3590 upgrade

This is probably a RTFM question.

We just upgraded a 3590-B11 to a 3590-E11 with extended media support.  The
CE completed the upgrade, then we were unable to really use the drive
because it detects all our old 3590 cartridges as 3490 format.  We haven't
done much real hardware stuff in a while so it slipped my mind that we would
have to change the device description to reflect the new model.  I've
deleted the device description and tried to recreate it as an E model, but
the CRTDEVTAP command ends up re-creating the B model device (and not giving
a warning or error).  I've found that the resource name for the device is
also defined as a B model.  Poking around in SST I can see that I can delete
or create resource, but not change them.

1)      Can I write down all the information for the original resource,
delete it and recreate it in SST, and then create the new tape device?

2)      Would auto config take care of this, and, if so, would it require an
IPL?

3)      The 3590 upgrade was purchased new, with installation.  Should my CE
have known how to set up the device/resource on the system, and should he
have done so?  Ever since they started cross training RS/6000 engineers and
AS/400 engineers I've found that a lot of them are just board-swappers
without a lot of useful knowledge.  I'm no longer sure where to set my
expectations.

Much thanks in advance...

James P. Damato
Manager - Technical Administration
Dollar General Corporation
(615) 855-4375
<mailto:jdamato@dollargeneral.com>