[bv@wjv.com: Re: SCO UW disaster recovery]
- From: Jeff Hyman <scolist@xxxxxxxxxx>
- Date: Wed, 12 Dec 2007 09:38:40 -0500
I am forwarding this to scomsc@xxxxxxx at Bills request.
- Jeff H
----- Forwarded message from Bill Vermillion <bv@xxxxxxx> -----
Date: Tue, 11 Dec 2007 13:59:08 -0500
From: Bill Vermillion <bv@xxxxxxx>
To: Jeff Hyman <scolist@xxxxxxxxxx>
Cc: scomsc@xxxxxxx
Subject: Re: SCO UW disaster recovery
When asked his whereabouts on Tue, Dec 11, 2007 at 13:26 ,
Jeff Hyman took the fifth, drank it, and then slurred:
Bill Vermillion typed (on Tue, Dec 11, 2007 at 03:13:24PM +0000):
| In article <45ccd559-d45a-4a9b-8b4b-5bfa078be4af@xxxxxxxxxxxxxxxxxxxxxxxxxxx>,
| mvsguy <kkinney@xxxxxxxx> wrote:
| [second followup - wjv]
| >> Whats your time worth?
| >D
| >My time? I have to show up at least 8 hours each day. I might as
| >well do some work...
| >I've cleverly disguised my handle to cover the fact that I'm an MVS
| >guy. Mainframes. I know how important DR is.
| >I've had a full on disaster caused by IBM applied hardware
| >maintenance. We only lost 18 hours of data. Later that month, we did
| >our first DR test. We did amazingly well.
| >Thank you both for trying, but buying software is simply not in the
| >cards.
| IMO - as I mentioned in a prevous post - VERIFYING that the data
| on the tape matches exactly is quite important. And actually
| when you perform a restore, run the verify software to make
| sure the data on the HD now matches the tape.
| Years ago - one my Esix 5.3 [system] [I got tired of waiting for
| the SCO 5.3] I ran a program call cktar - which acted remarkable
| like the bit level verify on a program called C-tar that came out
| a bit later.
|
| If you want to put in a bit of effort search for the alt.sources
| hierarchy [probably stored somewher] and look for cktar by
| Wareen Tucker. It will be in the fall of 1990 archives, and
| it will be about a 14K .c file tucked inside a shar archive.
|
| I used to use it all the time when I was backing up to floppies,
| as it would find an error every few disks.
|
| Bill
| --
| Bill Vermillion - bv @ wjv . com
Bill,
You're really shaking my memory :-) Remembering back in the old
days when it was floppies for backup, even before Altos MTU4.
It was the "compression" that was the supertar magic, reducing 30 floppies
down to 3 or 4. It really was a big deal. The list goes on and its
interesting seeing how the industry changes, and is a moving target for
technology.
Hang in there,
Jeff H
If it weren't for 'the old days' we wouldn't be so smart now.
Since the computer field has just gotten to 'buy it and plug it in'
so many of the newer users - eg 1995 onward - have no clue on how
things work.
The compression was so great when data started getting bigger
than the 20MB 1/4" QIC drives :-9
And then the bit verfication instead of just the CRC checking
really made the commercial programs a must-have.
As I mentioned I was struck by how the c-tar which came after
Warren Tucker's cktar. I always wondered if that was the base.
The original is rather small, but it worked.
I'll attach the whole .c code here - as it's only 14k.
The date in the file shows it is now just over 17 years old.
I recall that I compiled it on FreeBSD and it worked.
But then again it is quite simple, so no reason it should not work,
or be easily modified for any newer systems. It's so damned
small it seems like it should not work?
I just compiled it in another directory. It generates
an a.out which when I run it, give the menu. Dynamically
linked and not stripped it comes out at 12,472 bytes.
Bill
PS. You might want to post this to the SCO list if you think it is
appropriate as any time I get a message with a cc to the scomsc
file at jpr.com it gets rejected.
I'm still of the old news reading world, polling the Earthlink news
servers every 30 minutes and running C-News for my local
news input device, and trn for reading it.
--
Bill Vermillion - bv @ wjv . com
----- End forwarded message -----
Best Regards,
Jeffrey Hyman
.--.
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