Server Management Guide

Scenarios and Best Practices
Intel
®
Server Boards and Server Platforms Server Management Guide 99
5.6.3 When do you need to update the SDR?
In general, the SDR should be updated under two main circumstances:
 Anytime that there is a change to the system that would affect the thermal characteristics of the
system.
 You permanently add or remove a device that needs to be monitored. Devices that should be
monitored would include:
 Processors
 Power supplies
 Fans
 IO Risers
 SAS Riser
 IO Module (for example: SAS or NIC modules)
 Mezzanine Modules
 GPGPU
 Hot Swap Backplane
 Front Panel
NOTE
After doing an SDR update on your system, make sure that the system is reset. This will ensure that the
SDR is properly updated.
For these devices the BMC will not preload a SDR since it cannot determine whether there is not
supposed to be a device there or if it failing to report itself properly.
When a device is removed the BMC cannot determine whether the device was removed intentionally or
if they device has failed to report itself correctly.
Additionally the system cooling (Fan Speed Control) is affected by these various devices so to provide
the best cooling solution where we can keep critical components cooled without running the fans too
high (which can create acoustic issues) the BMC needs to understand the system configuration.
The power management can also be affected by changes to various devices that are installed. So in
order to control the power properly an accurate description of the system is needed in the SDR.
The power supply sensors need to be updated after permanently adding or removing a power supply to
ensure that power supply redundancy sensors have the correct information to properly function.
On Intel
®
server boards Based on Intel
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Xeon
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Processor E5 4600/2600/2400/1600 Product Families
the SDR should be updated when replacing a power supply with one of a different wattage. This is due