[Fiware-lab-federation-nodes] Info about the status of the migration process from PiraeusN to PiraeusU

[Dimitris Kelaidonis]

Dear all,

we would like to inform you that the migration process for the VM from
PiraeusN ot PiraeusU has been started and is in progress.
However, our node faces an issue with limited disk space for glance on our
controller that implies that some VMs cannot be deployed on our node
following the snapshot migration process.

We have started a work for the deployment of an NFS on 100GB (hosted on a
VM on our node) so as to extend the fs data dir of glance. Currently we
have not clear view about the success deployment of this VM. We are working
on this.
Consequently, in case we cannot be able to extend the glance (in the above
way), the rest of the users with their VMs should be moved to another node
with disk capacity. In particular, there are 2 users with 9 VMs that should
be moved.

This should be "on the table" in case PiraeusU cannot host these VMs, so as
to arrange, the FIWARE nodes internally, where these VM will be moved. I'm
preparing a guide with the migration steps followed by PiraeusN and
PiraeusU so as to complement the migration process. So, the only "limit" is
the disk capacity, so as to successfully finalize a safe migration of
FIWARE users' VMs.

We remain at your disposal in case of any clarification.

Best Regards,
Dimitris, on behalf of PiraeusU node team
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