[gpfsug-discuss] Changing ip on spectrum scale cluster with every node down and not connected to network.

[Jonathan Buzzard]

On 11/10/17 08:46, Andi Rhod Christiansen wrote:

[SNIP]

> It is not possible to turn on the switch ports as the cluster has the 
> same ips right now as another cluster on the new switch.
> 

Er, yes it is. Spin up a new temporary VLAN, drop all the ports for the 
cluster in the new temporary VLAN and then bring them up. Basically any 
switch on which you can remotely down the ports is going to support 
VLAN's. Even the crappy 16 port GbE switch I have at home supports them.

JAB.

-- 
Jonathan A. Buzzard                         Tel: +44141-5483420
HPC System Administrator, ARCHIE-WeSt.
University of Strathclyde, John Anderson Building, Glasgow. G4 0NG