Robert et al;
Will updating the device class make the new drives write files to tapes in E06 
format which have previously been formatted and written to in E05 format? 
Filling volumes would then have a mixture of E05 and E06 formats. Will TSM do 
that?  Are the device drivers, or what not, smart enough to read tape content 
of mixed formats without a hiccup?

Thank you,
Keith