Re: Can LTO ULTRIUM5 tapes be initialized to *ULTRIUM4 on an 8202-E4C POWER7?

[Jim Oberholtzer <midrangel@xxxxxxxxxxxxxxxxx>]

Lance, are you sure you used all LTO5 cartridges for the LTO4 
initialization?  If so that's new to me and I stand corrected.

Jim Oberholtzer
Chief Technical Architect
Agile Technology Architects


On 12/15/2012 8:03 AM, Jim Oberholtzer wrote:
> I don't think you can initialize an LTO5 tape to LTO4 standards, you
> have to use the correct cartridge for the tape density.  The tape device
> being an internal sled or one that is in a tape library has no real
> bearing on it.   The tape header which is written at the factory (and I
> don't think can be overwritten) determines the density of the tape.  The
> color of the cartridge is for humans.
>
> For grins I tried in on my 3573, and had the same result.  Even tried it
> with LTO3 and LTO2.  Same thing, no joy.
>
> Jim Oberholtzer
> Chief Technical Architect
> Agile Technology Architects
>
>
> On 12/14/2012 5:20 PM, Eric Lehti wrote:
> > >  Do you have a POWER7 8202-E4C with the integrated single-unit tape unit
> > >  that is LTO Ultrium5?
> > >  Can you run this test for me?
> > >
> > >  Insert one of your Ultrium5 tapes.
> > >  Try to INZTAP with parm DENSITY(*ULTRIUM4)   instead of *DEVTYPE.
> > >
> > >  Does it allow you to initialize your LTO Ultrium5 tape to *ULTRIUM4?
> > >
> > >  I will soon need to purchase a bunch of new tapes and have yet not
> > >  decided whether to purchase Ultrium5 or Ultrium4.
> > >
> > >  I am able to continue using our old Ultrium4 tapes because I changed
> > >  INZTAP command default from *DEVTYPE to *ULTRIUM4.     (We were
> > >  previously on a 8203 POWER6 machine)
> > >
> > >  Tape capacity is not much of a consideration because we need only one
> > >  Ultrium4 tapes for a full backup.
> > >
> > >  --