We're not running Power Edition, only Network edition. We're running it
on a Sun box and we have one storage node server running the same
version (6.1.1) under Linux. The storage node server is managing an LTO
library. Is it possible that we, too, can turn this off/on to get an
increase in speed as you describe. I'm satisfied with the speed I'm
seeing but just curious if we can make use of the memory as you pointed
out.

Don't really understand this stuff too well but thought that unless
you're using Power Edition, NetWorker will uise TCP/IP stack to run
command and not memory? Maybe I'm thinking of something else.

George

Paul Langford wrote:
>
> thanks
>
> what we found was a file in /debug called noimmediate that networker touched
> and then turned off a feature in both turbopak and power edition.  This
> feature bypasses the internal loopback that networker uses.  When enabled,
> memory is used, greatly speading up the backup process. We are now getting
> over 30MB/s on each LTO2 drive, and our old Exabyte drives realized an
> increase of almost 5MB/s.
>
> -----Original Message-----
> From: Tarjei T. Jensen [mailto:tarjei.jensen AT KVAERNER DOT COM]
> Sent: Wednesday, November 26, 2003 12:19 AM
> To: NETWORKER AT LISTMAIL.TEMPLE DOT EDU
> Subject: Re: [Networker] Poor performance with LTO 2 drives
>
> Paul Langford wrote:
> >We are currently testing a new jukebox, and are not getting anywhere near
> >the performance we expected.
> >
> >Our current setup is:  HP-UX 10, Networker 6.1.2, Exabyte X80 jukebox with
> >6 Exabyte Mammoth 2 drives. Disks are mounted locally. I get about 13M/s on
> >the drives.
>
> HP-UX 10 means that the machine is quite old. It is not surprising that the
> machine has problems performing as expected. I suspect that the performance
> measurement tools does not do any processing on the data that is written to
> the tape drive.
>
> I would not be surprised if the machine runs out of CPU resource (despite
> sar, etc saying otherwise).
>
> greetings,
>
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Note: To sign off this list, send a "signoff networker" command via email
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