Yer, I would certainly recommend running the SQL Server (and RMS if possible) on physical. If this is absolutely not an option, your primary concern with regards to resource allocation should be disk I/O then memory for the SQL Server and memory then CPU for the RMS.

Andy

Thanks a bunch Andy and Kevin. Fully understanding the caveats and thus, my conversation with the client, but to no avail. Guessing that the mindset of “If I throw enough money/virtual power at it, it will work” causes some clouding of the vision. With this environment, I have a phased approach for the main corporate management group and the 5 external groups, so I am guessing at this point I am looking at the 1000-3000 agents deployed out, if not more. But still all virtual….

Yer and just to add my 2 cents, in small environments, virtualizing everything is usually ok but when you start monitoring 100 servers or more, it’s far better from a performance standpoint to provision physical hardware for at least the SQL Server and also the RMS as the environment gets larger.

Andy

All roles support virtualization – with caveats.  See email from yesterday on this:

From: Kevin Holman
Sent: Monday, November 23, 2009 12:35 PM
To: 'msmom@lists.myitforum.com'
Subject: RE: Microsoft Recommendation for Ops Mgr 2007 R2 (RMS) on ESX VM

By the way Karen – you might have seen this – but this is an excellent guide on the topic:

http://www.systemcentercentral.com/BlogDetails/tabid/143/indexid/19135/Default.aspx

From: Kevin Holman
Sent: Monday, November 23, 2009 12:32 PM
To: msmom@lists.myITforum.com
Subject: RE: Microsoft Recommendation for Ops Mgr 2007 R2 (RMS) on ESX VM

Supported config guide:

http://technet.microsoft.com/en-us/library/bb309428.aspx

Operations Manager 2007 Virtualization Support

Microsoft supports running all Operations Manager 2007 components in any physical or virtual environment that meets the minimum requirements that are stated in this document. There are some restrictions on virtualization functionality that can be used with Operations Manager 2007. Specifically, virtual computers running any Operations Manager 2007 component must not make use of any functionality where all activity on the virtual computer is not immediately committed to the virtual hard drive. This includes making use of point-in-time snapshots and writing changes to a temporary virtual hard drive. This is true no matter what virtualization technology is used with Operations Manager 2007.

Therefore – everything CAN be hosted on a VM(s), however – each VM would still need to meet the minimum supported and recommended configurations for your deployment design, agent count, etc…

Looking at the R2 sizing helper spreadsheet, you can see large RMS/DB’s will require significant processor, RAM, and disk, which don’t always make them good candidates for virtualization. 

I don’t know of a website where Microsoft recommends “against” virtualizing the RMS, but I can tell you from a design perspective, those of us in the field almost always recommend physical hardware, which meets or exceeds the minimum specs called out in the sizing spreadsheet, unless the customer has an EXCELLENT performing virtualization platform, and the deployment will not be a very large agent count.

I neglected to add a point that may influence some of the answers. The client is virtualizing the entire SCOM infrastructure on VMWare. My discussion with them pointing out the recommendations of which to virtualize and which roles should not be virtualized met with some resistance as they ‘have the ability to create any type of vm that they need and all the space that would be necessary…you want 7 TB, you got 7 TB”. Thought I should add that information also.

TIA

Hello all, have a couple of questions that I have not been able to bing/google/technet answers to, so where else to ask?

First question: where can I find best practices on co-locating SCOM roles on the same box? I.e., is it ok to run MS & RPT on the same box; ACS, DB & DW on the same, etc.  I did find the excel spreadsheet with recommended sizing, and am attempting to utilize the SCCP, but am not sure I am getting the guidance regarding co-locating SCOM roles.

Second question: I have seen on the SCCP the capability to cluster roles. Do these roles need to be clustered from the beginning or can the role start out as a single server, then be clustered at a later time? Guess this is more of a clustering question, the experience of which I don’t have a great deal of experience in.

TIA

ken

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