Knowledge Base
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Resynchronizing a dual-MN database and upgrading the zsha2 HA suiteResynchronize an out-of-sync database between two ZStack Cloud management nodes, then upgrade the zsha2 HA suite and verify platform health.Updated: 2026-08-17Physical NIC disconnect and reconnect alarms caused by an unsupported SFP moduleResolve repeated physical NIC disconnect and reconnect alarms by identifying an unsupported SFP module and replacing it with a vendor-approved module.Updated: 2026-08-17VM startup fails with "mediated device not found" after vGPU repartitioningWhen a VM bound to a vGPU (virtual GPU) fails to start with a libvirt \"device not found: mediated device\" error, the broken vGPU binding can be removed and the VM started on a healthy vGPU.Updated: 2026-08-17Volume snapshot creation fails with "unable to find volume" due to a path mismatchFix a mismatched primary-storage UUID and installPath between the management database and the actual qcow2 path on the host, then merge old snapshots.Updated: 2026-08-17Deleting an abnormal empty storage pool from a ZStone clusterWhen a ZStone Ceph cluster shows HEALTH_WARN because of an empty storage pool with a malformed name, the pool can be removed with ceph osd pool delete after the customer confirms the change plan, global HA is disabled, and the database is backed up.Updated: 2026-08-17