[daip] tape trouble

[Craig Walker]

I'm getting into trouble trying to read a tape remotely.  I don't do
that often (I have a local tape drive, but it is a DDS1 and I was given a
DDS3 distribution tape).  Recalling from a former life that I should use
tape 3, I put the tape in Joan's drive on pinon and set the mount inputs
to:

AIPS 2: MOUNT:    Verb to software mount a tape
AIPS 2: Adverbs     Values                 Comments
AIPS 2: ----------------------------------------------------------------
AIPS 2: INTAPE        3                    Tape unit # (0=> 1)
AIPS 2: DENSITY    6250                    Density to set on mount.
AIPS 2: REMHOST    'PINON                     Remote computer name
AIPS 2:              '
AIPS 2: REMTAPE       1                    Remote tape drive number

I then issued a mount command and got:
>mount
AIPS 2: Mounted on-line tape device on local host

That didn't seem right, but to check I issued a TPH on intape 3.
That is doing:
>tph
AIPS 2: ZTPOP2: olopen -99
AIPS 2: ZTPOP2: FAILS TO OPEN ON-LINE - RETRY
AIPS 2: ZTPOP2: olopen -99
AIPS 2: ZTPOP2: FAILS TO OPEN ON-LINE - RETRY
AIPS 2: ZTPOP2: olopen -99
AIPS 2: ZTPOP2: FAILS TO OPEN ON-LINE - RETRY
AIPS 2: ZTPOP2: olopen -99
AIPS 2: ZTPOP2: FAILS TO OPEN ON-LINE - RETRY

Taking about a minute or more for each try.  I think I have a
control C in my immediate future.

Meanwhile, in another AIPS that I happened to have up, I decided
to investigate what drive number I should have used.  After apropos tape,
I typed TAPES to see the available tape.  That got this reaction:

>tapes
AIPS 1: ZABORS: signal 7 received
AIPS 1: ABORT!
Illegal instruction (core dumped)
eolus<11>%


So, that is where I sit as I write this.  Now I'll control C the first
AIPS.  That immediately killed the message window, but had no effect
on the main window for about a minute.  It did dismount "local real tape drive 3".

I then restarted AIPS (having my usual problem that the typing of the user number
appears in the message window despite the cursor having been in the main window
all along - but that's a minor annoyance).  I then typed TAPES and it did
something reasonable.  I suspect the core dump above was an interaction of the
two aips processes.  I now see that drives 2 and 3 are for real time.  So much
for the previous life mentioned above.

I then restarted AIPS (having my usual problem that the typing of the user number
appears in the message window despite the cursor having been in the main window
all along - but that's a minor annoyance).  I then typed TAPES and it did
something reasonable.  I suspect the core dump above was an interaction of the
two aips processes.  I now see that drives 2 and 3 are for real time.  So much
for the previous life mentioned above.

So I set up for disk 4 and now I get connection refused.  Perhaps I can't do 
this from linux to sun.  Switched to mizar (linux) and the tape mounted ok and tph worked.

Craig


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    R. Craig Walker            Array Operations Center
    cwalker at nrao.edu           National Radio Astronomy Observatory
    Phone  505 835 7247        P. O. Box O
    Fax    505 835 7027        Socorro NM 87801   USA
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