iRMC, BMC, and cluster nodes must belong to the same network segment.
If they do not belong to the same network segment, the IPMI shutdown agent does not operate properly.
To use the IPMI shutdown agent or the BLADE shutdown agent, also set the kdump shutdown agent.
If the kdump shutdown agent is not set, a node is forcibly stopped without collecting panic dumps.
The kdump shutdown agent is set with the panicinfo_setup command.
Note that the kdump shutdown agent cannot be used in the following environments:
Red Hat Enterprise Linux 8 environment in PRIMERGY RX1330M3, RX4770M3, TX1320M3, or TX1330M3
PRIMERGY CX1430M1 environment
The cluster high-speed failover function cannot be used in the following environments:
Red Hat Enterprise Linux 8 environment in PRIMERGY RX1330M3, RX4770M3, TX1320M3, or TX1330M3
PRIMERGY CX1430M1 environment
If one of the nodes that configure a cluster system fails and a heartbeat fails, the PRIMECLUSTER shutdown facility forcibly shuts down the failed node.
If the heartbeat fails due to a panic, crash dump collection ends in the middle because the node is forcibly shut down during crash dump collection.
If you want to manually collect a crash dump in the above environments, you need to follow the procedure in "C.1.3 Crash Dump." Otherwise, the node is forcibly shut down while collecting a crash dump, and crash dump collection ends in the middle.
LAN interfaces of iRMC and BMC are exclusive to LAN.
LAN interfaces of iRMC and BMC used in the shutdown facility are exclusive to LAN. They cannot be used with the administrative LAN or cluster interconnects.
When using the IPMI shutdown agent, assign the iRMC user to the Administrator permission group.
Without the administrator authority, the IPMI shutdown agent will not work correctly.
In an environment where a serial console is used, set the serial console to 57600 to 115200 bps.
If the serial console is set to 300 to 38400 bps, the kdump shutdown agent and the IPMI shutdown agent may not work correctly, and the operation may not be switched.
