[daip] problems with tapedrive

[Patrick P Murphy]

On Mon, 28 Apr 2003 11:09:14 +0200, Joerg-Uwe Pott <pott at ph1.uni-koeln.de>
   said: 

> because our dat tape drive is installed on a different computer without 
> aips-access, i want to copy the raw data with the "dd" comand directly onto 
> the harddisc. i tried blocksize 2880, and also  the standards 512 and 10k. 
> but always i got the errormessage "wrong blocksize". what can i do?

Try 28800.  Most FITS format tapes are written in "blocked" format for
more efficiency, and AIPS fits tapes are no exception.  The default for
FITTP is to write tapes blocked with a factor of 10.

Your systems people may be able to offer advice on local utilities to
"sniff" the tape to see what block size is really on it.

			- Pat (not in the AIPS group, just watching for
                               systems questions from the sidelines)
-- 
 Patrick P. Murphy, Ph.D.              Division Head, CV Computing, NRAO
 Home: http://goof.com/~pmurphy/     Work: http://www.nrao.edu/~pmurphy/
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