Re: 7trk tape drive

2010-07-26 Thread O'Brien, David W. (NIH/CIT) [C]
To all who responded - Thank you.

If you've asked questions which have gone unanswered, it is because - I don't 
know.
Management asked a question, they didn't elaborate as to why.
 
Thank You,
Dave O'Brien
NIH Contractor

From: Robert A. Rosenberg [hal9...@panix.com]
Sent: Saturday, July 24, 2010 10:19 PM
To: IBM-MAIN@bama.ua.edu
Subject: Re: 7trk tape drive

At 12:25 PM -0400 on 7/23/10, O'Brien, David W. (NIH/CIT) [C] wrote
about 7trk tape drive:

I've been asked to locate a 7 track tape drive in the DC area.

Do the current generation Operating Systems even support them
anymore? Or are you wanting to use them in a legacy (D)OS/360 or 370
system?

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Re: 7trk tape drive

2010-07-26 Thread Ed Finnell
 
In a message dated 7/26/2010 8:22:24 A.M. Central Daylight Time,  
obrie...@mail.nih.gov writes:

If you've asked questions which have gone unanswered, it is because  - I 
don't know.
Management asked a question, they didn't elaborate as to  why.



I was thinking obscure researcher in  remote area published, 'I didn't find 
what we were looking for but did find a  cure for an incurable disease. 
Results and data on supporting tape'  




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Re: 7trk tape drive

2010-07-24 Thread Robert A. Rosenberg
At 12:25 PM -0400 on 7/23/10, O'Brien, David W. (NIH/CIT) [C] wrote 
about 7trk tape drive:



I've been asked to locate a 7 track tape drive in the DC area.


Do the current generation Operating Systems even support them 
anymore? Or are you wanting to use them in a legacy (D)OS/360 or 370 
system?


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7trk tape drive

2010-07-23 Thread O'Brien, David W. (NIH/CIT) [C]
I've been asked to locate a 7 track tape drive in the DC area.

Would anyone know of one?

Thank You,
Dave O'Brien
NIH Contractor

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Re: 7trk tape drive

2010-07-23 Thread Thompson, Steve
-Original Message-
From: IBM Mainframe Discussion List [mailto:ibm-m...@bama.ua.edu] On
Behalf Of O'Brien, David W. (NIH/CIT) [C]
Sent: Friday, July 23, 2010 11:25 AM
To: IBM-MAIN@bama.ua.edu
Subject: 7trk tape drive

I've been asked to locate a 7 track tape drive in the DC area.

Would anyone know of one?

SNIP

You might try asking at Goddard Space (NASA). They had some pretty old
equipment.

Otherwise, I would suggest looking for a Kennedy drive, but I fear they
are out of business.

Regards,
Steve Thompson

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Re: 7trk tape drive

2010-07-23 Thread Ed Finnell
 
In a message dated 7/23/2010 12:51:32 P.M. Central Daylight Time,  
steve_thomp...@stercomm.com writes:

You might try asking at Goddard Space (NASA). They had some pretty  old
equipment.



I was thinking maybe ask a good CE or  local Branch. They can look it up on 
HONE if they're so inclined.




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Re: 7trk tape drive

2010-07-23 Thread Scott Rowe
I don't think there were any 7-track drives left at Goddard when I left, and 
that was 1985.

 Thompson, Steve steve_thomp...@stercomm.com 7/23/2010 1:51 PM 
-Original Message-
From: IBM Mainframe Discussion List [mailto:ibm-m...@bama.ua.edu] On
Behalf Of O'Brien, David W. (NIH/CIT) [C]
Sent: Friday, July 23, 2010 11:25 AM
To: IBM-MAIN@bama.ua.edu 
Subject: 7trk tape drive

I've been asked to locate a 7 track tape drive in the DC area.

Would anyone know of one?

SNIP

You might try asking at Goddard Space (NASA). They had some pretty old
equipment.

Otherwise, I would suggest looking for a Kennedy drive, but I fear they
are out of business.

Regards,
Steve Thompson

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Re: 7trk tape drive

2010-07-23 Thread William Donzelli
 I've been asked to locate a 7 track tape drive in the DC area.

 Would anyone know of one?

Can we ask why someone needs a 7-track?

If it is to read some old, forgotten tapes with important data, I
suggest strongly that you contract with one of the companies that
specialize in reading obsolete formats - the guys that have the
experience and know where all the pitfalls are. Chances are these 7
track tapes are probably ancient, and will need all sorts of gentle
prep work to get successful reads.

If you need to write to a 7 track tape - well, that will leave most of
us wondering why - but the same guys probably can do it. If it is a
*very* small amount of data, I may be able to write it with an old
Mohawk key to tape terminal I have, but it has been years since I
played with the thing.

--
Will

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Re: 7trk tape drive

2010-07-23 Thread zMan
IBM Sterling Forest probably has one. They have at least one of pretty well
everything in their DR center.

On Fri, Jul 23, 2010 at 6:05 PM, William Donzelli wdonze...@gmail.comwrote:

  I've been asked to locate a 7 track tape drive in the DC area.
 
  Would anyone know of one?

 Can we ask why someone needs a 7-track?

 If it is to read some old, forgotten tapes with important data, I
 suggest strongly that you contract with one of the companies that
 specialize in reading obsolete formats - the guys that have the
 experience and know where all the pitfalls are. Chances are these 7
 track tapes are probably ancient, and will need all sorts of gentle
 prep work to get successful reads.

 If you need to write to a 7 track tape - well, that will leave most of
 us wondering why - but the same guys probably can do it. If it is a
 *very* small amount of data, I may be able to write it with an old
 Mohawk key to tape terminal I have, but it has been years since I
 played with the thing.

 --
 Will

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zMan -- I've got a mainframe and I'm not afraid to use it

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Re: 7trk tape drive

2010-07-23 Thread Tony Harminc
On 23 July 2010 18:05, William Donzelli wdonze...@gmail.com wrote:
 On 23 July 2010 12:25, O'Brien, David W. (NIH/CIT) [C] 
 obrie...@mail.nih.gov wrote:
 I've been asked to locate a 7 track tape drive in the DC area.

 Would anyone know of one?

 Can we ask why someone needs a 7-track?

 If it is to read some old, forgotten tapes with important data, I
 suggest strongly that you contract with one of the companies that
 specialize in reading obsolete formats - the guys that have the
 experience and know where all the pitfalls are. Chances are these 7
 track tapes are probably ancient, and will need all sorts of gentle
 prep work to get successful reads.

The trick is to find a place that has built a GMR-heads based drive.
The 7-track -- and indeed all round tape -- technology precedes the
invention (or at least commercialization) of GMR heads (Wikipedia has
1988 for the invention/discovery of GMR), and so requires fairly high
tape speeds for the magneto-inductive heads in question, with the
related risk of physical damage. GMR allows, in theory, infinitely
slow movement of the tape past the read heads, and is thus much more
likely not to damage the tape, even if multiple passes are required
for various reasons.

 If you need to write to a 7 track tape - well, that will leave most of
 us wondering why - but the same guys probably can do it. If it is a
 *very* small amount of data, I may be able to write it with an old
 Mohawk key to tape terminal I have, but it has been years since I
 played with the thing.

The mind boggles at the notion of there being a business case for
writing 7-track tapes. Hobbyists I can understand; nih.gov would be
another thing entirely.

Tony H.

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