Migrating lto1 to lto2 then to lto4
I have a new lto4 tape library and need to move some archive data from several lto1 tapes to lto2 media so that I can then migrate it to lto4 media. At least, that is the plan. I have one lto4 library and two lto2 libraries. I don't have a library with lto2/4 drives all in one, so my plan is to move the data from the lto1 tapes to lto2, then load those tapes into my lto4 library and move the data from the lto2 tapes to lto4. I'm using NBU 6.5.3. Any suggestions for alternative ways to accomplish this? I have about 11 LTO1 tapes and once that data is moved over to LTO4, I have 17 LTO2 tapes that I will also have to move over to LTO4.