Re: Remus with shared storage?

[Chris Myers <chrismyers81@xxxxxxxxx>]

Awesome, thanks very much! I hadn't heard of Ganeti before, looks interesting! They mention zuppoet for nfs, so hopefully it'll be what I'm looking for.

On Tue, Sep 27, 2022, 11:08 AM Florian Heigl <florian.heigl@xxxxxxxxx> wrote:

You'd be better off with a normal cluster stack (pacemaker commonly), especially since with iscsi you'll need strong protection against a VM running twice and shredding its disks. That protection comes in form of SCSI reservations, which cluster software handles for you.

Afaik Remus has never made it to a state where it could reliably act on its own.

Clustering is generally 2 days to bring up and 2 weeks to get a good grip on. Remus has the technical part solved for its case but the rest is not solvable to industrial quality without a lot more.

A normal cluster stack is something you can manage with better chances.

As you're on Debian, please also don't forget Ganeti which is still rare but generally production grade. It normally uses DR:BD but I'm quite sure that isn't a strict requirement.

Chris Myers <chrismyers81@xxxxxxxxx> schrieb am Di., 27. Sept. 2022, 15:32:

I've been searching the web for a few days, but haven't found any posts to this end. I have three Debian 11 Xen hosts with iscsi vm storage. Live migration works awesomely. Is it possible to set up HA with Remus in my situation? So far everything I've found seems to expect a setup with separate storage.