Hi All,
I'm just starting to think about a SCOM design, the scenario is as follows;
Intended to support roughly 3000 clients and 250 network devices.
One central office hosting the core of the solution
- 3 management servers
- SQL cluster
- 2 gateway servers in the DMZ
Various regional sites
- untrusted domains
- 1-2 gateway server(s) depending on requirements
This is my understanding of the chain of failover that I'm trying to validate:
Agents in untrusted regional domains need to be configured to failover between their local gateway servers using powershell commands, ADI is just for the agent/management server relationship and doesn't apply? The regional gateway servers need to be configured using powershell to failover between the central DMZ gateway servers. The central DMZ gateway servers need to be configured using powershell to failover between central management points.
Regarding the server ratio's:
I've read that you shouldn't have more than 3-4 gateway servers per management server, but how does having a gateway to gateway configuration affect this. For example, we might have 15 regional gateway servers, but their ingress point is 2 central DMZ gateway servers, which then in turn communicate with 3 management points. I'm struggling to find any guidance on how many regional gateway servers I could/should have communicating with a central gateway server, hopefully it's not a 1-1 relationship?
Regarding resource pools:
This is really with network device monitoring in mind, but I'm assuming that we would have a default resource pool for the central management servers, another central pool for network devices if we added dedicated central management servers for network device monitoring, another resource pool for the DMZ gateway servers, and others for each pair of gateway servers at the regional sites? When we set up a network device discovery rule for a regional site, would the resource pool be the regional gateway server resource pool, or a central resource pool containing the actual management servers.
Sorry about the long post, but if anyone can answer all or even part of this it would be much appreciated.
Thanks.