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Re: 19991006: COMET Case Study Tape Problems

>Keywords:199910062045.OAA16711 COMET casestudy tape

Hi Steve, 

I have checked the CODIAC archives and it indicates that you ordered the
high density version of COMET Case Study 001.

Hopefully your tape drive can read high density formatted tapes.
If so you only need to change your  command of:

tar -xvf /dev/rmt/0mnb    

m for "medium density"

to this command....

tar -xvf /dev/rmt/0hnb

h for "high density"

There are (2) tar files on the tape.

The command of:

tar -xvf /dev/rmt/0hnb

should generate the info files first, and then re-executing the tar
command should release the data files.

This is done by the "n" in the command for no rewind.

After executing the tar command the second time you should have all the
data, but execute the tar one more time to make sure there are no more tar
files.Then you can rewoffl.

If your tape machine is not capable of high density reading and you do not
have acces to a high density tape machine we will need to send you another
tape in the low density format.

I hope this clears up some issues for you, if not please contact me again.

Or if you need the low format tape I can speed up that process for you as

Thank you for using the COMET Case Study Library,


Jeff Weber
Unidata/COMET Case Studies
University Corporation for Atmospheric Research


On Wed, 6 Oct 1999, Unidata Support wrote:

> ------- Forwarded Message
> >To: address@hidden
> >From: Stephen Keighton <address@hidden>
> >Subject: COMET Case Study Tape Problems
> >Organization: NOAA
> >Keywords: 199910062045.OAA16711 COMET casestudy tape
> Hello,
> I ordered COMET CAse Study #1 on tape thru the CODIAC system some time ago, 
> and
> just now got around to trying to extract the data from tape to my SAC (HPUX
> 10.2). I followed instructions on the COMET Case Study page, and was
> successfully able to fast-forward the tape to a desried file, but keep getting
> "directory checksum error" each time I try a tar command (xvf or tvf options).
> Also, how would I go about extracting the first tar file on the tape, which
> apparently contains several reference files, such as README.INSTALL? Should I 
> be
> able to do a "tar -xvf /dev/rmt/0mnb README.INSTALL" or is there a 
> filename.tar
> I need to specify?
> Either there is a problem with my tape, or I need some more specific
> instructions. Thanks very much.
> Steve Keighton
> NWSO Blacksburg, VA
> ------- End of Forwarded Message