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Re: [ADSM-L] tar with LTO2

2007-07-09 13:58:59
Subject: Re: [ADSM-L] tar with LTO2
From: Jim Zajkowski <jamesez AT UMICH DOT EDU>
To: ADSM-L AT VM.MARIST DOT EDU
Date: Mon, 9 Jul 2007 13:56:37 -0400 
On Jul 9, 2007, at 10:46 AM, Michael Green wrote:


However, tar'ing the actual target directory revealed that the data is
flowing at extremely low rates - less than 100kb/sec.


In the few cases we've had to write actual tars to tape, we usually
run it through a double-buffer using dd:

  tar cf - /the/directory | dd obs=256k | dd obs=256k of=/dev/IBMtape1n

or something similar.  Tune the obs values for performance.

--Jim
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