How to persistently connect the disk to the VM

Solution Verified - Updated -


How to connect the fiber channel (multhipath) disk to the VM?

During runtime attaching the disk works with the following command:

virsh# attach-disk <domain> /path/to/disk/ vdX

The guest sees the storage as /dev/vdX but if I reboot the host, the configuration is lost and the storage did not remain attached to the guest.
When trying to add the command attach-disk parameter --persistent, I get an error:

On the server host:

virsh # attach-disk <domain> /path/to/disk/ vdX --persistent

error: Failed to attach disk
Requested operation is not valid: cannot modify the persistent configuration of a domain


  • Red Hat Enterprise Linux 5
  • KVM

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