Hello Deb:

We have 3 DLT8000 with ADIC auto-loader 32 slot. Two drive are using NDMP
backup and the other is for local, nfs and node backup. Anyway, before we
purchased NDMP back up. We set Eject-sleep, Unload or load sleep to 15
second and it works great. However since we have NDMP then load, unload
sleep I have to set up to 120 seconds.

I know it is a pain to wait such along time to do label tapes, but that is
the only way I can get it going so far without prolems.

Hopes that help.

C-


> I've been searching the web, looking in archives, but no juju.  We had
> the Quantum Guy out here and he fixed our 2 dlt8000 drives with
> swallowed tape leaders.  Did a visual inspection, found no problems with
> the L1000 library, overall.  But, he did witness the problem we're
> having when using Networker to control the tape transport to and from
> the slots and drives.
>
> He believes that Networker isn't waiting long enough for the tape to
> rewind before it's ready to be moved.
>
> My question to you all:  Have you had to tweak the "Eject sleep" and
> "Unload sleep" parameters?  If so, what values work for you?  I've seen
> anecdotal stories of tweaking these values, but no examples about how
> long.
>
> The Quantum Guy called his techie who recommended 120sec for "Unload
> sleep"!  The default is set to 5 sec, so 120 sec seems to be a bit
> unreasonable.  I mean, if I'm labeling 30 tapes, it's going to take 2+
> hours.  My DLT7000s never exhibited this problem.
>
> I've looked at Legato's knowledge base, but nothing useful comes up.
>
> I'm still reading my performance tuning doc... but could use some
> feedback from the list.
>
> Thanks,
>
> deb

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