@olivierlambert yes it is a cluster using HA

@poddingue I had some issues with my NVMe drives saturating the bandwidth of my 1Gb link, which is why I switched the DRBD sync to 10Gb links; the rest (management, etc.) remains on the 1Gb link.

I’ve since switched back to Proxmox since I couldn’t stay without an infrastructure indefinitely, but I’ll try deploying it again before the end of the week to retrieve some logs.

Hello,
I’m experiencing an issue on an XCP-ng cluster using XOSTOR.
Environment:

• 3-node XCP-ng cluster
• XOSTOR distributed storage (2x2Tob nvme on each host)
• XOA for management
• Management network 1Gb/s
• Storage Network 10Gb/s

MTU 1500 everywhere (no jumbo frames)

So during VM migrations, creation, destroy XOA loses connection to my host pool, VMs keep running normally Hosts remain reachable (SSH / HTTPS / ping OK), Connection comes back after some time 30s to 1min.

Observations:

• No significant CPU or RAM saturation
• No obvious disk latency issues (iostat looks normal)
• No errors reported on NICs
• xapi process remains active (no crash or freeze)
• The problem is intermittent and seems random.
• i've monitored nic with iftop and i see no bandwith bottleneck et and can see that XOSTOR is using 10gb network only.

Has anyone experienced similar behavior with XOSTOR? And how to Fix it ?
Thanks in advance for your help.