Roy,

I agree with Juraj Salak,

And would add you are playing with fire ! Not only that you are turning a
"Rolls Royce" solution

Tape problems should not be corrected with tickering, get back the DR
copies!! PLEASE .... You will not regret it in 2-3 years. We have more than
100,000 x 3590's on and off site, most are managed via ADSM/tivoli

Create a copy pool called "DISASTER-RECOVER". We do not often use Disaster
Tapes, BUT we do!!! . All data is critical in my business. These go "off
site", of course you can send your original pools offsite as well, but send
them to another, off site storage company, this eliminates double point of
failure.

If you want more advise, you can email me directly.

Stephen Pole
Operations Manager - Senior Geophysicist
Landmark Graphics Corporation (A Halliburton Company)
Level 4, IBM Centre
1060 Hay Street
WEST PERTH WA 6005

Phone : +61 (0)8 9320 9080
Direct  : +61 (0)8 9320 9081
Mobile: +61 (0)4 2121 0157
Residence : +61 (0)8 9409 3012

Email : spole AT lgc DOT com
        spole AT bigpond.net DOT au (private)

NOTE : PERTH WA TIME is GMT + 8.00 hours


 -----Original Message-----
From:   Salak Juraj [mailto:j.salak AT ASAMER DOT AT]
Sent:   Friday, 12 April 2002 5:59 PM
To:     ADSM-L AT VM.MARIST DOT EDU
Subject:        Re: How do I know what tape/s my data is on?

Roy,

I hesitate to answer your question,
because it would support you in a VERY BAD practise.

I find operation with only single copy of data simply irresponsible.

The costs for second copy are very low - only couple of tape media.

Do rethink this design, consider creating backup pool.
This makes it possible to keep tapes from primary pool
unloaded from library but still on-site,
thus eliminating your find-correct-tape problem.

regards
Juraj Salak