nv-l

RE: [NV-L] Netview Recommendation Required!

2007-07-25 05:31:55
Subject: RE: [NV-L] Netview Recommendation Required!
From: "Praveenkumar Nair" <Praveenkumar.Nair AT ustri DOT com>
To: "Tivoli NetView Discussions" <nv-l AT lists.ca.ibm DOT com>
Date: Wed, 25 Jul 2007 14:58:13 +0530
Hi Ahsan,

Windows box can be configured to be an mlm with a little bit limitation
to it.not sure whether linux has the mlm option but AIX and Solaris
has.... 
You can get more details by referring to the mid level manager user
guide 7.1.5.

Regrds,
Praveen
-----Original Message-----
From: nv-l-bounces AT lists.ca.ibm DOT com
[mailto:nv-l-bounces AT lists.ca.ibm DOT com] On Behalf Of Ahsan Ali
Sent: Wednesday, July 25, 2007 1:55 PM
To: Tivoli NetView Discussions
Subject: Re: [NV-L] Netview Recommendation Required!

Bill,

Thanks for this input - its really helpful.

Can Windows MLMs be used with a Linux Netview server or are there some
gotchas to watch out for if we do this?

-Ahsan

On 7/20/07, Evans, Bill <Bill.Evans AT hq.doe DOT gov> wrote:
>
>
> The three variables which are most important to sizing NetView are the
> number of operators, the number of interfaces and the number of traps
per
> second/minute.  The referenced Installation Guide GC32-1842-00
discusses
> this in detail in appendix A.  The book is available online.  The
> calculation of the number of interfaces is more important than the
number of
> nodes.  X-Windows consoles consume more resources than Web Consoles.
>
> A Very Large Network is characterized by:
>
> more than 50000 interfaces
> 10 to 20 web consoles and 3-4 X-windows operators
> 1-5 traps per second with short bursts up to ten per second.
> There are also considerations of SNMP data collection to add into the
> calculation along with external connections to TEC or other systems.
>
> The recommendation for a Very Large Network on Linux is to use a FOUR
> PROCESSOR  system with THREE GHZ processors and a FOUR to SIX GB
memory.
>
> MLMs, one for every 3000 interfaces, would be a possibility and could
move
> your main NetView back to the MEDIUM category (10000-25000 interfaces)
where
> they recommend "two to four processors".  That would assume that most
of the
> traps could be filtered out and the forwarded ones would be in the ten
per
> MINUTE range and polling would be offloaded to the MLMs.  If your
network is
> really "nation wide", MLMs should be placed at remote sites where
practical.
>  They should be "local" to concentrations of monitored devices.
>
> Alternatives for reducing the need are to slow down your network
polling to
> less than five minute cycles and turning off the non-critical traps at
the
> source.  For example, Authentication traps should probably be logged
and not
> handled by traps to NetView unless there is a really critical security
> requirement.  If you can't control traps at the source you can also
> configure NetView to discard them at the first level daemon instead of
> investing resources in logging and processing them.
>
> Good luck.  Count those interfaces and verify the number of traps
expected
> then figure your system size.
>
> Bill Evans.
>
>
>  ________________________________
>  From: nv-l-bounces AT lists.ca.ibm DOT com
[mailto:nv-l-bounces AT lists.ca.ibm DOT com]
> On Behalf Of Usman Taokeer
> Sent: Friday, July 20, 2007 7:39 AM
> To: Tivoli NetView Discussions
> Subject: Re: [NV-L] Netview Recommendation Required!
>
>
>
> Thanks for your input Ahsan
>
> So the combination would be a Linux box with NV 7.1.5? Would a dual
3.0Ghz
> proc machine with 2GB memory be good enough to handle this?
>
> Regards,
> Usman
>
>
>
> On 7/20/07, Ahsan Ali <ahsanali AT gmail DOT com> wrote:
> > Take a look at Appendix A in the Linux / Unix Netview Installation
guide.
> >
> > A trap rate of 5/sec falls in the category of Very Large Network.
With
> > an MLM doing some trap supression/throttling your network might be
> > manageable with the sizing for a Medium sized network.
> >
> > >From Appendix A:
> > ===============================================
> > A two or four-processor system with 2 GB of memory, one or two disk
> > drives, 100 MB Ethernet connection, and an appropriate video card.
> >
> > Example systems:
> >
> >    * For AIX(R) environments: IBM(R) pSeries(R) 7028 or pSeries 550
> > with four processors at 1.45 - 1.6 GHz.
> >    * For Windows(R) and Linux(R) environments: IBM xSeries(R) 365
> > with four processors at 3.0 GHz or xSeries 366 with four processors
at
> > 3.6 GHz.
> > ===============================================
> >
> > As for Linux/Unix vs Windows, it is my opinion that Linux and Unix
are
> > the only way to go if you want to have any sort of life outside of
the
> > Network Operations Center.
> >
> > For the experts on this list, FP01 for 7.1.5 is out so are the early
> > teething problems sorted out?
> >
> > -Ahsan
> >
> > On 7/19/07, Usman Taokeer < usman.taokeer AT gmail DOT com> wrote:
> > > Hi List,
> > >
> > > We have a 2000 node network, spanning nation-wide, media is a mix
of
> ISDN
> > > BRI, Lease Cuircits & VSAT. Approx events/traps per sec would not
be
> more
> > > than 5 per second. Which platform for Netview would you recommend
i.e
> Unix
> > > or Windows and which version 7.1.4 or 7.1.5.
> > >
> > > Is there a need of using MLM's in this scenario or can NetView
server
> handle
> > > these traps.
> > >
> > >
> > > Regards,
> > > Usman
> > >
> > >
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> >
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