Yes.
So if you upgrade your drives from B's to E's, you get double the data on
the tape (10 GB native at 128 tr, 20 GB native at 256 tr.)

If you upgrade your cartridges from J's to K's and write on them with the
3590E's at 256 tr, you get twice as much tape in the cartridges, so it
doubles again, to 40 GB native.

So with compression, you will get over 80 GB on the cartridge.

-----Original Message-----
From: Tyree, David [mailto:[EMAIL PROTECTED]]
Sent: Wednesday, April 04, 2001 3:34 PM
To: [EMAIL PROTECTED]
Subject: Re: 3590-B1A to 3590-E1A


Will the 3590E write to the J's as 256 tracks?

-----Original Message-----
From: Prather, Wanda [mailto:[EMAIL PROTECTED]]
Sent: Wednesday, April 04, 2001 2:23 PM
To: [EMAIL PROTECTED]
Subject: Re: 3590-B1A to 3590-E1A


Ditto.  No problem with J's &K's together.
And the 3590E's read and write the J's just fine.

-----Original Message-----
From: Richard Sims [mailto:[EMAIL PROTECTED]]
Sent: Wednesday, April 04, 2001 1:39 PM
To: [EMAIL PROTECTED]
Subject: Re: 3590-B1A to 3590-E1A


>        Now the question, we have been told that the new drives will
>read and write to our current "J" tapes just fine. They will read the
>128 tracks 256 tracks. As we cycle in the older tapes in for reclaiming
>they all
become
>256 track at some point. We generally have about 5-6 tapes a day go
>offsite and about that many returning each day as well. Is this
>correct??

I can't verify how many of your tapes go offsite each day, but can verify
that J tapes that are re-used get written as 256-track in 3590E drives and
thus double your capacity.

>        I also understand the E1A drives will work the best if we go to
>the newer "K" tapes, however you can't have "J" and "K" tapes in the
>library at the same time for some reason.

Yes, you can, and many of us do.  Refer to the server README file for
particulars on upgrading your drives in a TSM environment.

  Richard Sims, BU

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