Safe Hibernation

Alemiz

New Member
Jun 9, 2019
19
4
3
30
Hi,
Im writing simple script what to do after power will be lost and server will run on UPS.
My plan is:
- hibernate all VM
- hibernate node
Or just hibernate node ?
Is it safe ? Wont I loss any data ?

Thanks!
 
Hi,
it depends - where is your data stored?
We have similar problems:
We have a 15node cluster using ceph, so it is important to stop all VMs on all hosts, before the storage can be stopped.
Proxmox will shut down all VMs on a single host and then shuts down this host.
So it is possible that some hosts without VMs but with CEPH-OSDs are going down early and hosts with many or slow VMs cant reach their data anymore, which is bad....
 
Hi,
it depends - where is your data stored?
We have similar problems:
We have a 15node cluster using ceph, so it is important to stop all VMs on all hosts, before the storage can be stopped.
Proxmox will shut down all VMs on a single host and then shuts down this host.
So it is possible that some hosts without VMs but with CEPH-OSDs are going down early and hosts with many or slow VMs cant reach their data anymore, which is bad....
HI, I have currently no cluster. And data are stored on nodes RAID 1. What do you recommend me ?
 

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