Hello Ewald,
To monitor such traffic, you first need to take into account how long you're
going to need the raw flows. I'm monitoring a network of 12 border routers
exporting a total of ~20Mbps of flow data with a server dual processor,
3GHz, 8G RAM and ~ 240G flow disk space. In this configuration I am able to
keep raw flows for about 3 days.
So, if you want maximum flow data, go for maximum disk space. The processor
shouldn't be an issue if you just want to collect and ocasionally look over
the flows. You will need a lot of cpu and ram power if you want to add
custom plugins to filter the flows automatically.
So, if you just want to collect, I would go with option 1; if you want to
analyze and quickly discard the data, I would go with option 2.
As for NFS exports, there are some problems with the locks on the nfdump
files. Look on the list archive to get more details.
Cheers,
Adrian
On Wed, Dec 3, 2008 at 10:52 AM, Ewald Jenisch <[EMAIL PROTECTED]> wrote:
> Hi,
>
> After successfully setting up a test machine with NFSen over the past
> day with the help of fellow NFSen-ers out there I'm planning of
> putting NFSen into production use. For this purpose I'm looking for
> some hints on sizing the target machine:
>
> Traffic profile: Two ISP Uplink routers with 100MBit and 50MBit uplink
> bandwith plus two core Router/Switches (C6500) with ~30 VLAN
> interfaces each that I'd like to track.
>
> What should I consider for sizing?
>
> How about diskspace?
>
> Processor?
>
> Memory?
>
> BTW, target OS will be FreeBSD 7.x
>
>
> Currently I've got two machines that come into mind:
>
> o) Dual Pentium III 1,4GHz with 4GB RAM and ~150GB free space
>
> o) 2x dual-core Opteron 2.2GHz, 16GB RAM with ~15GB free space
>
> Wrt diskspace: How about having the diskspace used by NFSen
> (i.e. where data is captured plus the web-part) on a NFS-accessible
> filesystem? Any caveats?
>
> Thanks much in advance for any clue,
> -ewald
>
>
> -------------------------------------------------------------------------
> This SF.Net email is sponsored by the Moblin Your Move Developer's
> challenge
> Build the coolest Linux based applications with Moblin SDK & win great
> prizes
> Grand prize is a trip for two to an Open Source event anywhere in the world
> http://moblin-contest.org/redirect.php?banner_id=100&url=/
> _______________________________________________
> Nfsen-discuss mailing list
> Nfsen-discuss@lists.sourceforge.net
> https://lists.sourceforge.net/lists/listinfo/nfsen-discuss
>
-------------------------------------------------------------------------
This SF.Net email is sponsored by the Moblin Your Move Developer's challenge
Build the coolest Linux based applications with Moblin SDK & win great prizes
Grand prize is a trip for two to an Open Source event anywhere in the world
http://moblin-contest.org/redirect.php?banner_id=100&url=/
_______________________________________________
Nfsen-discuss mailing list
Nfsen-discuss@lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/nfsen-discuss
