I will share what I know from users across about a dozen customer accounts:

- 3590 Magstar drives are the Cadillac/Mercedes of the tape subsystems;
though you did not ask about this, I felt compelled to include it!

- LTO technology is based on IBM's Magstar, but shared in collaboration with
HP & Seagate;  most customers have migrated up from DLT, so are
(essentially) ecstatic about the speed and reliability of IBM's LTO!  (note,
IBM's LTO is what is considered to be the "Cadillac" of the LTO vendors,
although I've heard good things about Dell's and HP's.)  Price:capacity is
attractive - for a reason;  it's intended to compete with DLT (not high-end
tape transports like 3590 or 9840/9940).

- 9840's are the "old" (ie, outgoing) technology from STK;  I would advise
you to consider 9940A's, and maybe migrate to 9940B's -- that is the
emerging, latest tape technology from STK -- while the jury is still out,
initial experiences have been mostly positive (using SN6000 as a SAN-based
conduit to a shared library, looks pretty nice, clean... so far).  STK is
highly motivated to make this work!

Hope this helps!

Don France
Technical Architect -- Tivoli Certified Consultant
Tivoli Storage Manager, WinNT/2K, AIX/Unix, OS/390
San Jose, Ca
(408) 257-3037
mailto:[EMAIL PROTECTED]

Professional Association of Contract Employees
(P.A.C.E. -- www.pacepros.com)



-----Original Message-----
From: ADSM: Dist Stor Manager [mailto:[EMAIL PROTECTED]]On Behalf Of
Joni Moyer
Sent: Wednesday, July 24, 2002 12:18 PM
To: [EMAIL PROTECTED]
Subject: LTO Tape OR 9840


Hello everyone!

The environment here is going to be changing soon... We will be moving off
of the mainframe and onto an AIX server that will be on our SAN.  We will
have 1 STK silo for the tapes for 2 TSM servers.  Right now we are
considering IBM's LTO or STK's 9840.  I was just wondering if anyone out
there has had experience with either one and if so,  what are the pro's and
con's of them?  Has anyone that has worked with LTO know how long it takes
to recover a bad tape?  Considering that they are 100GB tapes, it was
assumed that it would take 5 times as long as it does to recover a Magstar
3590(20 GB).  And also, do the tapes get damaged easily or is that all a
matter of handling them to take them offsite to vaults?  Thank you!!!!

Joni Moyer
Associate Systems Programmer
[EMAIL PROTECTED]
(717)975-8338

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