Hello,
Using xCAT-server-2.14.6 on CentOS 7.7 x86_64 I'd like to achieve what I
guess is a quite standard setup, i.e. foreach node
- discovering it (using swith-based discovery) through one of its nic
- once discovered, netbooting it on another one (WITHOUT having the
discovery-nic or any other nic configured)
- with no or minimum manual additionnal configuration (such as manually
registering <hostname>-nic to DNS or things like this...)
I assume this is a mandatory setup when using infiniband for instance,
which I don't use yet (but soon).
For now I successfully managed to have the following setup
- a node has:
eth0 connected to vlan1 for ipmi (shared mode)
eth2 connected to vlan2 for data
other nics disconnected
- its (only) ip address is calculated via a hosts regexp/formula
As I pxe from eth2, everything goes through it, from xNBA to genesis to
netboot image, as expected thus the node ending netbooting it's netboot
image from eth2.
[Ipmi is configured in discovery with a chain bmcsetup task.]
Ideally, I'd like to use the same eth0 nic to perform discovery and pmce
the node discovered, netboot via eth2 on an image which gets only eth2
configured but I'm not really sure how to achive this for the following
reasons :
- my dynamic range is is the same subnet as the subnet my nodes netboot
in : this would cause the infamous multiple nic in the same subnet
tricky case I discussed in previous threads here.
- I'v been told primarynic was deprecated
- despite man page of noderes:installnic I'm note really sure how it is
supposed to be used as I don't have this attribute configured and my
nodes get netbooted on the eth2 nic they've initially pxe'ed
- same about nic:nicips : I did not manage to make them work with a
formula and I'm not sure it they are related to what I want to achieve.
Can you give me some hint about the proper way to do this ?
Thanks
--
Thomas HUMMEL
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