@olivierlambert said in XCP-NG 9, Dom0 considerations:

BTW, this topic shouldn't be "the offtopic general stuff I need".

Sorry for deviating, just wanted to mention one desiderata besides dom0.

Thanks for the replies

@olivierlambert said in XCP-NG 9, Dom0 considerations:

@mnv For local SR, just use Local ext SR type and you will be thin already.

Hi Olivier,

Sorry for my late reply.

Yes, I am aware of that, however using LVM (like using ZVOL) would offer the disk as a block device directly, thin ext4 ought to be ext4 + the virtual disk + the VM filesystem, ZVOL/LVM should be block device + VM filesystem. There seems to be way less overhead.

ZVOL doesn't play nice with all SSDs, not mines for sure, LVM Thin seems to play much better, write less and take longer to have the same wear as ext4-thin or ZVOL.

I understand this isn't a problem in an Enterprise environment, though...

@olivierlambert

I mean for local storage, I can't seem to use Thin LVM pools as VM disks, allegedly that's by design, isn't it?

@olivierlambert said in XCP-NG 9, Dom0 considerations:

Hi,

Yes, we are working on a first prototype with Alma 10. But we cannot be certain on the outcome, that's why we are not announcing anything until we are happy with a first (even very very early) alpha MVP.

This is such great news...

However, we have a pretty good relationship with the Alma team and keeping the RPM ecosystem is a potential shortcut vs using another distro as a "loosely based" target. Having people happy to assist you is probably the biggest plus on choosing Alma so far.

I agree, those guys are very cooperative on pretty much any front.

Also, don't forget is only loosely based and we'll keep the "dedicated appliance" thing, Dom0 will never be a generalist/customizable distro.

Absolutely, I was mainly referring to their support model and wider HCL, given how Xen is (in my experience) more tolerant of old hardware (after all that's where paravirtualization without HV was born...) it would be amazingly good to keep support for those.

Thanks for your heads up, Olivier, and I hope your internal tests and developements go in the best direction! I can't wait for the next big thing! Only thing I could hope for that is missing (AFAIK) in XCP-NG 8.x is support for LVM Thin storage, that's so good when you have crappy consumer SSDs...

Hello everyone!

I know it's a bit too early, but I see that work on XCP-NG 9 has started and that it will allegedly be its own thing, without that many ties to Xenserver, I would thus like to ask: has dom0 been discussed yet? Would it be worth considering something like Debian (XOA ought to be based on it, right? And Debian has a good lifecycle) or AlmaLinux if you wish to stick to the RHEL compatible ones?

Specifically both seem to be ignoring the recent ISA requirement shenanigans, and to be supporting the most hardware (Alma for instance is reviving many EOL'd drivers, that would otherwise make most hardware unusable under RHEL or its 1:1 clones).

Would that prove beneficial for XCP-NG? More hardware ought to mean more adoption?

Thanks in advance!