Forum Discussion

joe1871's avatar
joe1871
Level 3
10 years ago

Restore Failes with error 2850, media position error 86??

Hi, I am running NBU 7.5.0.5 on a single Master/Media Win2008 R2 server.  I am running NDMP backups of a NetApp Filer (OnTap 8.1).  When trying to restore to that filer, I get the following job lo...
7.5
Backup and Recovery
NetBackup
Windows Server (2003-2008)
  • Yasuhisa_Ishika's avatar
    Yasuhisa_Ishika
    10 years ago

    Any clue in library logs? If medium error or so is recoreded, tape medium or DELL drive is suspicious.

    Mount operation have to be done on DELL, but positioning operation can be done from NetApp using mt command. Are you using Data ONTAP 7-mode or Clustered Data ONTAP? mt command exist on 7-mode.

    https://library.netapp.com/ecmdocs/ECMP1196461/html/cmdref/man1/na_mt.1.html

    I'm not sure, but you may be able to run mt command on Clustered Data ONTAP using node shell(system node run ...).

    Try positioning as below:

    mt -f drive rewind

    mt -f drive fsf 68

    If you get error in positioning, NetBackup is mostly innocent in this case. Check logs in DELL and NetApp. if any error is logged, you may need to check if backup image is really alive in this tape.

joe1871's avatar
joe1871
Level 3
10 years ago

Hey Folks

 

Thank you so much for the great replies.  We are using a Dell loader with two heads.  Both are the same firmware, and are relatively new.  I would not know how to position the tape from the loader interface, it does not have that capability.  It is pretty basic.  I do understand your point however - that this is a tape drive problem and not a NBU problem.  I will shut down one drive, try and force the restore to the other drive.  If that doesn't help, I will see what I can get out of Dell, although I am sure I will be stuck in no mans land with Dell claiming its a Symantec problem.  Not your issue however.  Thanks again.  Very much appreciate the help!