NDMP backup to tape fails with 'underrun' error
Applies to
- ONTAP 9
- Tape devices are connected to the cluster through a Fibre Channel (FC) switch
tape.reservations
is set to 'off
'
Issue
- NDMP backup to tape fails.
NDMPD.GZ
reports the following message.
[kern_ndmpd:info:XXXX] [XXXX] ERROR: DATA: Operation terminated: EVENT: I/O ERROR (for /XXXX/XXXX/)
EMS
log reports the following error.
[tape.cmd.scsiErrNullSense:error]: (EMS parameters: deviceType="Tape" deviceName="XXXX" scsiStatus="underrun" opcode="0xa")
BACKUP.GZ
shows like this.
dmp /XXXX/XXXX/(0) Error (Tape write failed.)
dmp /XXXX/XXXX/(0) Tape_close (ndmp)
dmp /XXXX/XXXX/(0) Abort (XXXX MB, XXXX secs, XXXX MBps)
dmp /XXXX/XXXX/(0) Error (DUMP IS ABORTED)