During NDMP backup to tape "Input/output error" logged in NDMP log: Wed Jun 07 2023 00:28:12 -06:00 [kern_ndmpd:info:XXXX] [XXXXX] INFO: TEST READY: ASC/Q 0401 [LUN Not Ready, Calibration in Process] ...During NDMP backup to tape "Input/output error" logged in NDMP log: Wed Jun 07 2023 00:28:12 -06:00 [kern_ndmpd:info:XXXX] [XXXXX] INFO: TEST READY: ASC/Q 0401 [LUN Not Ready, Calibration in Process] Wed Jun 07 2023 00:28:15 -06:00 [kern_ndmpd:info:XXXX] [XXXXX] INFO: SCSI: OPEN: rst26a NOT READY: error 5: NDMPD unix error: Input/output error This is logged until the tape is ready(loaded) and the backup continues or the backup is aborted
Applies to ONTAP 9 Issue When mounted via NFS over UDP, the client may display ls: reading directory .: Input/output error when trying to list the contents of a directory.