Unable to delete VDI: "The provisioning task already running on the Machine Catalog"

Unable to remove the VDI from the catalog with error:"The provisioning task already running on the Machine Catalog"...

Error: "Virtual Disk is Owned By Control Domain" in XenServer

- Storage Repository shows a virtual disk attached to a "Control Domain" - VDIs cannot be deleted with errors that the VDI is not managed by this host. - Multipathing cannot be enable on the SR because the VDIs are not managed by this host...