On 11/20/18 10:21 PM, Song BJ Yang wrote:
Hi Kevin,
Interesting to hear that you are managing Dell servers with xCAT, may I have 2
additional questions on this?
1. is there any gap or manual workaround in your practice to manage Dell R230
servers with xCAT? Since from our perspective, the official verification on
managing non-IBM(Lenovo) servers is insufficient in xCAT release cycles.
2. how did your team know xCAT and make your decision to choose xCAT? We also
heard that some Admins are using canonical MAAS to manage bare metal servers and
using configuration management tools like Ansible, did you try these tools? do
you have some insights on xCAT compared with these tools?
thanks for your time
Hi Yang
You're really surprised about xCAT customers managing Dell servers? ;-)
We've been using xCAT for roughly 15 years on Sun,Dell,HP,HPE,Lenovo,IBM,EXXACT,
SuperMicro - at last count we had over 30 different vendor/machine type
combinations. We did start using xCAT when it was a proprietary IBM product
(our first IBM cluster was a Pentium III cluster) and really glad it
went open source ;-)
Rich
--
Rich Sudlow
University of Notre Dame
Center for Research Computing - Union Station
506 W. South St
South Bend, In 46601
(574) 631-7258 (office)
(574) 807-1046 (cell)
------------------------------------------------------------------------------
YANG Song (杨嵩)
IBM China System Technology Laboratory
Tel: 86-10-82452903
Email: yang...@cn.ibm.com
Address: Building 28, ZhongGuanCun Software Park,
No.8, Dong Bei Wang West Road, Haidian District Beijing 100193, PRC
北京市海淀区东北旺西路8号中关村软件园28号楼
邮编: 100193
----- 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 re-discover a node?
Date: Wed, Nov 21, 2018 10:22 AM
Right now, I'm managing a "miniature cluster" consisting of three Dell R230
servers. It's strictly a testbed for future deployment on our "real"
cluster. That's why I'm experimenting with stuff one shouldn't do on a live
system, like deleting nodes...
The live cluster is still relatively small (16 nodes), and will be used for
quite a few different applications by our chemists, physicists and
engineers.
_______________________________________________________________________
Kevin Keane | Systems Architect | University of San Diego ITS |
kke...@sandiego.edu <mailto:kke...@sandiego.edu>
Maher Hall, 192 |5998 Alcalá Park | San Diego, CA 92110-2492 | 619.260.6859
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On Tue, Nov 20, 2018 at 5:44 PM Er Tao Zhao <erta...@cn.ibm.com
<mailto:erta...@cn.ibm.com>> wrote:
Hi, Kevin
May I know what kind of server are you managing with xCAT? What about
the size of the cluster? What kind of APP will be deployed on the
cluster?
Thx!
Best Regards,
-----------------------------------
Zhao Er Tao
IBM China System and Technology Laboratory, Beijing
Tel:(86-10)82450485
Email: erta...@cn.ibm.com <mailto:erta...@cn.ibm.com>
Address: 1/F, 28 Building,ZhongGuanCun Software Park,
No.8 DongBeiWang West Road, Haidian District,
Beijing, 100193, P.R.China
----- Original message -----
From: Kevin Keane <kke...@sandiego.edu <mailto:kke...@sandiego.edu>>
To: xCAT Users Mailing list <xcat-user@lists.sourceforge.net
<mailto:xcat-user@lists.sourceforge.net>>
Cc:
Subject: Re: [xcat-user] How to re-discover a node?
Date: Wed, Nov 21, 2018 2:05 AM
Thank you! It worked!
The mac address was missing because I had actually deleted the
already-discovered node (which had the MAC address), and then
recreated the predefined node with just the basic information.
bmcdiscover matched the predefined node, presumably, because the BMC
IP address already matched.
_______________________________________________________________________
Kevin Keane | Systems Architect | University of San Diego ITS |
kke...@sandiego.edu <mailto:kke...@sandiego.edu>
Maher Hall, 192 |5998 Alcalá Park | San Diego, CA 92110-2492 |
619.260.6859
*REMEMBER! **_No one from IT at USD will ever ask to confirm or
supply your password_*.
These messages are an attempt to steal your username and password.
Please do not reply to, click the links within, or open the
attachments of these messages. Delete them!
On Mon, Nov 19, 2018 at 10:39 PM Er Tao Zhao <erta...@cn.ibm.com
<mailto:erta...@cn.ibm.com>> wrote:
Hi, Kevin
Yes, if a server have been discovered, bmcdiscover will report
the node match to a pre-defined node.
But for your scenario, the server host MAC address is set to the
pre-defined node, if bmcdiscover can match a pre-defined node,
how does the Mac address is missing?
And you don't need to worry about the bmcdiscover matching, if
the Mac address for pre-defined node is missing, you can do:
1. nodeset <predefined_node> offline
2. rpower <predefined_node> boot
To restart hardware discovery.
Pls let me know if there is any more issues.
Thx!
Best Regards,
-----------------------------------
Zhao Er Tao
IBM China System and Technology Laboratory, Beijing
Tel:(86-10)82450485
Email: erta...@cn.ibm.com <mailto:erta...@cn.ibm.com>
Address: 1/F, 28 Building,ZhongGuanCun Software Park,
No.8 DongBeiWang West Road, Haidian District,
Beijing, 100193, P.R.China
----- Original message -----
From: Kevin Keane <kke...@sandiego.edu
<mailto:kke...@sandiego.edu>>
To: xCAT Users Mailing list <xcat-user@lists.sourceforge.net
<mailto:xcat-user@lists.sourceforge.net>>
Cc:
Subject: [xcat-user] How to re-discover a node?
Date: Tue, Nov 20, 2018 6:45 AM
I am using xCAT 2.14.4 on RedHat 7.4.
I have BMC discovery working (with the MTMS approach, and
using different IP addresses. This works well:
- Create the predefined node (I do this before running
bmcdiscover)
- run bmcdiscover to create tne node-model_type-serial
nodes.
- power on the nodes
- xCAT matches the node-model_type-serial nodes with my
predefined nodes.
- xCAT populates the mac address and other fields.
- on the nodes, the BMC changes to the static IP I want to
use.
But when I then delete my node object and try to repeat the
process, discovery fails:
- Create the predefined node.
- run bmcdiscover. Bmcdiscover will report that the node
already exists.
- From here on, I can't figure out how to get the mac
address to populate.
So how can I re-run discovery to populate the mac address,
when the BMC already has its static IP?
Thanks!
_______________________________________________________________________
Kevin Keane | Systems Architect | University of San Diego
ITS | kke...@sandiego.edu <mailto:kke...@sandiego.edu>
Maher Hall, 192 |5998 Alcalá Park | San Diego, CA 92110-2492
| 619.260.6859
*REMEMBER! **_No one from IT at USD will ever ask to confirm
or supply your password_*.
These messages are an attempt to steal your username and
password. Please do not reply to, click the links within, or
open the attachments of these messages. Delete them!
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