[PVE-User] how to migrate vm's from a almost dead proxmox node?

[Fabrizio Cuseo]

IF your disk images are all on the NFS storage, you only need to copy the VM configuration files in /etc/pve/qemu-server/*.conf from the dead server to the alive server AFTER powering down all the VMs (offline operation).

This is valid for KVM VMs... i don't know for containers (that I don't use).

Good luck, Fabrizio 


----- Messaggio originale -----
> Hey there,
> 
> I'm responsible for a Proxmox-cluster consisting of two nodes and
> around
> 20 virtual machines, shared storage comes via NFS, but no HA. The
> nodes
> are starting from a embedded usb 4GB ATP module: no local hard disks.
> 
> The filesystem of one node became corrupted because the embedded ATP
> stick failed (i/o errors), the filesystem is mounted read-only now.
> The
> virtual machines still running fine on this node, i am able to login
> via
> ssh or via the web interface.
> 
> I want to move the vm's to the other node now, but this is not
> possible
> (^= readonly fs):
> 
> > root at pm3:~# grep 'clusternode ' /etc/pve/cluster.conf
> >   <clusternode name="pm1" votes="1" nodeid="1"/>
> >   <clusternode name="pm3" votes="1" nodeid="3"/>
> > root at pm3:~#
> > root at pm3:~# LANG=C qm migrate 816 pm1 --online
> > unable to create output file
> > '/var/log/pve/tasks/D/UPID:pm3:00023A0C:1ADAE768:518E1E9D:qmigrate:816:root at pam:'
> > - Read-only file system
> > root at pm3:~# LANG=C qm stop 816
> > unable to create output file
> > '/var/log/pve/tasks/0/UPID:pm3:00023A8D:1ADB20BE:518E1F30:qmstop:816:root at pam:'
> > - Read-only file system
> 
> I need to find a way to (online or offline) migrate the virtual
> machines
> to the other node.
> 
> I thought to remove the broken node from the cluster and then startup
> the virtual machine by hand on the surviving cluster, similar to this
> post:
> http://forum.proxmox.com/threads/8017-Migrate-CT-from-dead-cluster-node
> 
> Any hints?
> 
> 
> 
> Freundliche Grüße / Best Regards
> 
>          Lutz Willek
> 
> --
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-- 
---
Fabrizio Cuseo - mailto:f.cuseo at panservice.it
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