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| Code Block |
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[root@cld-np-19 ~]# nmcli
eno1: connected to System eno1
"Intel X710"
ethernet (i40e), 34:E6:D7:F5:53:0D, hw, port e4434b3a8890, mtu 1500
ip4 default
inet4 192.168.60.129/24
route4 192.168.60.0/24 metric 100
route4 default via 192.168.60.254 metric 100
inet6 fe80::36e6:d7ff:fef5:530d/64
route6 fe80::/64 metric 1024
eno3: connected to eno3
"Intel X710"
ethernet (i40e), 34:E6:D7:F5:53:0F, hw, port e4434b3a8892, mtu 9000
inet4 192.168.61.129/24
route4 192.168.61.0/24 metric 101
inet6 fe80::65:ec7c:7325:3bec/64
route6 fe80::/64 metric 1024
...
... |
Disable the compute node
Then disable the compute node, so that no new VMs will be instantiated on this compute node:
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| Code Block |
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openstack compute service list |
Finds the VM instantiated on this compute node
Then finds all the virtual machines instantiated on this compute node:
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| Code Block |
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openstack server list --all --host cld-np-19.cloud.pd.infn.it |
Migrate the VMs instantiated on this compute node
Then migrate each VM instantiated on this compute node to other hypervisors.
...
- Procedure to be used if the VM was created using a volume (the migration procedure doesn't require a downtime)
- Procedure to be used if the VM was created using ephemeral storage (the migration procedure requires a downtime)
Reinstall the node with AlmaLinux9
Once there are no more VMs on that compute node, reinstall the node with AlmaLinux9 using foreman
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| Code Block |
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[root@cld-np-19 ~]# yum clean all [root@cld-np-19 ~]# yum update -y |
Configure the data network
Once the node has been reinstalled with AlmaLinux9, configure the data network
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The address to be used must be the original one
MTU must be 9000
Reinstall OpenManage
If this is a DELL host, reinstall DELL OpenManage, as explained here
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Check on Nagios that the relevant checks get green
Configure the node as Openstack compute node using puppet
Then configure the node as Openstack compute node using puppet
...