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04-02-2013 09:44 AM
04-02-2013 09:44 AM
I have about 500 DL360p-G8 servers where the iLO4 network interface no longer responds to SSH, HTTP, or SNMP connections. The iLO4 will respond to pings but nothing else. Since these servers are in production, I can't go to the front panel to shut them down and reset the iLO4. I want to access the iLO4 via the rear panel serial port so I can just reset the iLO4.
It appears that using "Esc(" to "break" into the iLO4 CLI only works up until the point where the sever actually begins to boot from media. Is there any way to access the iLO4, via the rear serial port, after the server has booted?
Solved! Go to Solution.
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04-02-2013 01:57 PM
04-02-2013 01:57 PM
Re: How Do You Connect to iLO4 Using Rear Serial Interface
Just to be clear, are you saying that once POST is completed, using the "ESC + SHIFT 9" key sequence to get into the iLO CLI won't work?
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04-02-2013 04:33 PM
04-02-2013 04:33 PM
Re: How Do You Connect to iLO4 Using Rear Serial Interface
I am about 99% sure that the rear Serial port is wired to the host, NOT the iLO.
Depending on the OS, I would use HPONCFG from the inside the Host OS along with Reset_RIB.xml from the iLO Sample Scripts package to reboot the iLO without rebooting the host.
obviously try this on a test machine to be sure it meets expectations before proceeding.
I work for HPE
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04-02-2013 07:57 PM
04-02-2013 07:57 PM
Re: How Do You Connect to iLO4 Using Rear Serial Interface
DanRobinson wrote:I am about 99% sure that the rear Serial port is wired to the host, NOT the iLO.
Actually iLO keeps an eye on the serial port and pressing "ESC (" should get you an iLO login prompt
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04-02-2013 08:17 PM
04-02-2013 08:17 PM
Re: How Do You Connect to iLO4 Using Rear Serial Interface
You refer to the iLO 4 User Guide, page 148 that details using the virtual serial port. The guide is locatable at the following link:
http://h20000.www2.hp.com/bc/docs/support/SupportManual/c03334051/c03334051.pdf
You may also refer to the HP iLO 4 Scripting and Command Line Guide for cli commands, locatable at the following link:
http://h20000.www2.hp.com/bc/docs/support/SupportManual/c03334058/c03334058.pdf
Regards,
Vijayasarathy
Views expressed herein are my personal opinion and are not the views of HPE
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04-03-2013 05:36 AM
04-03-2013 05:36 AM
Re: How Do You Connect to iLO4 Using Rear Serial Interface
As said by Dan, try reset via ribcl.
If this works for you, i have an excel spread sheet with a built in script that you can populate for inifinite ilo resets.
Cheers
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04-03-2013 06:48 AM - edited 04-03-2013 06:51 AM
04-03-2013 06:48 AM - edited 04-03-2013 06:51 AM
Re: How Do You Connect to iLO4 Using Rear Serial Interface
The server's serial port is wired to both the host and iLO through a MUX. iLO has a UART that is always "listening" to the server's physical serial port and when iLO detects the "ESC + SHIFT 9" key sequence, iLO switches the MUX and takes full control of the serial port.
In order for this feature to this to work, iLO "Serial Command Line Interface Status" must be enabled (either with "authentication required" setting or not) and the "Serial Command Line Interface Speed" has to match the Baud Rate of the device connected to the server's serial port. iLO Default speed is 9600 bits/second.
Once you are in the iLO CLI prompt you can reboot iLO by typing
cd /map1
reset
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04-03-2013 08:07 AM
04-03-2013 08:07 AM
Re: How Do You Connect to iLO4 Using Rear Serial Interface
Oscar, is the "ESC + SHIFT 9" key sequence is done during post ?
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04-03-2013 08:09 AM
04-03-2013 08:09 AM
Re: How Do You Connect to iLO4 Using Rear Serial Interface
Hal, have you tired to telnet to the ilo ? You can also reset it once connected.
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04-03-2013 08:32 AM
04-03-2013 08:32 AM
Re: How Do You Connect to iLO4 Using Rear Serial Interface
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