Digging into the dark recesses of my mind:
3006 on the display
-----Original Message-----
From: J Dolliver [mailto:[log in to unmask]]
Sent: Friday, June 02, 2006 12:37 PM
To: [log in to unmask]
Subject: Re: [HP3000-L] Converting A 7980S to a 7980A for a Classic
I was 3rd shift operator back in the late 70's for 20 reeel backups myself.
When we had a runaway tape (tape came off the reel) and went to the plastic
hub, I would use a jucyfruit wrapper (foil) to fake the tape drive out to
rewind the tape. Best thing about those 7978 drives were the noise. You
could tell when a rewind was happening and you could count on it getting to
the BOT marker in 2 1/2 minutes. Time for the next mount.
Trivia !
Does anyone remember the switch settings for an HP3000 series 3 tape reload?
The switch register had 15 or 16 switches.
Joe
-------------- Original message from Steve Gray <[log in to unmask]>:
--------------
> You forgot the very popular 7974A. It was a dual density (1600/800) bpi
format
> tape drive. When I was a CE for HP in the '80s, I believe it was the most
> popular tape drive with my Central Texas customers until the 7980A was
> introduced. It was much easier to service than the 7970E.
>
> Regards,
>
> Steve Gray
> Account Executive
> Abtech Support
> 830.232.6066 direct
> Fax: 830.232.4346
> Email: [log in to unmask]
>
> http://www.abtechsys.com
> http://www.abtechsupport.com
> http://www.abtechnetworks.com
>
> Your source for UNIX hardware, storage solutions, service.
>
> Hewlett Packard * Sun * IBM * Storagetek * Professional Services
>
> ________________________________
>
> From: HP-3000 Systems Discussion on behalf of Denys Beauchemin
> Sent: Fri 6/2/2006 11:13 AM
> To: [log in to unmask]
> Subject: Re: [HP3000-L] Converting A 7980S to a 7980A for a Classic
>
>
>
> The tape drives numbers where 7970 (1600bpi) lo-boy and hi-bay versions,
> 7976 (6250, but OEMed from another vendor, expensive to support,) 7978
> (6250) and 7980(6250, with onboard compression if SX.)
>
> Denys
>
> -----Original Message-----
> From: HP-3000 Systems Discussion [mailto:[log in to unmask]] On Behalf
> Of Larry Barnes
> Sent: Friday, June 02, 2006 10:42 AM
> To: [log in to unmask]
> Subject: Re: [HP3000-L] Converting A 7980S to a 7980A for a Classic
>
> Oh, the memories!!!
>
> As the one and only operator, early in my career, I remember receiving a
> new shipment of tapes from a vendor. I decided to use them that night
> on our full backup; it generally took 9 tapes. After labeling the tapes
> I mounted the first one on the 7933e (I think) drive and began the
> backup. After waiting for a few minutes I saw the reel start to spin so
> I got up to go get a soda or something.
> As I stood up I notice the reel begin to rewind, then I saw the job log
> off??? I reviewed the $stdlist and discovered the backup had aborted
> because of a tape error. I went over to the tape drive and to my horror
> I noticed the tape head was covered in what looked like black soot. HP
> was contacted and they dispatched an engineer to fix the problem. Once
> on site he looked at the drive head and said the drive head was
> destroyed by the oxide from the tape. Since it wasn't covered under
> maintenance we were charged time and material.
> Turns out the tape manufacturer forgot 1 step in creating the tapes.
> They forgot to add the mylar coating over the oxide material. The
> scraper on the drive head scraped the oxide off; giving the tape head
> that sooty look.
> The tape manufacturer was contacted, they took back all the tape and
> sent new ones and they also paid us for the maintenance charge from HP.
>
> Oh the memories!!!!
>
> -----Original Message-----
> From: HP-3000 Systems Discussion [mailto:[log in to unmask]] On
> Behalf Of Jeff Kell
> Sent: Friday, June 02, 2006 8:31 AM
> To: [log in to unmask]
> Subject: Re: [HP3000-L] Converting A 7980S to a 7980A for a Classic
>
> Johnson, Tracy wrote:
>
> > P.S.S. Anyone remember using a tape splicing kit?
>
> For analog audio, yes. For digital, no; but that would be a neat trick
> :-)
>
> Very early in my career, I was a 3rd-shift operator at a service bureau,
> and handled enough 9-track tapes to last a hundred lifetimes. You
> loaded client files from tape, ran whatever jobs, and dumped their files
> back to a new tape.
>
> Expired tapes went into the scratch tape pool. After "x" number of
> cycles through manual loading by operators in a hurry the leaders
> would start to get ragged. You could always snip off the crumpled bits
> and leave a clean end, but eventually there wasn't enough leader before
> the BOT marker for it to load.
>
> So yes, it was one of the weekly duties of the 3rd-shift operator to
> take tapes with > x cycles through the library, strip off 20-30 feet or
> so, and put on a new BOT.
>
> But I haven't seen a tape marker dispenser in a *LONG* time :-)
>
> Jeff
>
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