Networker

Re: [Networker] strange tape writing stats

2002-08-08 14:06:43
Subject: Re: [Networker] strange tape writing stats
From: Deb <deb AT TICKLEME.LLNL DOT GOV>
To: NETWORKER AT LISTMAIL.TEMPLE DOT EDU
Date: Thu, 8 Aug 2002 11:08:37 -0700
Robert, where did you pull those entries from for st.conf?

TIA,

deb

Maiello, Robert <Robert.Maiello AT medec DOT com> had this to say,
> Make sure you have the correct quantum line in your st.conf?  I'm using:
> 
> ##### DLT7000s and SDLT support #########
> DLT7k-data      =       1,0x38,0,0xD639,4,0x82,0x83,0x84,0x85,2;
> SDLT1           =       1,0x38,0,0x19639,4,0x90,0x91,0x90,0x91,3;
> 
> 
> Umm, of course, I forgot LTO was called out here, not SDLT.
> 
> Robert Maiello
> Thomson
> Medical Economics
> 
> 
>  -----Original Message-----
> From:   Paul T. DAY [mailto:day AT deas.harvard DOT edu]
> Sent:   Thursday, August 08, 2002 10:22 AM
> To:     robert.maiello AT MEDEC DOT COM; howard.martin AT eds DOT com;
> NETWORKER AT LISTMAIL.TEMPLE DOT EDU
> Cc:     Paul T. DAY
> Subject:        Re: [Networker] strange tape writing stats
> 
>         Does anybody have problems with compression.  Its worse sometioms
> (almost all tapes just use the rated 50G) and then gets better for a
> while.
> 
> Paul
> >
> > Date: Thu, 8 Aug 2002 03:51:26 -0400
> > From: Howard Martin <howard.martin AT EDS DOT COM>
> > Reply-To: Legato NetWorker discussion <NETWORKER AT LISTMAIL.TEMPLE DOT 
> > EDU>,
> >      Howard Martin <howard.martin AT EDS DOT COM>
> > To: NETWORKER AT LISTMAIL.TEMPLE DOT EDU
> > Subject: Re: [Networker] strange tape writing stats
> >
> > I've hit the same problem.
> > NetWorker 6.1.1.Build.238 Enerprise Edition
> > SunOS 5.7 E450
> > DLT7000 and IBM LTO
> > I find the nwadmin GUI under reports speeds by around 25% , the response
> > from our Legato support company was that this was due to networker not
> > polling the drives frequently, to increase the polling rate and improve
> > accuracy was considered unlikely to be a high priority for Legato but I'm
> > going to ask that a RFE is rasied for it.
> >
> >
> > On Wed, 7 Aug 2002 13:26:07 -0400, Paul T. DAY <day AT DEAS.HARVARD DOT EDU>
> wrote:
> >
> > >        When I look in nwadmin/nsrwatch, I see writing at about 4.5
> meg/hr
> > >yet when I do an iostat I see it writing/reading at just over 6 megs/hr.
> > >Is this normal.  I also don't seem to be getting much compresion most of
> > >the time.  Any ideas.
> > >
> > >NetWorker 6.1.1.Build.238 Power/110
> > >SunOS nsrhost 5.8 Generic_108528-05 sun4u sparc SUNW,Ultra-80
> > >Qualstar library with 7 AIT-2 drives
> > >
> > >Paul
> 
> 
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