Hallo,
at the time, we had to make our decision, LTO was quit new and not avail.
with fiber channel connection.
Today, from the performance/throughput aspect I think, it's equal to 3590.
Stability and quality of tape material is an other aspect to look at.

We use four drives on one FC adapter and reach nearly 15 MB/s at peek times
with GBit Ethernet as dedicated network for SAP backups. I would expect the
same results with LTO on FC.

Greetings
Rolf Meyer

> How would your 3590 compare to an IBM Ultrium 3584? I'm currently
> spec'ing a system(s) to run 10 LTO Ultrium tape drives in an
> IBM 3584 which will eventually backup close to 30TB.
> My experience in production is only with DLT7000. We found
> that a Solaris (HAL7000 clone) with 3(ea) 296MHz CPU's and 3GB of RAM
> could keep our tape drives streaming at 5-6MB/sec using Legato's NetWorker
> software. We are currently transitioning to IBM's Tivoli. With LTO's
> 10-12MB/sec writing capability, I'm thinking 1 SCSI controller
> per 2 tape drives, 2 controllers per CPU & 1G RAM per CPU as a
> rough estimate.
>
> Thank you for your help,
>
> -Bern Ruelas
> Sr. Systems Engineer
> Cadence Design Systems
> 2655 Seely Ave.
> San Jose, CA 95134
>
>         From owner-adsm-l AT vm.marist DOT edu Sun Aug 12 01:16 PDT 2001
>         MIME-Version: 1.0
>         Content-Transfer-Encoding: 8bit
>         Date:         Sun, 12 Aug 2001 10:01:38 +0200
>         From: Rolf Meyer <rolf.meyer AT subnet DOT de>
>         Subject:      Re: new TSM server on Solaris
>         To: ADSM-L AT vm.marist DOT edu
>         X-Received: By mailgate2.Cadence.COM as BAA14896 at Sun Aug 12
> 01:16:19 2001
>
>         Hallo Boe,
>         I did this last year and decide to use a SUN E450 with two CPUs, 1
> GB RAM, and as tape devices IBM 3590 (15MB/s speed), now total 8 drives
> connected via fiber channel.
>
>         We save some 20 SAP systems full backup daily and a lot of UNIX/NT
> server, total backuped storage perhaps 1 TB uncompressed.
>
>         Greetings,
>
>         Rolf Meyer
>         System Consultant
>         Info Business Systems GmbH
>         22607 Hamburg
>
>         > I will be moving from OS/390 to Solaris.
>         > What would be a recomended server / tape setup?
>         > I do roughly 20g nightly.
>         > Thanks,
>         > Boe
>
> ,