HA doesn't work in Proxmox 7

RubenV

New Member
Sep 20, 2021
1
0
1
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Last week, i tried configuring an HA cluster with 3 computers. Everything went fine till i tested the system by pulling out one of the nodes. The VM switched over just fine but could not start. It returned me the following error:
1632120709666.png
After hours of trying different sollutions, i found a fix for the problem:

the map /var/lib/lxc/ doesn't contain directories for the CT/VM's not originating on the node you're looking at. The sollution for this problem is to copy the folders of the CT/VM's manualy from /var/lib/lxc/ to the other nodes which do not jet have them at the same location.

I hope this may help anyone struggeling with the same problem as i had. The problem is only present in the (first few) releases of Promxox 7. Another sollution to this problem is to use Proxmox 6 instead of 7.
 

badji

Well-Known Member
Jan 14, 2011
231
25
48
Bonjour,
Sorry, I don't see any shared storage !!! To do H.A you need a shared storage like Ceph on each node of your data center or another shared storage like PBS, TRUENAS ... with the ISO or CT on it.
 

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  • H.A-PVE-Cluster.png
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jsterr

Active Member
Jul 24, 2020
198
33
28
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You need shared storage or local-storage with zfs async replication (Replikation-Feature in GUI). Also make sure that you dont have any local ressources connected to the vm (USB, GPUs, ISOs etc). otherwise HA wont work.
 

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