Linda Mooney pisze:
Greetings!
I am in the process of retiring 3 RAMAC 2 racks, each with a 3990 mod 6 controller, and 1 RAMAC 3 rack, with a 9293 controller. All data has been moved to new DASD. The RAMAC DASD will be surplused so I have to be sure that the data has been wiped clean and
In a message dated 7/6/2009 1:50:12 P.M. Central Daylight Time,
barry.a.schw...@boeing.com writes:
But even if the space has been allocated to a subsequent file, there is
no guarantee that any data was actually written the disk.
Think what I did on the ICEBERG-low these many moons was
Of Gerhard Postpischil
Sent: Thursday, July 02, 2009 5:29 PM
To: IBM-MAIN@bama.ua.edu
Subject: Re: ERASEDATA - DASD disposal
Eric Bielefeld wrote:
I always wondered if it was possible to read data if binary zeros or
some other pattern were written to the disk. I thought that it would
be very hard
On Fri, 3 Jul 2009 07:24:02 -0400, Klein, Kenneth wrote:
Even more insidious are the methods of reading how strongly the
magnetized bit is positive or negative. If the bit is on, but not as
strongly as others, it might have been off before getting flipped. If
very strongly on it might have been
I am in the process of retiring 3 RAMAC 2 racks, each with a 3990 mod 6
controller, and 1 RAMAC 3 rack, with a 9293 controller. All data has been
moved to new DASD. The RAMAC DASD will be surplused so I have to be
sure that the data has been wiped clean and nothing is recoverable - w
On Thu, Jul 2nd, 2009 at 10:13 PM, Jim Marshall wrote:
It really depends on your definition of Wiped Clean. No amount of
passes will get rid of the data where it could not be recovered.
Have to measure the worth of the data if someone really, really
wanted to recover it.
My attitude has
On Tue, 30 Jun 2009 23:36:08 +, Linda Mooney wrote:
Do you consider the 4 passes with TRKFMT enough to be sure that the  data
is really gone?
http://www.h-online.com/security/news/112432
Norbert Friemel
--
For
. Systems Programmer
Milwaukee, Wisconsin
414-475-7434
- Original Message -
From: Norbert Friemel nf.ibmm...@web.de
Newsgroups: bit.listserv.ibm-main
To: IBM-MAIN@bama.ua.edu
Sent: Thursday, July 02, 2009 11:08 AM
Subject: Re: ERASEDATA - DASD disposal
On Tue, 30 Jun 2009 23:36:08 +
Thanks, Matthew! I'll have a look at the REVAL
Linda
- Original Message -
From: Matthew Stitt mathwst...@bellsouth.net
To: IBM-MAIN@bama.ua.edu
Sent: Wednesday, July 1, 2009 3:33:02 PM GMT -08:00 US/Canada Pacific
Subject: Re: ERASEDATA - DASD disposal
The last time I needed
Eric Bielefeld wrote:
I always wondered if it was possible to read data if binary zeros or
some other pattern were written to the disk. I thought that it would be
very hard, which the article quoted seemed to agree with. But then, I
noticed that the writer of the article didn't sign his
: IBM Mainframe Discussion List [mailto:ibm-m...@bama.ua.edu] On
Behalf Of Gerhard Postpischil
Sent: Thursday, July 02, 2009 4:29 PM
To: IBM-MAIN@bama.ua.edu
Subject: Re: ERASEDATA - DASD disposal
Eric Bielefeld wrote:
I always wondered if it was possible to read data if binary zeros or
some other
On Thu, 2 Jul 2009 16:49:24 -0500, Tom Harper wrote:
Gerhard,
According to this source, that theory [track edge residue]
is in question:
http://www.h-online.com/security/Secure-deletion-a-single-overwrite-will-do-it--/news/112432
(watch the wrap).
Thanks. I long wondered, given that disk
At 18:20 -0500 on 07/02/2009, Paul Gilmartin wrote about Re:
ERASEDATA - DASD disposal:
The cited article and its followups point out that it's
a greater concern to erase all temporary copies of the
file (how often do you S(ave) during an E(dit) session?)
This issue is handled by doing
Contractor
From: IBM Mainframe Discussion List [ibm-m...@bama.ua.edu] On Behalf Of Linda
Mooney [linda.lst...@comcast.net]
Sent: Tuesday, June 30, 2009 7:36 PM
To: IBM-MAIN@bama.ua.edu
Subject: ERASEDATA - DASD disposal
Greetings!
I am in the process
/Canada Pacific
Subject: Re: ERASEDATA - DASD disposal
Linda,
How many concurrent Trkfmt commands are you running?
Are you running simultaneous commands against adjacent UCBs?
IIRC the Ramac has 2 3390 addresses per drawer sharing the read/write assembly.
I would only run 4 commands against
-
From: Linda Mooney [mailto:linda.lst...@comcast.net]
Sent: Tuesday, June 30, 2009 4:36 PM
To: IBM-MAIN@bama.ua.edu
Subject: ERASEDATA - DASD disposal
I am in the process of retiring 3 RAMAC 2 racks, each with a 3990 mod 6
controller, and 1 RAMAC 3 rack, with a 9293 controller. All data has
push you closer to a physical destruction scenario.
Good luck.
-Original Message-
From: IBM Mainframe Discussion List [mailto:ibm-m...@bama.ua.edu] On Behalf Of
Linda Mooney
Sent: Tuesday, June 30, 2009 6:36 PM
To: IBM-MAIN@bama.ua.edu
Subject: ERASEDATA - DASD disposal
Greetings
...@boeing.com
To: IBM-MAIN@bama.ua.edu
Sent: Wednesday, July 1, 2009 11:57:18 AM GMT -08:00 US/Canada Pacific
Subject: Re: ERASEDATA - DASD disposal
I hope you realize that nothing is recoverable is very vague. Most of the
time, the phrase means not worth the effort to recover. If you have
- Original Message -
From: Barry A Schwarz barry.a.schw...@boeing.com
To: IBM-MAIN@bama.ua.edu
Sent: Wednesday, July 1, 2009 11:57:18 AM GMT -08:00 US/Canada Pacific
Subject: Re: ERASEDATA - DASD disposal
I hope you realize that nothing is recoverable is very vague. Â Most
Greetings!
I am in the process of retiring 3 RAMAC 2 racks, each with a 3990 mod 6
controller, and 1 RAMAC 3 rack, with a 9293 controller. All data has been
moved to new DASD. The RAMAC DASD will be surplused so I have to be sure that
the data has been wiped clean and nothing is
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