When working on the HP ILO of a blade server you get a grey/black screen, both with the ILO through the Java- and ActiveX-based ILO.
A reboot of the server does not offer a solution, the grey/black screen remains.
No POST message is shown at the (re)boot of the server.
1) Reset the ILO.
2) Perform a ‘cold boot’ of the machine.
1) Open a telnet session to your enclosure.
2) Logon to the telnet session.
3) Execute the following command : Reset Server <bay number of your server>
DC1RCK1ENC2> reset server 3
WARNING: Resetting the server trips its E-Fuse. This causes all power to be momentarily
removed from the server. This command should only be used when physical access to the
server is unavailable, and the server must be removed and reinserted.
Any disk operations on direct attached storage devices will be affected. I/O
will be interrupted on any direct attached I/O devices.
Entering anything other than 'YES' will result in the command not executing.
Do you want to continue ? YES
Successfully reset the E-Fuse for device bay 3.