Also, what will the 'switch' xCAT table look like with multiple VMs on the
same physical host, since the man page for it says "contains what switch
port numbers each node is connected to"?
On Mon, Jul 6, 2015 at 1:31 PM, Josh Nielsen <[email protected]>
wrote:
> Hello all,
>
> Our organization is in the process of shifting our HPC model from an all
> physical/bare metal compute cluster to a virtualized compute cluster,
> making each physical compute node a standalone ESXi host (without vCenter
> licensing or central management). Because we are not using vCenter the
> vm-specific xCAT commands are not of much use to us, but I'm not so much
> concerned about that as with how to redesign/organize the discovery &
> deployment process for VMs on the ESXi hosts.
>
> With our current physical compute cluster we had used the ultra handy SNMP
> switch port discovery method to identify and label nodes with regular
> expressions, creating compute hosts with simple names like node0001,
> node0002, etc. Now the ESXi hosts take on those names and use the SNMP
> switch port discovery method for their naming, IP addresses, etc. But once
> that is done I need to determine how best to deploy VMs on top of those
> ESXi hosts and how discovery will work with them.
>
> Our intended naming scheme will be to name each VM, per host, after the
> name of the ESXi host with letters appended to them. So say ESXi host
> node0001 will have three VMs deployed: we would name them node0001a,
> node0001b, and node0001c. From what I can tell I cannot use the SNMP method
> of identifying those VMs. Since I may have to create the VMs by hand anyway
> (or deploy from a template), perhaps I can use the most tedious method of
> manually populating the MAC addresses, but I am wondering if anyone has any
> better ideas for ways to accomplish that. I would welcome any suggestions
> or pointers for things that I haven't thought of yet.
>
> Thanks!
> Josh Nielsen
>
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