[daip] lost file names using FITAB and FITLD

[Mark Reid]

Eric Greisen wrote:
> Mark Reid wrote:
>> Dear AIPSers:
>>
>>     Occasionally I find the following problem.  I write a FITS tape 
>> with multiple files, usually UV and MA files, with FITAB.   Some time 
>> later I read the tape back using FITLD and some of the file names are 
>> lost.  A recent tape yielded the following:
>>
>> AIPS 2: Catalog on disk  2
>> AIPS 2:  Cat Usid Mapname      Class   Seq  Pt     Last access      Stat
>> AIPS 2:    1  501 2005OCT20-A .GEODAT.    1 UV 03-APR-2009 13:34:25
>> AIPS 2:    2  501 NO NAME     .UVDATA.    1 UV 03-APR-2009 13:37:59
>> AIPS 2:    3  501 NO NAME     .UVDATA.    2 UV 03-APR-2009 13:57:52
>> AIPS 2:    4  501 NO NAME     .UVDATA.    3 UV 03-APR-2009 13:58:01
>> AIPS 2:    5  501 NO NAME     .UVDATA.    4 UV 03-APR-2009 13:58:06
>> AIPS 2:    6  501 NO NAME     .UVDATA.    5 UV 03-APR-2009 14:15:13
>>
>> Any idea what went wrong or how to circumvent the problem?
> 
> A question before I start digging - do you write the tape in one go with 
> FITAB or multiple executions? 

   It was a while ago, but probably with multiple executions.  Actually, 
since the first file was on disk 1, and the others on disk 2, I probably 
wrote the first and then the others in a separate job.

> And do you read it in one go or multiple 
> executions of FITLD?

   I read it in one go.

> 
> And is it always this pattern - where the first name is recovered and 
> the later ones lost?

   Sorry I can't remember back to the last time this happened.  I only 
remember seeing this before.

Mark


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Mark J. Reid                 Phone: 617-495-7470
Harvard-Smithsonian CfA      Fax  : 617-495-7345
60 Garden Street             Email: reid at cfa.harvard.edu
Cambridge, MA 02138, USA     Web  : www.cfa.harvard.edu/~reid
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