
IPMI Feature Set
314
ATCA-7540 Installation and Use (6806871A01A
)
The IPMI command Set/Get System Boot Options together with the parameter #96 can be
used to specify the BIOS boot bank from which the payload shall boot from persistently. For
details, see
.
9.13.1 Boot Bank Sensor
The ATCA-7540 provides a Boot Bank Sensor, illustrating from which BIOS Boot Bank the boot
firmware has last booted. For details, see
9.13.2 Fail Safe Logic
Fail safe logic is a mechanism, implementing automatic BIOS boot bank crisis recovery. It
observes the BIOS boot phase to swap the BIOS boot banks and to reset the processor in case
the boot firmware hangs accidentally.
Fail safe logic can be enabled or disabled at any time with:
IPMI OEM command called Set/Get Feature Configuration and parameter #224. For
details, see
.
BIOS Setup Menu
Typically, fail safe logic is used to protect a BIOS firmware upgrade to recover, even when the
boot image programmed does not work, is damaged, or has an unpredictable error.
Fail safe logic is implemented within the IPMI management controller. If the firmware does not
boot and the BMC watchdog expires, the IPMI management controller will swap the boot
banks before resetting the CPU. Thus the blade can recover by booting from its redundant boot
flash, which contains the old active firmware image.
NOTICE
Be aware that swapping the BIOS boot bank is active only after payload reset.
Содержание ATCA-7540
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Страница 28: ...About this Manual 28 ATCA 7540 Installation and Use 6806871A01A ...
Страница 34: ...Safety Notes 34 ATCA 7540 Installation and Use 6806871A01A ...
Страница 66: ...Hardware Preparation and Installation 66 ATCA 7540 Installation and Use 6806871A01A ...
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