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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