Re: [xcat-user] upgrading xCAT onto new servers

Wed, 08 Feb 2017 01:56:14 -0800

Hi, David
 
Can you show me the node definition?
The postbootscript will be run one by one on the CN no matter of the alphabet order.
 
Thx!
Best Regards,
-----------------------------------
Zhao Er Tao

IBM China System and Technology Laboratory, Beijing
Tel:(86-10)82450485
Email: 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: David D Johnson <david_john...@brown.edu>
To: xCAT Users Mailing list <xcat-user@lists.sourceforge.net>
Cc:
Subject: Re: [xcat-user] upgrading xCAT onto new servers
Date: Tue, Feb 7, 2017 8:04 PM
 
That was already the case (IP of mgt1 and IP of mgt[2] are the forwarders).
I don't believe it will forward requests within the zones that it is authoritative.
I ended up using tabdump to recreate the hosts and nodelist tables. Mostly good.
 
Now the problem of the day is fixing the SSH credentials so that all the diskless nodes booting off the
new frontend can get root access to all the nodes still booted off the old frontend.  Need this
especially for GPFS.  I've been trying to follow what's going on in the remoteshell postscript,
and I'm wondering if my "sitespecific" postscript is running before "remoteshell" is competed.
Is there a way to determine/force the order the postscripts are executed?  Sitespecific is after
remoteshell both in alphabet and in the lsdef output. 
The basic problem is that mmsdrrestore fails during sitespecific, but works fine when I try it again later by hand.
 
 -- ddj
Dave Johnson
Brown University
 
On Feb 7, 2017, at 4:32 AM, Er Tao Zhao <erta...@cn.ibm.com> wrote:
 
Hi, David
 
Will you pls try 'chdef -t site forwarders=<ip_of_mgt1>' and then 'makedns' to use mgt1 as your remote DNS server.
Pls feel free to 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
Address: 1/F, 28 Building,ZhongGuanCun Software Park,
No.8 DongBeiWang West Road, Haidian District,
Beijing, 100193, P.R.China
 
 
----- Original message -----
From: "David D. Johnson" <david_john...@brown.edu>
To: "xcat-user@lists.sourceforge.net" <xcat-user@lists.sourceforge.net>
Cc:
Subject: [xcat-user] upgrading xCAT onto new servers
Date: Sat, Feb 4, 2017 3:04 AM
 
We’re upgrading cluster mgt node hardware and software at the same time, going from 2.8.3 to 2.13.1,
and from centos6.7 to rhels7.2.   I have the new frontend installed and somewhat functional.
Right now I’m needing to clone the DNS / named from “mgt1” that is still authoritative for the production cluster.
I could just tabdump hosts and nodelist and do makedns on “mgt5”, or I’m thinking there might be a way to make
the new mgt5 a slave to the existing named running on mgt1.   Any pros/cons?  What would you do?

Thanks,

 — ddj
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