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  • Subject: Re: Format DASD?
  • From: pytel@xxxxxxxxxx
  • Date: Thu, 2 Sep 1999 17:29:43 -0500

If one only needs fresh system, then scratch install will LOGICALLY remove
everything from DASDs.
There should be an instruction how to do it in Software Installation manual.

If one is really bent on wiping out disk surface, then remove all disk units
from configuration, then run "Initialize and format" procedure on every disk
unit. This will physically rewrite every sector on disk units with binary
zeroes.
This procedure lives in "Disk unit problem recovery procedures" in SST and DST.


Best regards
    Alexei Pytel


Jim Langston <jlangston@conexfreight.com> on 09/02/99 09:55:05 AM

Please respond to MIDRANGE-L@midrange.com

To:   MIDRANGE-L@midrange.com
cc:
Subject:  Re: Format DASD?





As a side bar,

I understand that doing it that way would be about the same as
a PC deletes files, it wipes out the FAT table.  I'm just curious
about actually deleting the files.

I know that there is a DoD delete for PCs, which writes over the
actual data 3 times, once with all 0's, once with all 1's and again
with something like 10101 or such.

I was just curious if the AS/400 had something similar.  It is not
something I would ever need, but I know that the AS/400 at
security level 50 classifies as a very secure machine as far as the
DoD is concerned.

Regards,

Jim Langston

"paats, marc" wrote:

> The best way to to this is a D-IPL (initialize the system). This will wipe
> all the data from your drives.The first thing the system will do is writing
> 0's all over the load source drive and since the AS/400 is a single level
> storage machine the data will be gone, you can count on that. After that the
> As/400 will install LIC and will ipl to DST. Next the drives you are going
> to add will be cleared in the same way. Then install the OS and take it from
> there.
> Make sure you make a backup (two) and you should be all set...Look in the
> backup and recovery guide..
>
> Marc Paats
>
> Paats_Marc@emc.com
>
> -----Original Message-----
> From: T. Jessica Miller [mailto:tealem@wrq.com]
> Sent: Wednesday, September 01, 1999 6:48 PM
> To: MIDRANGE-L@midrange.com
> Subject: Format DASD?
>
> I have a system that needs to be 'wiped clean' and I do not see the best way
> to
> do this.  Is there a way to 'format' the drive so that I can do a fresh
> install
> of OS/400 and be rid of all the old libs, usrprfs, docs, etc.?
>
> Thanks!
>
> Jessica
>
> "Stone, Brad V (TC OASIS)" wrote:
>
> > Hello all!
> >
> > I recently got a mail from a user of one of my tools and he wants it to
> > accept the CCSID of 5035.  Now, the only place I am moving data from their
> > machine is into a temp file that I create on the fly in QTEMP.
> >
> > Does anyone have any ideas of how this can be done?  I looked into the
> CCSID
> > parameter of CRTPF, but it says it ignores this field on *DATA type files.
> >
> > Would the ICGDTA keyword have anything to do with it?  It wasn't quite
> clear
> > what this does from the help text.
> >
> > I guess what is happening is when I copy their data into my temp file,
> > certain text must be getting corrupted since I am not using DBCS files.
> >
> > Thanks!
> >
> > Bradley V. Stone
> > BVS/Tools
> > http://www.bvstools.com
> >
> > +---
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> --
> T. Jessica Miller
> WRQ Technical Engineer
> WRQ Inc, Makers of Reflection and Express Software
>
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