Applies to NetApp AFF and FAS systems ONTAP 9 Issue Drives are missing a path to the node due to a faulty port on a SAS card Shelf stack is not seen through IO Module A/B and drives connected through ...Applies to NetApp AFF and FAS systems ONTAP 9 Issue Drives are missing a path to the node due to a faulty port on a SAS card Shelf stack is not seen through IO Module A/B and drives connected through IO Modules A/B are not seen by the Node, refer to the additional information section