Re: [xcat-user] (no subject)

Yuan Y Bai Thu, 15 Mar 2018 21:44:35 -0700

Hi Carmelo,

Thanks for giving us your case.

I found you used node name “arc06.lcg.cscs.ch” to replace “arch06” which worked around your current case?

If you want to use “arc06.lcg.cscs.ch” as hostname, you can use “arc06” as node name and configure

hosts.csv: ”arc06","148.187.xxx.xxx","arc06.lcg.cscs.ch",,

arc06.lcg.cscs.ch is as hostname alias for node arc06. DNA will resolve arc06.lcg.cscs.ch the same ip with arc06.

“arc06.lcg.cscs.ch” is a invalid node name format, we do not recommend using such node format, see this issue:https://github.com/xcat2/xcat-core/issues/4792 .

Best Regards
--------------------------------------------------
Yuan Bai (白媛)

CSTL HPC System Management Development
Tel:86-10-82451401
E-mail: by...@cn.ibm.com
Address: IBM ZGC Campus. Ring Building 28,
ZhongGuanCun Software Park,No.8 Dong Bei Wang West Road, Haidian District,
Beijing P.R.China 100193

IBM环宇大厦
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: "Carmelo Ponti (CSCS)" <cpo...@cscs.ch>
To: xCAT Users Mailing list <xcat-user@lists.sourceforge.net>
Cc:
Subject: Re: [xcat-user] (no subject)
Date: Fri, Mar 16, 2018 12:32 AM

Dear Christian,

I have only one entry in the networks table:

# tabdump networks

#netname,net,mask,mgtifname,gateway,dhcpserver,tftpserver,nameservers,n
tpservers,logservers,dynamicrange,staticrange,staticrangeincrement,node
hostname,ddnsdomain,vlanid,domain,mtu,comments,disable
"148_187_x_0-
255_255_255_0","148.187.x.0","255.255.255.0","ens192","148.187.x.x",,"1
48.187.x.xx",,,,,,,,,,,"1500",,

lcg.cscs.ch is using another subnet.

