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From: Al Mac Wheel (macwheel99wowway.com)
Date: Thu Jul 03 2008 - 09:01:35 CDT
, Michael Hill, CITRMS wrote:
> > Before this afternoon's news conference, attorney Scot Boyd, who is
> > representing 11 plaintiffs and potentially "hundreds" more in that
> > lawsuit, couldn't say whether the recovery of the tapes would nullify the
> > lawsuit. But in court filings, he wrote that it wouldn't, noting the
> > thieves could copy the information and return the original tapes.
>Can you detect whether a tape has been copied? Can any techies out there
On IBM OS, you can get statistics on backup media # of usages & estimated life.
For example: this media is rated for 1 million usages, and so far it has
had XX,XXX usages. I do not know how accurate it is, I have not used it
for this purpose. The act of accessing the media to get the latest count,
that is also a usage.
How I have used it for backup media ... I have a mountain of backup media
used in rotation. From time to time some wear out. I can use this to warn
me that some media is approaching the end of its useful life span.
Usages includes reading in a copy to any other media, or upload to some
computer system. Depending on how the data on the media is organized, you
can also get at the # usages of various files, libraries, records
etc. With backup media, they should all be consistent with ... save /
verify / restore, except where you know you used that media to restore a
small volume of problem areas.
A problem with the latter could be that it is a feature of the IBM OS that
any time stuff is accessed using that OS, certain aspects of the
description of the objects are incremented by the usage count, but suppose
the media is accessed by some other OS, that does not have that same
security feature standard, or suppose the crooks have the geek skills to
mess with the OS wherever they are operating, to circumvent or turn off
some of the stuff the OS normally does.
Programmer etc. on IBM Midrange platforms
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