thanks for your response !!

today , I tested backup by Networker.
next sentence is process of my test
first. I changed the attribute of Max consecutive error value from 20 to
100
after I labeled media that isn't in media index databse
Backup executed  with success.
but I can't use two tape that don't get relabel( =: i used six media and
it had be labeled)
because hp's dds4 drive is bad , media db is broken. don't it ?

will test a few day about it .  media db often is broken

I don't know that media database is broken ?

it concern exceed of max consecutive error. isn't it ?

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