Resetting frozen iDRAC without unplugging the server

News Dell DRAC Recommended Links iDRAC7 goes unresponsive - can't connect to iDRAC7 RACADM Command Line Interface iLO 3 -- HP engineering fiasco
IPMI ipmitool Updating the DRAC  Firmware Configuring Platform Events vFlash PERC controller
 Administration of Remote Servers Getting console via ssh in DRAC Resetting frozen iDRAC without unplugging the server Sysadmin Horror Stories Humor Etc

This page is just a summary of the important topic. This topic in more details is covered in iDRAC7 goes unresponsive - can't connect to iDRAC7

There are several ways to reset DRAC:

If DRAC is still alive you can reboot it via ssh, or racadm.

i-button for resetting DRAC -- well kept Dell secret

What Dell (unlike HP and CISCO) did right is that on rack servers like R620 and R720 it provides a button with the letter i on it (i-button) to reset DRAC on the front panel of the server. On R620 this is small button located to the right of power button and it has a letter i on it. The button is very small, much smaller in diameter then the power button (which shine with solid green). On R710 it is below (shown on the picture). On R620 to the right of power button.  You need to press the button for 20 sec continuously to force the reboot. As you press it it start to shine with solid blue and then the light goes off and stays off. 

To reboot the iDRAC you need to press the button for 20 sec

Paradoxically despite chronic problems with DRAC this button is well kept Dell secret and it is easy to learn about its existence by placing a support call.

Paradoxically despite chronic problems with DRAC this button is well kept Dell secret and it is easy to learn about its existence by placing a support call.

I was unable to get information about it (and does not suspect about it existence) for the first nine month of the life of my first R620 server despite opening several tickets with Dell about DRAC problems.

You can't use ipmitool to reboot Drac Enterprise

Theoretically instead of racadm you can try to  reboot DRAC from the server OS using the ipmitool command from ipmitool-1.8.11-16.el6.x86_64 package. And there are several post on the Internet suggesting this command:

  ipmitool mc reset warm
It does not work with Dell DRAC Enterprise edition. Use a local installation of racadm instead. In my version of impitool even command ipmitool mc info hangs with iDrac7 Enterprise edition.

Attempt to find channel does not work either (MykoSpark blog, February 25, 2014):

for channel in {0..15}; do
ipmitool lan print ${channel} &>/dev/null
   [[ $? -eq 0 ]] && echo "${channel}"
IPMITool is separate non-Dell software, and it looks like Dell does not provide support for it for iDRAC7 Enterprise. IPMI is also used extensively in the BMC, which is a remote management tool with significantly reduced functionality compared to iDRAC 7 enterprise.

Looks like you cannot reset the iDRAC using ipmitool.


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Old News ;-)

Reset DELL idrac using SSH

Posted on 2012/11/13 by Fred

How to reboot an DELL idrac when web page refuse access:

Connect to idrac IP using ssh with the password refused by web page

$ ssh [email protected]
[email protected]'s password:

The magic DELL tool is here : radadm

/admin1-> racadm
 RACADM version 1.80 (Build 17)
 Copyright (c) 2003-2010 Dell, Inc.
 All Rights Reserved
RACADM usage syntax:
racadm <subcommand> <options>
racadm getsysinfo
 racadm getsysinfo -d
 racadm getniccfg
 racadm setniccfg -d
 racadm setniccfg -s
 racadm getconfig -g cfgLanNetworking
Display a list of available subcommands for the RAC:
racadm help
Display more detailed help for a specific subcommand:
racadm help <subcommand>
So to reboot :
/admin1-> racadm racreset soft
RAC reset operation initiated successfully. It may take up to a minute
for the RAC to come back online again.
/admin1-> Connection to closed by remote host.
Connection to closed.

Sometimes those pesky DRAC cards in the Dell servers just seem to not respond or act up. If you still have CLI access to it, you can reset it a two different ways.

If you are local to the machine, and it has OpenManage installed (OMSA), use this command to perform a soft-reset:

c:\racadm racreset soft

It will acknowledge that it has completed and you have to wait a few minutes.

If you are remote you need to have the DRAC tools installed, and credentials to use the command:

racadm -r <ip address> -u <username> -p <password> racreset soft

This will perform a "soft" reset, or a power cycle. No settings will be lost or changed.This is useful as the DRAC operates independently of the server and does not power cycle when the server does.

If the settings on the DRAC have become corrupted and you need to reset it to factory settings, the command is as follows:


racadm racresetcfg


racadm -r <ip address> -u <username> -p <password> racresetcfg

This reset will set everything back to factory defaults. You will lose connection remotely as it will also reset the DRAC back to the default IP scheme.



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