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Anyone running pollers across WAN to DB server?

BryanBecker

We've been running 2 of our 4 remote pollers across the WAN. Out DB server is in 1 data center, these 2 pollers are in a second data center about a 1000 miles away. We have P2P wan circuits between the 2 data centers and the ping time from the poller to the db server is ~35ms. It seems we are starting to see gaps again in the graphs and before I jump ship on this, and move the polling to the other 2 pollers in the same data center as the db, I wanted to see if anyone else was trying the same thing.

Thanks.

BB

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WINNT

Yes, we are running one remote poller across a WAN to the DB server.

Here are our specs:

(1) Orion V8.5.1 SP1 SLX running Web Site/poller/v8.5 Application monitor
(2) Orion V8.5.1 SP1 SLX remote pollers
MS SQL2000 x86 SE
40,000+ elements

All servers are x86 Windows 2003 SP2

BryanBecker

So how many elements do you have on that remote poller? What's the latency between it and the DB server? What are your settings for polls, statistic collection, etc?

Sorry for the questions....just seeing how different your set up is to mine. Thanks.

BB

Network_Guru

I'd be interested in how you have this working as well.

I've tuned my polls per seconds below the recommended values & my polling completion percentage has increased from 98.6% to 99.1% for the remote poller.
I now have it running across a lightly loaded OC12 WAN link (622mbps) to the DB with 36ms latency.
However I still only record SNMP data every 1-2 hours in the CPU, Mem & Utilization graphs.

Thanks for any assistance.

njoylif

apparently the "head geek" is going to do a webinar on this subject. see the top page thwack.com to register.

FYI

BryanBecker

No...I think that webinar is talking about how to use Orion to monitor your WAN links....we are talking about how to get Orion to work with pollers of WAN links.

I tweaked the time the poller issues pings for up/down; rediscovers and stuff but that didn't help. I still have alot of gapping (dots on graphs) on my remote poller. I have to make a decision soon on what to do but my WAN link is very good and I don't see how its any different from what you have.

BB

Network_Guru

Bryan, are you seeing gaps in just SNMP collected data, or ICMP as well?
My ICMP polling charts are fine (polling every 5 minutes).
This proves that it can be done without gaps in the data.

BryanBecker

I'd be interested in how you have this working as well.

I've tuned my polls per seconds below the recommended values & my polling completion percentage has increased from 98.6% to 99.1% for the remote poller.
I now have it running across a lightly loaded OC12 WAN link (622mbps) to the DB with 36ms latency.
However I still only record SNMP data every 1-2 hours in the CPU, Mem & Utilization graphs.
Thanks for any assistance.

NG...you say you tuned BELOW the recommended value? Was that the one provided by the polls per sec program? I'm getting ~96% completion rate on my 2 remote pollers (ones across the WAN).

BB