We're running LTO first generation drives on a Linux storage node
server, and prior to creating an st.conf file we saw a lot of these
"tape positioning by record disabled" messages. It made recoveries too
long and caused other problems. As soon as we created that file with the
proper enries, the problems went away. This was within the lasy year.

Our primary server is a Sun running Solaris, and we also had to add some
entries to the st.conf file there, too, but that was a long, long time
ago, way before LTO ever came out. We use an ATL Quantum library on the
Sun, and I remember we had to add these "magic" numbers to the st.conf
file on there. Guess that was the slang term. I've since heard, though,
that this is no longer necessary? Not sure if that has something to do
with newer version of NetWorker, libraries or Solaris? I know I saw some
talk about this in the forum a few months back. Hmm ... We're running
Solaris 2.8 with NetWorker 6.1.1.

Kind regards.

George

James Edwards wrote:
>
> I just got two Sun L25 jukeboxes with HP LTO2 drives.  Backups seem to work
> fine but the old problem with tape positioning for restores is cropping up.
> Cloning is also extremely slow on multiplexed backup sets.  Both of these
> problems are, I believe, because I need the st.conf settings for the LTO2
> drives.
>
> I'm running Solaris 9 and Networker 6.1.2.
>
> I found a few things on the Legato site but it always pays to ask the group
> as well.  Does anyone have the answer.
>
> Thanks.
>
> Jim Edwards
> Systems Manager
> Texas Secretary of State
>
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