We’ve kept parallel clusters on the same network for nearly a year now while
transitioning to RH7 from CentOS 6.
Initially copied the hosts and nodelist and MAC tables into the new xcat
database. Carefully controlled use of makedhcp so that nodes moving to the new
cluster were first added to
Yep what Nick said :)
Personally I prefer to administer switches directly, or via a configuration
management utility such as Ansible.
Cheers,
Carl.
On Fri, 7 Dec 2018 at 08:23, Nick Evans wrote:
> Hi Vinícius
>
> From the information on the makegocons page it will only create remote
>
I think you should tackle these three things separately:
> root SSH to nodes from external machines isn’t working. Typing the
correct password lead to an authentication failure.
You don't say if you have stateful, statelite or stateless nodes, and if
the nodes have been installed using xCAT, or
I'm in the middle of upgrading our existing HPC (from RHEL 6 to RHEL 7).
I'm doing most of my testing on a separate "sandbox" test bed, but now I'm
close to going live. I'm trying to figure out how to do this with minimal
disruption.
My question: how can I install the new management node and keep
Hi Vinícius
>From the information on the makegocons page it will only create remote
consoles for the devices with BMC ports. As the switches don't have this
you can't get remote serial console.
>From the link you posted you can define the switches so that you can use
xdsh to run command across
Hi Carl,
I wasn’t expecting a so complete answer like this. Thats awesome.
So you don’t have to create a switch definition as described here, on the Add
New Switch Types section:
Hello,
I'm having serious trouble setting up authentication properly on an xCAT
cluster.
The problems appearing are :
* root SSH to nodes from external machines isn't working. Typing the
correct password lead to an authentication failure.
* The "su root" command while connected as a
