In the case of label libvol you specify overwrite=no and in dsmlabel you
specified -overwrite.  That's why dsmlabel wrote labels and label libvol
didn't.

I like dsmlabel for that first labeling job.  You can use multiple tape
drives and label libvol will only use one at a time.  In some future
release, it will dawn on engineering to add a processes= switch to label
libvol so all the drives can be used, but until then, dsmlabel gets my
vote.

That said, the caveats should be discussed.  Don't use dsmlabel without
extreme care.  Since it isn't aware of ADSM or ADSM of it, you can easily
write over tapes you did not mean to write on.  Understand the tool before
using it!

Kelly J. Lipp
Storage Solutions Specialists, Inc.
www.storsol.com
lipp AT storsol DOT com
(719)531-5926