart fails, another message is sent to RASLog and no further attempts are made to restart the daemon. Schedule downtime and reboot the switch at your convenience. Table 6 lists the daemons that are considered non-critical and are automatically restarted on failure. Table 6 Daemons that are automatically restarted Daemon Description Arrd Cald Evmd Raslogd Rpcd Snmpd Traced Trackd Webd Asynchronous Response Router (used to send management data to hosts when the switch is accessed through the APIs (FA API or SMI-S). Common Access Layer Daemon (used by Manageability Applications). Event Monitor Daemon (used by port and switch SCNs, firmwareDownload, and configDownload) Remote Access Service Log Daemon logs error detection, reporting, handling, and presentation of data into a format readable by management tools and the user. Remote Procedure Call daemon used by the API (Fabric Access API and SMI-S). Simple Network Management Protocol Daemon. Trace Daemon. Provides trace entry date/time translation to Trace Device at startup and when date/time changed by command. Maintains the trace dump trigger parameters in a Trace Device. Performs the trace Background Dump, trace automatic FTP, and FTP "aliveness check" if auto-FTP is enabled. Track Changes Daemon. Webserver daemon used for Web Tools (includes httpd as well). Fabric OS 6.1.1 administrator guide 55