
Intel® Server Board SE7520BD2 Technical Product SpecificationPlatform Management Architecture
Revision 1.3
Intel Confidential
67
4. Platform
Management
Architecture
4.1 Management
Architecture
Overview
4.1.1 Tiered
Server
Management
Model
To provide the flexibility of different management features, the baseboard supports a three
tiered server management model. The features offered with the second tier build upon the
features of the first, and the features of the third tier build upon the features of the second.
Tier 1 – Essentials (Default)
Essentials server management functions are provided by default and are built into the
baseboard. This tier is minimally IPMI 1.5 compliant, although some functionality may be
implemented in a manner different from the Standard and Advanced management models. The
essential functions are provided by a combination of BIOS and a National Semiconductor*
PC87431x Mini Baseboard Management Controller (mBMC).
Tier 2 – Standard (Optional)
The Standard management model utilizes the feature set of a fully IPMI 2.0 compliant Sahalee
Baseboard Management Controller (BMC). On the Server Board SE7520BD2 the Sahalee BMC
is located on an optionally installed Flexible Management Module (FMM) that plugs into a
dedicated server management connector on the baseboard. When an FMM is installed, the
mBMC is automatically converted from an autonomous controller to an I
2
C based I/O device,
allowing the Sahalee BMC to completely manage the system.
Tier 3 – Advanced (Optional)
Like the Standard management model, the Advanced management model is implemented using
an optionally installed FMM which has a Sahalee BMC integrated onto it. In addition to the
features provided with the Standard management module, the Advanced module supports a
number of network based Out Of Band (OOB) management capabilities, including the
availability of a dedicated management NIC for faster network access and to support a full
TCP/IP software stack.
The following tables provide an overview of the features supported with each of the three
management tiers.
Table 36. Tiered Platform Management Feature Overview
Element
Essentials
Standard
Advanced
IPMI Messaging, Commands, and Abstractions
Yes
Yes
Yes
Baseboard Management Controller (BMC)
Yes
Yes
Yes
Sensors Limited
Yes
Yes
Sensor Data Records (SDRs) and SDR Repository
Limited
Yes
Yes
FRU Information
Limited
Yes
Yes
Autonomous Event Logging
Yes
Yes
Yes
System Event Log (SEL)
92 Entries
3276 Entries
3276 Entries
BMC Watchdog Timer, covering BIOS and Run-Time software
Limited
Yes
Yes