BMC Settings
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9.11.3 BMC Watchdog for System
Software watchdog can be used for a number of system timeout function by system
management or by BIOS. If software watchdog is triggered, the following actions are
available.
●
System Reset
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System Power Off
●
System Power Cycle
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When BMC watchdog working, BMC will record SEL log.
9.11.4 BMC Recovery
Users can reset BMC from WEB or IPMI interface in case of abnormal situation.
●
Warm reset BMC, use “ipmitool mc reset warm”, the IPMI Server, KVM Server and WEB
Server will be reset.
●
Cold reset BMC, use WEB or “ipmtool mc reset cold”, and BMC will be reset.
●
KVM reset, user WEB and KVM server will be reset.
Figure 9-36 BMC Recovery
9.12 BMC Self Recovery
BMC Self Recovery provides the ability of automatic repair operations as well if necessary.
9.12.1 Hardware Watchdog
Known fault scenarios:
●
Kernel panic
●
System resources exhausted or error, system can’t create a new task, but the original task
can continue to run.
Hardware watchdog:
●
Watchdog starts when uboot loads kernel, and the timeout is 5 minutes. If BMC boot
timeout occurs, BMC will reset.
●
After the BMC system starts, the main process resets the Watchdog every minute. If the
timeout is more than 1 minute, BMC will reset.
