Check_MK Werk 2983: netapp_api_disk: fixed exception when disks were not included in the raid

ID: 2983 Title: netapp_api_disk: fixed exception when disks were not included in the raid Component: Checks & Agents Level: 1 Class: Bug Fix Version: 1.2.7i4 Some disks on the netapp filer have the raid-state set to unknown and had no physical space information available. The check was unable to handle this.