It is a lot easier if you can plug the LTO2 tape drive directly on the machine B, that way you can use amvault to copy the dump directly from the LTO2 tapes to the LTO5 tapes.

You can do it from both machines:
- run amvault on machine A to copy the dump to vtapes
- transfer the vtapes to machine B including the tapelist entries and the log.<datestamp>.0 files.
- run amvault on machine B to copy the dump from vtapes to LTO5.

Jean-Louis

On 12/04/2014 06:33 PM, Debra S Baddorf wrote:
If I want to copy my backups that are already on LTO2 tapes  and move them onto
LTO5 tapes,    is   AMVAULT  the way to go?

I will soon get rid of most of my older tape drives and  I want to preserve 
some of the backups
done on those tapes.   Machine A will still have the old tape drive available 
for a while.  I’d like
to read the backups onto disk on machine A,   and then copy them over the 
network,
over to machine B,    and write them to a newer tape drive on machine B.

It looks like  AMFETCHDUMP  will de-compress the files and
try to undo the backups,  so I don’t think I want that.    Should I use AMVAULT
on both machine A and machine B?    I could tell machine A  to read from  the
old tape drive as the secondary media  (per terminology in the man page)
and write to  “disk”  as the  “tertiary”   media.     Then  I copy the files
over to machine B     and reverse the process.    Will this work?


(Machine B  isn’t here yet.  Also,  forgive my up casing the AMANDA words,
but my mac  keeps trying to respell everything and my brain won’t cope with
that today.  )

Deb Baddorf
Fermilab



TL;DR  :

I’ve only got a year’s worth of data on LTO2 tape, so this seems worth doing.  
I had older yet
SDLT tapes before that,  lots of them.  Those I won’t try to convert, but will 
save the
heroics until someone absolutely requires some old data.   Learning a little 
about AMVAULT
wouldn’t hurt me either, so this seems like a worthwhile project.

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