I have an R100 hooked up to 6 DLT7k drives.  I just had a 480gb volume
fail at 400gb because it got the following error:

7/15/2002       7:47:38 AM      sdcnbu01        sdcnar01        Warning 48473   
Backup  WRN - Cannot
backup filepath /vol/na03_switch/.snapshot/nightly.0,
NDMP_HALT_INTERNAL_ERROR occurred (path may not exist), skipping

Obviously the path exists since it backed up 400+gb already.  This is a
snapmirror'd volume, hence the path to a snapshot.  Once it got this
error the server placed the drive in a down state and started from
scratch again.

Anyone know why this happens?  Connectivity between server and filer
have been verified with 'set_ndmp_attr -verify sdcnar01' and there are
no messages on the filer.  I don't know what NBU log to look at for more
details (if anyone knows that as well it would be helpful).

Thanks.
-- 
=====================
Jeff Kennedy
Unix Administrator
AMCC
jlkennedy AT amcc DOT com