In our installation we use STK9940B but from what I know a StorageTek 
library (like the L700) using IBM's LTO FC drives should work without any 
problems (now) and you should also expect good performance depending on 
your data, mediaservers and switches.
The problem in a lot of installations that use high performance tape drives 
is to feed the drives at a faster speed then the drives can write the data.
Our drives have a max of 30MB/s without compression but we have never been 
even close to that on large backups.

/johnny

At 10:58 20-02-2003 +0000, Tarbrooke Paul wrote:
>Hi,
>
>I'm using a Storagetek L700 library, installed with 8 x LTO drives
>(seagate).  We run NB3.4.1 datacentre on top of W2K (SP2).  Our servers are
>connected to the drives via gigabit SAN fibre, with  9 media servers having
>a slice of the action. We use multiplexing and multistreaming.
>
>A typical throughput is hard to gauge, but assuming we keep our virus
>checker out of action, we might expect to see between 10,000 and 30,000 K
>per second on the concurrent jobs across the eight drive (according to the
>activity monitor)
>
>LTO has not been without its problems, with a number of firmware upgrades
>needed to enhance reliability, but things have settled down now, and what's
>more, I don't have to pay for the media !
>
>
>Message-ID: 
><OF5D5279E8.F5169260-ON86256CD2.006CE850-86256CD2.006D86A3 AT federated DOT ca>
>From: Karl.Rossing AT Federated DOT CA
>To: "Veritasbu (E-mail)" <veritas-bu AT mailman.eng.auburn DOT edu>
>Subject: [Veritas-bu] LTO vs M2
>Date: Wed, 19 Feb 2003 19:54:45 -0000
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>Hi,
>
>I'm thinking of dumping our Mammoth(m1) library in favour of a library
>with LTO ultrium 230 drives.
>
>I'm currently seeing thruput of 4400KB/sec in my veritas console for 20GB
>db partition. The library and the db partition are located on the same
>drive. The backup is not multiplexed.
>
>What kind of speed can i expect for the LTO backup?
>
>NB4.5FP2BS
>
>Thanks,
>
>Karl
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