Quorum disk

[Bart Brouwer]

Hello there! I couldnt find a answer here, so i will try to explain my question.

I have 2 proxmox 4.4 servers into a datacenter
1 cluster with this 2 nodes.
1 NAS at home with 500Mbit connection and iSCSI option.

VM's are on both servers on the disk (NO DRDB or NAS).
So, its not HA. But thats not a problem for this moment.

the question is, do i need a quorum disk (iSCSI from the NAS?) ?

So yes, do i use the setup from this page? (Quorum Disk Configuration
https://pve.proxmox.com/wiki/Two-Node_High_Availability_Cluster)
but without the HA settings? or maybe you all have a better suggestion / website?

tnx in advance.

 

[dietmar]

the question is, do i need a quorum disk (iSCSI from the NAS?) ?

No, you do not need a quorum disk (as long as you do not use HA).

 

[udo]

Hi,
and with pve4 you can't use a quorum disk anymore...

Udo

 

[Bart Brouwer]

No, you do not need a quorum disk (as long as you do not use HA).

tnx

Hi,
and with pve4 you can't use a quorum disk anymore...

What do we use with pve4?

 

[udo]

What do we use with pve4?

a third node! a cheap one without VMs is enough.

Udo

 

[mir]

a third node! a cheap one without VMs is enough.

This third node can even be a Raspberry Pi with Corosync configured to be a member of the Proxmox Corosync ring.

 

[udo]

This third node can even be a Raspberry Pi with Corosync configured to be a member of the Proxmox Corosync ring.

Hi,
perhaps a short wiki-page about this will be a nice thing?!

Udo

 

[mir]

Hi,
perhaps a short wiki-page about this will be a nice thing?!

Udo

I have documented it here: https://forum.proxmox.com/threads/rb-pi-for-third-node.28095/

 

[mir]

Available in the Wiki (HOWTO category) as well: https://pve.proxmox.com/wiki/Rasberry_pi_as_third_node

 

[udo]

Available in the Wiki (HOWTO category) as well: https://pve.proxmox.com/wiki/Rasberry_pi_as_third_node

Hi mir,
thanks!

Udo

 

[Bart Brouwer]

Hi!
I have 2 proxmox servers and 1 synology nas. How could i make this config HA?

 

[udo]

Hi!
I have 2 proxmox servers and 1 synology nas. How could i make this config HA?

Hi,
buy an third node - like an raspberry http://pve.proxmox.com/wiki/Rasberry_pi_as_third_node

Udo

 

[Bart Brouwer]

I understand, but i dont have a budget for a new server.

So, i could make a cluster:
2 servers and 1 synology in my datacenter
1 proxmox server at home? (Rasberry pi?))
Could it be a problem when the connection between my dc and home disconnect?

 

[udo]

I understand, but i dont have a budget for a new server.

So, i could make a cluster:
2 servers and 1 synology in my datacenter
1 proxmox server at home? (Rasberry pi?))
Could it be a problem when the connection between my dc and home disconnect?

Hi,
this would not work - the latencie is to high to get quorum.
You must put your raspberry in the DC.

Udo

 

[Bart Brouwer]

Hmm oke. Tnx for your reaction.
I hoped it was oke to have a synology nas as third node

 

[Mitch Maris]

Hmm oke. Tnx for your reaction.
I hoped it was oke to have a synology nas as third node

Bart, if your synology can run virtual machines, just run a small proxmox vm and you'd be set!

 

[Bart Brouwer]

Wauw! Good option mitch! I will try this (virtualbox on synology)
Question.. when i reboot my nas with the 3th proxmox host.. could this be a problem for HA? What kind of behavour do i get?

I could reboot my servers sequential without problems?
Tnx for this advice!