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Old 01-10-2002, 04:12 PM   #1
nabil
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Registered: Feb 2001
Location: MI, USA
Distribution: Debian Linux 100% GNU
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dd, tar and gzip


Hi,
I am trying to extract some important data from a tape directly to a directory in a remote location using dd and tar also compressing during due to amount of data.
e
xample:

tar xvf /tape ....to rsh remote_sytstem/dir with gzip -9 during....

or maybe dd /tape .......to rsh remote_sytstem/dir with gzip -9 during....

or any other way that may work better.

I would like this to work on any Unix system as Linux, Sun or Irix

Thanks
 
Old 01-10-2002, 06:26 PM   #2
nabil
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Another quick quesstion

How can you find out how much data is in a DLT tape ????

I tried du -sk /dev...... did not work ...

Data was originally put in using tar ....

Any Ideas !!!

Last edited by nabil; 01-10-2002 at 06:34 PM.
 
Old 01-10-2002, 11:02 PM   #3
crabboy
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Try this:

Code:
tar -cvf - /dev/rmt0 | gzip -c | rsh remoteMachine " ( cd /tmp; gzip -d | tar -xf - ) "
Make sure your machine can compress faster than you can get the data off the tape. If compression is a bottleneck I'd suggest not using it.

Gary
 
Old 01-18-2002, 04:51 PM   #4
nabil
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No that did not seem to work. For some reason it did not mount the DLT tape drive.
What I am trying to do is find a way to extract data from a DLT tape which has information written to in tar. The problem is data size is huge,..about 20GB and I don't have enough space in local machine. I was hoping to extract this data to a remote location.

Any other though on this,..Perhaps I am trying the hard way...

Is it possible to some how make this DLT drive an exported NFS mount point ???

or

Any other better suggestion is welcome.

Thanks
 
  


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