RHV: Hotplug disk fails
Issue
- Disk hotplug randomly fails with:
__com.redhat_drive_add': Device 'drive-virtio-diskX' could not be initialized
- Cannot attach disks to VMs
- Cannot use the Backup API to backup VMs
- Commvault Backup Fails repeatedly
Environment
- Red Hat Virtualization 4.1
- Red Hat Enterprise Linux 7.4
- libvirt-3.2.0-14.el7_4.3.x86_64
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