Re: [xcat-user] How to configure IPMI?

Tue, 06 Mar 2018 13:14:51 -0800

Hi Kevin
 
Discovery is tricky and it looks like the doc does not clear up a lot of this ...  let me see if i can give some more details...
 
 
bmcdiscover generates a temporary node definition for the BMC, this allows admins to power control the unknown server through xCAT,  We need a new server to boot the host and xCAT will send the genesis kernel to servers that it does not recognize MAC addresses of.  So the temporary node definition is this guy: node-dell-poweredge-r230-7q3z7m2,  When xCAT makes a match between the temporary node definition and the pre-defined node definition (through MTMS, switch based discovery), it will automatically remove the "node-<MT-SN>" definition from the xCAT database.
 
Typically, the node IPs and BMC IPs would not be part of the dynamic range, so when the BMC comes up, it will get a IP address from the dynamic range, let's just say your range is 192.168.101.200-192.168.101.250 (50 IPs)
 
You can set the static information in the pre-defined node definition, cn-002.....
 
For example, here's a simplified discovery process
 
1. The server BMC comes up and gets a DHCP IP address from the dyn range, lets say it gets the first one, 192.168.101.200. 
 
2. Then you run bmcdiscover --range 192.168.101.200 and write this temporary node definition to the BMC....
 
3. Then create a pre-defined node definition cn-002....
 
cn-002:
   bmc=192.168.101.202
   ip=192.168.101.102
   chain=runcmd=bmcsetup,standby
   ...
   mtm=DELL:PowerEdge R230
   serial=7Q3Z7M2
 
4. Then set the server to network boot and power it on....  That's the commands Casandra gave:

rsetboot node-dell-poweredge-r230-7q3z7m2 net
rpower node-dell-poweredge-r230-7q3z7m2 boot
 
5. This powers on the host side and on any MAC address that xCAT does not know about it, it will send over the genesis kernel (a diskless linux image that does discovery and sends back the info to xCATd)
 
 
6. In that cn-002, I set some properties of the chain table... chain attribute will run bmcsetup  script inside discovery that if it makes a match (in this case using MTMS discovery) it will send over the properties of the node and will configure the BMC IP address to be  192.168.101.202
 
At this point, you should be able to power control using `rpower cn-002 state`  without any need to merge information between the two definitions.
 
 
Regards,
Victor
 
   
 
 
----- Original message -----
From: Kevin Keane <kke...@sandiego.edu>
To: xCAT Users Mailing list <xcat-user@lists.sourceforge.net>
Cc:
Subject: Re: [xcat-user] How to configure IPMI?
Date: Tue, Mar 6, 2018 12:49 PM
 
Thank you, Casandra.
 
So in effect I have to manually merge the BMC information into my predefined node? I think I can do that.
 
One more question. I'm still confused about how xCAT gets the correct IP address into the correct system. This is what may new merged node looks like.

Object name: cn-002
    arch=x86_64
    bmc=192.168.101.201
    bmcpassword=calvin
    bmcusername=root
    chain=runcmd=bmcsetup,shell
    cons=ipmi
    groups=ipmi,dellr230,all,compute
    hwtype=bmc
    installnic=mac
    ip=192.168.101.4
    mgt=ipmi
    mtm=DELL:PowerEdge R230
    netboot=xnba
    nichostnamesuffixes.em1=-comp
    nichostnamesuffixes.em2=-mgt
    nicips.em1=192.168.100.4
    nicips.em2=192.168.101.4
    nodetype=mp
    os=rhels7.4
    postbootscripts=otherpkgs,confignics
    postscripts=syslog,remoteshell,syncfiles,setupntp
    primarynic=mac
    profile="">    provmethod=rhels7.4-x86_64-netboot-hpccn
    serial=7Q3Z7M2
 
 
On Mon, Mar 5, 2018 at 2:02 PM, Casandra H Qiu <cxh...@us.ibm.com> wrote:

bmcdiscover command will created this node definition to xcatdb:

node-dell-poweredge-r230-7q3z7m2:
    objtype=node
    groups=all
    bmc=192.168.101.201
    cons=ipmi
    mgt=ipmi
    mtm=DELL:PowerEdge R230
    serial=7Q3Z7M2
    bmcusername=root
    bmcpassword=calvin

For your predefine the compute node, you need to update bmc info, mtm, serial.....
chdef cn-001 bmc=192.168.101.201 bmcusername=root bmcpassword=calvin mtm=DELL:PowerEdge R230 serial=7Q3Z7M2

then, reboot the bmc node:
rsetboot node-dell-poweredge-r230-7q3z7m2 net
rpower node-dell-poweredge-r230-7q3z7m2 boot

bmc node definition will be removed from xcat database once compute node discovered via mtms.

refer this doc for more information:
http://xcat-docs.readthedocs.io/en/stable/guides/admin-guides/manage_clusters/ppc64le/discovery/mtms/discovery_using_defined.html




Thanks,
Casandra

...................................................................
Casandra Hong Qiu
Phone: (845) 433-9291, t/l 293-9291
Office: Building 8, 3-B-04
cxh...@us.ibm.com



Inactive hide details for Kevin Keane ---03/05/2018 03:47:15 PM---Thank you, that filled in a big part of the puzzle! I am stilKevin Keane ---03/05/2018 03:47:15 PM---Thank you, that filled in a big part of the puzzle! I am still confused how to get bmcdiscover to ad

From: Kevin Keane <kke...@sandiego.edu>
To: xCAT Users Mailing list <xcat-user@lists.sourceforge.net>
Date: 03/05/2018 03:47 PM
Subject: Re: [xcat-user] How to configure IPMI?

 



Thank you, that filled in a big part of the puzzle!

I am still confused how to get bmcdiscover to add the information to the existing node, instead of creating a new one.

bmcdiscover seems to generate a new second node, and I'm not sure how to correlate that to the existing one. The page you pointed me to seems to suggest this is a manual process?


node-dell-poweredge-r230-7q3z7m2:
    objtype=node
    groups=all
    bmc=192.168.101.201
    cons=ipmi
    mgt=ipmi
    mtm=DELL:PowerEdge R230
    serial=7Q3Z7M2
    bmcusername=root
    bmcpassword=calvin

And this is the one I already have predefined.

Object name: cn-001
    arch=x86_64
    cons=ipmi
    groups=ipmi,all,all,compute
    installnic=mac
    ip=192.168.101.3
    mac=50:9A:4C:74:58:0F
    mgt=ipmi
    netboot=xnba
    nichostnamesuffixes.em1=-comp
    nichostnamesuffixes.em2=-mgt
    nicips.em1=192.168.100.3
    nicips.em2=192.168.101.3
    os=rhels7.4
    postbootscripts=otherpkgs,confignics
    postscripts=syslog,remoteshell,syncfiles,setupntp
    primarynic=mac
    profile="">    provmethod=rhels7.4-x86_64-netboot-hpccn
    updatestatus=failed
    updatestatustime=02-20-2018 16:26:47



On Mon, Mar 5, 2018 at 11:33 AM, Casandra H Qiu <cxh...@us.ibm.com> wrote:


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_______________________________________________________________________
Kevin Keane | Systems Architect | University of San Diego ITS | kke...@sandiego.edu
Maher Hall, 192 |5998 Alcalá Park | San Diego, CA 92110-2492 | 619.260.6859
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_______________________________________________________________________
Kevin Keane | Systems Architect | University of San Diego ITS | kke...@sandiego.edu
Maher Hall, 192 |5998 Alcalá Park | San Diego, CA 92110-2492 | 619.260.6859

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