[daip] [forwarded from Andrew A. West] Re: your mail

[Patrick P. Murphy]

Sounds to me like he has a bad tape.  Does anyone have other insights
based on what he showed?

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Content-Length: 3359
From: "Andrew A. West" <west at bluemoon.astro.washington.edu>
To: "Patrick P. Murphy" <pmurphy at NRAO.EDU>
Subject: Re: your mail
Date: Thu, 6 Jul 2000 10:31:59 -0700 (PDT)
Message-ID: <Pine.GSO.4.10.10007061025400.23512-100000 at bluemoon.astro.washington.edu>

You are right.  I should use fillm for archive data. 

I  tried to do a PRTTP but I got an error:
BLUEMO> PRTTP1: Task PRTTP(release of 15OCT99) begins
BLUEMO> PRTTP1: ZLPOPN: printer file = /tmp/ZLPOPN.a04024
BLUEMO> PRTTP1: Begin reading file     1
BLUEMO> PRTTP1: ZTPWAT: ERROR   3 FOR LUN = 31 IBUFF = 2 TO TAPE
BLUEMO> PRTTP1: ZERROR: IN ZTPWA2 ERRNO = 5 (I/O error)
BLUEMO> PRTTP1: ZERROR: IN ZTPWA2 ERRNO = 5 (I/O error)
BLUEMO> PRTTP1: This usually means PARITY ERROR
BLUEMO> PRTTP1: TAPIO: ERROR   3  READING FILE
BLUEMO> PRTTP1: ZTPWAT: ERROR   3 FOR LUN = 31 IBUFF = 1 TO TAPE
BLUEMO> PRTTP1: ZERROR: IN ZTPWA2 ERRNO = 5 (I/O error)
BLUEMO> PRTTP1: ZERROR: IN ZTPWA2 ERRNO = 5 (I/O error)
BLUEMO> PRTTP1: This usually means PARITY ERROR
BLUEMO> PRTTP1: TAPIO: ERROR   3  READING FILE
BLUEMO> PRTTP1: ZTPWAT: ERROR   3 FOR LUN = 31 IBUFF = 1 TO TAPE
BLUEMO> PRTTP1: ZERROR: IN ZTPWA2 ERRNO = 5 (I/O error)
BLUEMO> PRTTP1: ZERROR: IN ZTPWA2 ERRNO = 5 (I/O error)
BLUEMO> PRTTP1: This usually means PARITY ERROR

THis keeps repeating.

Here is the mount output:

AIPS 1: Mounted Exabyte 8500 EXABYTE EXB-8500 at low density on local ho
        st

I tried to use the unix command mt -f /dev/rmt/0n and all I got was:

usage: mt [ -f device ] command [ count ]

When I run FILLM it stars fine and then gives the parity error similar to
above.  HEre is a truncated example:

BLUEMO> FILLM1: Task FILLM  (release of 15OCT99) begins
BLUEMO> FILLM1: UV data will be written in compressed format
BLUEMO> FILLM1: Shadow flag limit =  2.500E+01 meters.
BLUEMO> FILLM1: *** caution: CPARM(6) is 0 and VLAOBS is blank ***
BLUEMO> FILLM1: ** subarray defaults to 1. It is recommended   ***
BLUEMO> FILLM1: *** to run FILLM with non-blank VLAOBS.        ***
BLUEMO> FILLM1: MCINI: Processing Correlator Code '4   ' with  27
antennas.
BLUEMO> FILLM1: Program = AD435 ; Tape revision number =   26.
BLUEMO> FILLM1: Create 20000513    .CH 0  .   1 (UV)  on disk  1  cno    1
BLUEMO> FILLM1: Ref. date = 20000513 A-C =  1.407413 B-D =  1.407413 GHz
BLUEMO> FILLM1: Create 20000513    .LINE  .   1 (UV)  on disk  1  cno    2
BLUEMO> FILLM1: Ref. date = 20000513 A-C =  1.407413 B-D =  1.407413 GHz
BLUEMO> FILLM1: Create 20000513    .CH 0  .   2 (UV)  on disk  1  cno    3
BLUEMO> FILLM1: Ref. date = 20000513 A-C =  1.407413 B-D =  1.407413 GHz
BLUEMO> FILLM1: Create 20000513    .LINE  .   2 (UV)  on disk  1  cno    4
BLUEMO> FILLM1: Ref. date = 20000513 A-C =  1.407413 B-D =  1.407413 GHz
BLUEMO> FILLM1: FLMFQ: All frequencies will have the same FQ number
BLUEMO> FILLM1: Found 1737+063        :    0  1.562 MHz at IAT   0/
08:48:00.0
BLUEMO> FILLM1: MCINI: Processing Correlator Code '4   ' with  27
antennas.
BLUEMO> FILLM1: ZTPWAT: ERROR   3 FOR LUN = 31 IBUFF = 1 TO TAPE
BLUEMO> FILLM1: ZERROR: IN ZTPWA2 ERRNO = 5 (I/O error)
BLUEMO> FILLM1: This usually means PARITY ERROR
BLUEMO> FILLM1: TAPIO: ERROR   3  READING FILE
BLUEMO> FILLM1: ZTPWAT: ERROR   3 FOR LUN = 31 IBUFF = 1 TO TAPE
BLUEMO> FILLM1: ZERROR: IN ZTPWA2 ERRNO = 5 (I/O error)
BLUEMO> FILLM1: This usually means PARITY ERROR
BLUEMO> FILLM1: TAPIO: ERROR   3  READING FILE
BLUEMO> FILLM1: ZTPWAT: ERROR   3 FOR LUN = 31 IBUFF = 1 TO TAPE
BLUEMO> FILLM1: ZERROR: IN ZTPWA2 ERRNO = 5 (I/O error)


Thanks for your help, Andrew

Andrew A. West
Department of Astronomy
University of Washington


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