Intel Server Board S1200BT - PROconsult Data A/S

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Platform Management Intel® Server Board S1200BT TPS Task Capabilities & Features 2.0 Avoid Triggering HW Protection Interfaces Reduce power consumption to prevent tripping DC circuit breaker Power supply optimization technologies (SmaRT & CLST) used to limit power consumption to reduce demand on power supplies in specific scenarios. IPMI-based commands over SMBus (monitoring, control & alert) PECI Proxy and Pass-Through (this feature is also available on the ME Si-Enabling firmware) Power telemetry from Integrated BMC or from PMBus-compliant power supplies Note: EPSD systems have ME get power data directly from power supplies 4.4.3 Role of Integrated BMC in NM This section summarizes the Integrated BMC role in the NM feature implementation. 4.4.3.1 External Communications Link The Integrated BMC provides the access point for remote commands from external management software and generates alerts to that software. The ME plays the role of an IPMI satellite controller that communicates to the Integrated BMC over a secondary IPMB. There are mechanisms to forward commands to ME and send response back to originator. Similarly events generated by ME to the Integrated BMC (via IPMB) have to be sent by the Integrated BMC to the external software over the LAN link. It is the responsibility of Integrated BMC to implement these mechanisms for communication with Node Manager (NM). 4.4.3.1.1 Command Passing Via Integrated BMC External software wishing to communicate with the NM will send ‗bridged‘ IPMI commands to Integrated BMC. This will be in the form an IPMI packet encapsulated in another packet, following standard IPMI bridging as described in the IPMI 2.0 Specification. Integrated BMC forwards the encapsulated command it to NM engine on the ME and returns the response to the sender. Due to the fact that some of the NM commands have potential for performance limiting and system shut-down, the Integrated BMC firmware enforce an administrator privilege for any commands bridged to the ME. 4.4.3.1.2 Alerting Alerts may be sent from the NM in the ME to the external software by one of two different methods depending on the nature of the alert. Alerts that signify fault conditions that should be recorded in the system SEL will be sent to the Integrated BMC by the ME using the IPMI Platform Event Message command. The Integrated BMC deposits such events into the SEL. The external software must configure the Integrated BMC‘s PEF and alerting features to then send that event out as an IPMI LAN alert, directed to the software application over the LAN link. 44 Intel order number G13326-003 Revision 1.0
Intel® Server Board S1200BT TPS Platform Management Alerts that provide useful notification to the external software for NM management, but do not represent significant fault conditions that need to be put into the SEL, will be sent to the Integrated BMC using the IPMI Alert Immediate command. This requires that the external software application provide the NM on the ME with the alert destination and alert string information needed to properly form and send the alert. The external software must first properly configure the alert destination and string in the Integrated BMC LAN configuration using standard IPMI commands, then provide the associated selectors to the Integrated BMC using the ―Set Node Manager Alert Destination‖ OEM command. 4.4.3.2 BIOS-Integreated BMC-ME Communication In this generation of platforms, the BIOS communicates directly with the ME via HECI. Revision 1.0 Intel order number G13326-003 45
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