Carmelo

On Thu, 2018-03-15 at 14:12 +0000, Christian Caruthers wrote:
> Can you paste the contents of the networks table entry for the
> 148.187.x.xx network you’re using for the lcg.cscs.ch
> network/subdomain?
>
> Regards,
> Christian Caruthers
> Lenovo Professional Services
> Mobile: 757-289-9872
>
> From: Carmelo Ponti (CSCS) [mailto:cpo...@cscs.ch]
> Sent: Thursday, March 15, 2018 07:04
> To: xCAT Users Mailing list <xcat-user@lists.sourceforge.net>
> Cc: Conciatore Dino <conciat...@cscs.ch>
> Subject: Re: [xcat-user] (no subject)
>
> Dear Bin and Christian,
>
> Thank you very much for your prompt answer. Usually at CSCS we are
> using xCAT to install specific clusters and we never faced out this
> problem. In this case we are trying to use xCAT to install general
> purpose servers, small cluster or virtual machines so we have a very
> heterogeneous environment. As you pointed out we tried to install
> servers located on a different subnet with a different subdomain
> (e.g.: bar.<department>.cscs.ch). Yesterday our fist configuration
> was the following:
>
>
> hosts.csv:"arc06","148.187.xxx.xxx","arc06.lcg.cscs.ch",,,
> mac.csv:"arc06","ens32","00:50:56:xx:xx:xx",,
> nodehm.csv:"arc06","ipmi","ipmi","kvm",,,,,,,,,,,
> nodelist.csv:"arc06","all,cscs","booting","03-15-2018
> 10:02:31",,,,,,,,,
> noderes.csv:"arc06",,"pxe","148.187.x.xx","/tftpboot","148.187.x.xx",
> ,,,"ens32",,,,,,,,,,,,
> nodetype.csv:"arc06","centos7.4","x86_64","cscs","centos7.4-x86_64-
> install-cscs",,,,
>
> This is the way I always used since years but in this case failed.
>
> After some tests we tried to configure again arc06 as following:
>
> hosts.csv:"arc06.lcg.cscs.ch","148.187.xxx.xxx","arc06.lcg.cscs.ch",,
> ,
> mac.csv:"arc06.lcg.cscs.ch","ens32","00:50:56:xx:xx:xx",,
> nodehm.csv:"arc06.lcg.cscs.ch","ipmi","ipmi","kvm",,,,,,,,,,,
> nodelist.csv:"arc06.lcg.cscs.ch","all,cscs",,,,,,,,,,,
> noderes.csv:"arc06.lcg.cscs.ch",,"pxe","148.187.x.xx","/tftpboot","14
> 8.187.x.xx",,,,"ens32",,,,,,,,,,,,
> nodetype.csv:"arc06.lcg.cscs.ch","centos7.4","x86_64","compute","cent
> os7.4-x86_64-install-compute",,"osi",,
>
> And now we managed to install the server without problem. Apparently
> we fixed our problem but it would be nice to hear your
> comments/suggestions too.
>
> Thank you,
> Carmelo
>
> On Thu, 2018-03-15 at 05:49 +0000, Bin XA Xu wrote:
> Hi Carmelo,
>
> Thanks to give us the information, but pointed out by Christian,
> we'd like to know more about your scenario there.
> It seems you want some nodes' FQDN are foo.cscs.ch, and some of
> them are bar.<department>.cscs.ch.
>
> Are those nodes in the same subnet? and why we want the
> different domain, just for split a big cluster into some small ones?
>
> Bin Xu
> HPC Software Development
> Software Defined Infrastructure, IBM Systems
> Phone: 86-010-82454067
> E-mail: bx...@cn.ibm.com<mailto:bx...@cn.ibm.com>
>
>
> ----- Original message -----
> From: Christian Caruthers <ccaruth...@lenovo.com<mailto:ccaruthers@le
> novo.com>>
> To: xCAT Users Mailing list <xcat-user@lists.sourceforge.net<mailto:x
> cat-u...@lists.sourceforge.net>>
> Cc:
> Subject: Re: [xcat-user] (no subject)
> Date: Wed, Mar 14, 2018 9:34 PM
>
> Are you asking about multi-homed cluster clients or whether xCAT can
> manage a client that does not have an interface on the provisioning
> network? How do these different domains translate to networks? Are
> they all on the same network, or separated into different subnets?
>
> Regards,
> Christian Caruthers
> Lenovo Professional Services
> Mobile: 757-289-9872
>
> -----Original Message-----
> From: Carmelo Ponti (CSCS) [mailto:cpo...@cscs.ch]
> Sent: Wednesday, March 14, 2018 07:25
> To: xcat-user@lists.sourceforge.net<mailto:xcat-user@lists.sourceforg
> e.net>
> Cc: Conciatore Dino <conciat...@cscs.ch<mailto:conciat...@cscs.ch>>
> Subject: [xcat-user] (no subject)
>
> Hello,
>
> at CSCS we would like to use the same xcat server to install
> different servers with different domains.
>
> With the main domain defined in /etc/xcat/site.sqlite we don't have
> any
> problem:
>
> # tabdump site | grep domain
> "domain","cscs.ch",,
>
> All servers with a name or an alias <hostname>.cscs.ch are working
> perfectly.
>
> But if we try to install a new server with another domain (e.g.:
> hostname.something.cscs.ch), this will failed.
>
> I would like to know if it's possible to define multiple domains on
> the same xcat server.
>
> Thank you in advance,
> Carmelo Ponti
>
> --
> -------------------------------------------------------------------
> ---
> Carmelo Ponti System Engineer
> CSCS Swiss Center for Scientific Computing
> Via Trevano 131 Email: cpo...@cscs.ch<mailto:cpo...@cscs.ch>
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> --
>
> -------------------------------------------------------------------
> ---
>
> Carmelo Ponti System Engineer
>
> CSCS Swiss Center for Scientific Computing
>
> Via Trevano 131 Email: cpo...@cscs.ch<mailto:cpo...@cscs.ch>
>
> CH-6900 Lugano https://urldefense.proofpoint.com/v2/url?u=http-3A__www.cscs.ch&d=DwIGaQ&c=jf_iaSHvJObTbx-siA1ZOg&r=uiTcPxjMR44SPRNNb6l_nA&m=rX0z9xg2donUClMnKyOe7KaqWPXWXPhSQAEPClwZ-ow&s=sJr-AbawTi-1JjiAo1zkU_F-Ov2vscEADi471AYxgM0&e=
>
> Phone: +41 91 610 82 15/Fax: +41 91 610 82 82
>
> -------------------------------------------------------------------
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--
----------------------------------------------------------------------
Carmelo Ponti System Engineer
CSCS Swiss Center for Scientific Computing
Via Trevano 131 Email: cpo...@cscs.ch
CH-6900 Lugano https://urldefense.proofpoint.com/v2/url?u=http-3A__www.cscs.ch&d=DwIGaQ&c=jf_iaSHvJObTbx-siA1ZOg&r=uiTcPxjMR44SPRNNb6l_nA&m=rX0z9xg2donUClMnKyOe7KaqWPXWXPhSQAEPClwZ-ow&s=sJr-AbawTi-1JjiAo1zkU_F-Ov2vscEADi471AYxgM0&e=
Phone: +41 91 610 82 15/Fax: +41 91 610 82 82
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