Hi, 

We're trying to restore data from tapes that have passed their retention 
policy. We have a Networker 7.2 Server. We know that six tapes hold the 
data we need. So I thought the best way to recover the data is by doing 
a 'scanner -i' command and merge the data from the tapes into the indexes. 
Running the command I can see the SSID's scanning in - but there are some 
errors "read error unknown error 21 - cannot set block size: unknown error 
21". 

At the end of the scanner -i process. I can go into the volumes index and 
can see the relevant tapes. But when I go to client indexes I can't see 
the relevant indexes for the relevant time. And when I go to the clients 
and browse versions of backup none of the relevant backups are there. 

I'm trying to understand whether the read errors and block size errors are 
causing problems or whether there is a deeper problem here. Any feedback 
would be gratefully recieved. 

Cheers, Terry. 

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