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I think you could look to increase mon_max_pg_per_osd which is 250 by default. as if you have only 2 osd, and a lot more osd (4 ..6 ) on the other side, maybe they can handle enough pg. (could explain why splitting the disk in mutiple osd is helping)

ah ok ! Do you use the new fast EC from ceph20 ? what is your K & M values ?

from last corosync release https://github.com/corosync/corosync/releases "A new option (totem.ip_dscp) is available to configure DSCP for traffic prioritization. Thanks to David Hanisch for this great improvement." could be interesting for stretched cluster across datacenter where links can be...

what is your pool size replicat number ????? (looks like replicat x7 ????)

setting mac on vnet could be only usefull if you have an ip on the vnet. (so mainly when vnet is used as gateway for the vms). It's only possible with evpn, as the ip/mac is the same on each vnet (anycast ip). Don't make sense to add feature for other zone type. if really needed, you can...

proxmox used apt update / apt dist-upgrade behind pveupdate/pveupgrade, so no problem. Just be carefull to use "apt dist-upgrade" and not "apt upgrade" !

native kernel driver should work, no need to install drivers from mellanox. But connect3x are pretty old and they use a different driver than connectx4,5,6... so I don't known if they are still working fine. (I don't have used them since 6~7years now) I still have connectx4,5,6 in prod with...

They are no difference in package between the no-subscription && enterprise repo. Packages are going first to the no subscription repo, so they could have more bugs (because less people have tested it), before going to the enteprise repo. Best way in both case, is to always test on a...

if you backup storage is slow (or if you are limited with network bandwidth), it can slow down vm write during the backup, if a block is not yet saved. (it's not related to ceph, this is the same for any kind of storage) You can try to enable fleecing option in the backup scheduling advanced...

Was talking with a Guy at fosdem working for the europeean commission. They seem to have migrated recently from vmware......to nutanix.......

Hi, sorry to bump this old thread, but it's finally coming ! https://github.com/corosync/corosync/wiki/Corosync-3.1.10-Release-Notes

I had trid ocfs2 10year ago during 1~2 year, and I had a lot of lock problem if 1node of the cluster was going down. (like full cluster lock during 1~2min, the time that the lock was released). I have done benchmark test last year, and write performance was not super great with new block...

can you send your corosync logs ? journalctl -u corosync do you only 1 corosync link ? or dedicated nic ? shared with other network ?

what is the mtu of your physical interfaces && main bridge ?

seem than freebsd have fixed the checksum bug with virtio-net recently (september 2015 / freebsd15) https://cgit.freebsd.org/src/commit/?id=5a8f33f52ae38bbf12f8f45b8e0f75166805c386 I don't known if it's already available in pfsense/opensense It's related to this bug...

Hi dominik, I'm going to test with a H200 soon. have asked to nvidia support for ai enterprise support (and also about MIG mode not working with windows vms)

I have build the 6.17 kernel with openzfs 2.4 , no more error. If somebody want it, I can share it. (it's unsigned, so not working with secure boot)

seem to be fixed here : https://github.com/openzfs/zfs/pull/17943 I don't known if it's already fixed in current proxmox kernel

a difference with snapshot mode is that the qemu agent is doing a fs-freeze/fs-thawt before the backup, so maybe you can try to disable this ? (they are an vm config option in vm guest agent config). also, not sure that it could help, if you using the agent agent , they are also an extra...

move the file (delete the vm config on source node) to be sure to not restart it again on old01 by mistake, when it's running on NEW01, or you'll break your vm filesystem