RE: [NV-L] Netview Recommendation Required!
2007-07-20 12:08:59
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.
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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