To avoid this problem you should copy TWICE the objects, BUT: as surely the
objects did not change from the first copy to the second, the second time
you would not copy anything.  I am thinking about this too, because I have
a customer with this problem.  Good luck for us!
Rafael

At 17:40 30/06/1997 EST, you wrote:
>Our site uses a copy storage pool which is stored offsite for disaster
>recovery purposes. We have three 3490E drives, which are used to read
>and write volumes for both the copy storage pool and a primary storage
>pool kept onsite. We have occasionally attempted to read files from a
>primary storage poor cartridge and had the attempt fail with I/O errors.
>When this happens to a primary storage pool volume we have the option
>of recovering files from the copy storage pool. However, a copy storage
>pool volume is presumably just as likely as a primary storage pool
>volume to suffer this kind of problem. If we ran into such a problem,
>it would probably be after a disaster at a regular site, so that we
>would not have the option of retrieving copies of the unreadable files
>from somewhere else. How are other sites dealing with this concern?
>
>
Rafael J. Goldschmidt
GOLDWARE S.R.L.
Elcano 5039
(1427) Buenos Aires, Argentina
E-mail (Internet): rafagold AT cano.com DOT ar
Telefono: 54-1-421 4782