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> <clip> ....iSeries use, you have effectively made another pass across the
> data and mucked up the sector sizes in such a manner that the
> level of knowledge needed to recover data has increased again.
>
> All this nattering simply points out that the risk of data
> recovery is not zero, but it also isn't very probably either.

and would therefore fail a decent audit or court action, and not meet
certain specs like the DOD mentioned earlier.

jim

----- Original Message ----- 
From: "Sue Baker" <smbaker@xxxxxxxxxx>
To: <midrange-l@xxxxxxxxxxxx>
Sent: Tuesday, September 20, 2005 4:34 PM
Subject: RE: complete "scrubbing" of our data from the disk


> Jones, John (US) wrote on Tue, 20 Sep 2005 19:38:07 GMT:
>
> > In all seriousness...
> >
> > Install them in a PC with a SCSI card & use a cheap/freeware
> > DODWipe to zero the drives.
> >
>
> Another option on a machine that is Linux capable is to move an
> IOA  and the disks to a Linux partition, reformat, and use an
> equivalent Linux utility.
>
> While the DST option to destroy disk unit data is relatively
> simplistic, someone would need to be disk technology and i5/OS
> savvy to recover any bits & pieces of data off the drive.  While
> the knowledge needed isn't trivial, I'd imagine that in most
> cases drives from an iSeries that will be resold will go to
> another iSeries customer who isn't going to take the time or
> effort to attempt to discover what was previously on the units.
> And remember as soon as you begin to add the units to a different
> iSeries, they'll get reformated again, potentially get parity
> stripes created (maybe in a different location than they were
> previously), and if added to a disk pool with add & balance
> option, have data placed on the drive.  If the drives don't got
> to another iSeries, as soon as the drives get reformated to non-
> iSeries use, you have effectively made another pass across the
> data and mucked up the sector sizes in such a manner that the
> level of knowledge needed to recover data has increased again.
>
> All this nattering simply points out that the risk of data
> recovery is not zero, but it also isn't very probably either.
>
> -- 
> Sue
> iSeries Advanced Technical Sales Support
> Rochester, MN
>
> -- 
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