Intel® Server Board Set SE8500HW4 | Server Management |
5.1.3System Event Log (SEL)
The BMC allocates 65,536 bytes of
5.1.4Rolling BIOS
The Intel® Server Board Set SE8500HW4 Mainboard provides two firmware hubs that can contain two independent BIOS versions. This allows BIOS updates without a system reboot as well as failover to a good BIOS image in the event of BIOS corruption. BMC support for this feature includes the following:
Persistent storage of the currently selected the BIOS image (firmware hub) and the validity of each image, on the IMM
OEM command support for the BIOS to query/change the currently selected the BIOS image (firmware hub)
Physical control of the currently selected the BIOS image (firmware hub)
5.1.5First Boot with a New IMM
Since the IMM is shared among several Intel server products, a new IMM may not be initially programmed with the Intel® Server Board Set SE8500HW4 SDRs and BMC code. After installing a new IMM, the user is required to load the Intel® Server Board Set SE8500HW4- specific BMC firmware, SDRs and the BIOS during the first system boot.
The IMM module contains a persistent flag indicating the firmware hub that contains the primary the BIOS image. During a BIOS update, the new BIOS image overwrites the inactive (secondary) firmware hub. The IMM flag is updated to reference the inactive firmware hub as the primary BIOS image and, after a reboot, the updated BIOS image will load.
A new IMM is programmed to boot using the BIOS image on firmware hub 0. For this reason, users should always update BMC, SDRs and the BIOS when first installing a module. See Table 10 for an example of rolling BIOS behavior with a new IMM.
Table 10. Example Rolling BIOS Behavior with a New IMM
| Events | Newest BIOS | Firmware Hub 0 | Firmware Hub 1 |
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| available from |
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| support.intel.com |
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| Server received | BIOS P02 | BIOS P01 | BIOS P01 |
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| New IMM installed | BIOS P02 | BIOS P01 (primary) | BIOS P01 (secondary) |
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| BMC, SDRs, and BIOS | BIOS P02 | BIOS P01 (secondary) | BIOS P02 (primary) |
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| updated due to new IMM |
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| installation |
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| Server is in use for | BIOS P03 | BIOS P01 (secondary) | BIOS P02 (primary) |
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| months … |
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| BIOS updated because a | BIOS P03 | BIOS P03 (primary) | BIOS P02 (secondary) |
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Revision 1.0 |
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| 31 |
Intel order number