02:00am : Activity of Firmware started at server

02:35am : Step of Firmware, node did not come up & stuck on Line: Setting up Logical Volume Management:
04:25am : Node Came up. health was taken and no deviation was observed.
04:55am : After completion of the the 3rd Firmware step, node was given a reboot. Node was stuck at the same step.
05:45am : Node was available for login.
06:30am : As per 4th Firmware Step Power Cycle given to Node B.
07:10am : Node B is up & running.

please suggest what should i investigate in this.

Regard
Prabhat