Re: [PVE-User] High Availaility / Fencing in Proxmox VE 4.x

2017-02-06 Thread Kevin Lemonnier
> > But that contradicts what is written in [4], quote: "Storage communication > should never be on the same network as corosync!". I > understand your motivation to do it the way you did but there has to be > another way (if what the Wiki tells is true). > Sure, but that's the only way I

Re: [PVE-User] High Availaility / Fencing in Proxmox VE 4.x

2017-02-06 Thread Uwe Sauter
Hi Kevin, thanks for explaining your setup. Comments below. Am 06.02.2017 um 12:57 schrieb Kevin Lemonnier: >> * How does fencing work in Proxmox (technically)? >> Due to fencing being based on watchdogs I assume that some piece of >> software >> regularly resets the watchdog's clock so

Re: [PVE-User] High Availaility / Fencing in Proxmox VE 4.x

2017-02-06 Thread Kevin Lemonnier
> * How does fencing work in Proxmox (technically)? > Due to fencing being based on watchdogs I assume that some piece of software > regularly resets the watchdog's clock so that the node isn't rebooted > automatically > by the watchdog. Is this correct? Which software is responsible? I

Re: [PVE-User] looking for recommendations of VLAN setup

2017-02-06 Thread Thomas Lamprecht
Hi, But this setup is exactly what I'd want to avoid. Imagine you have a VM running on Node A that needs VLAN 7. With this kind of setup Proxmox could migrate the VM to Node B or C in case of failure of node A. But if the VM is put on Node C the VM has no connectivity to VLAN 7 which is

Re: [PVE-User] looking for recommendations of VLAN setup

2017-02-06 Thread Uwe Sauter
Hi Alwin, thanks for your suggestion. Comments below. Am 04.02.2017 um 12:04 schrieb Alwin Antreich: […] >> >> What kind of network setup would you recommend? > > We also use multiple VLANs on our network. As linux bridges are > VLAN-aware (bridge-vlan-aware yes), we set the VLAN in the VM

[PVE-User] High Availaility / Fencing in Proxmox VE 4.x

2017-02-06 Thread Uwe Sauter
Dear all, I'm a bit confused by the Wiki pages regarding high availability [1] & [2]. I would appreciate if my questions could be answered. (Searched the mailing list archive but didn't find threads regarding HA that are new enough to cover v4.x) * When does a Proxmox cluster become a HA