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Minimum Servers / Collocation RRS feed

  • Question

  • Hi,

    1.  What are the minimum number of servers required to implement an SCOM Solution (All Roles)?

    2.  What server roles can be collocated on the same server?

    Thanks in advance.

    Tuesday, June 18, 2019 7:42 AM

Answers

  • Hi,

    1.  What are the minimum number of servers required to implement an SCOM Solution (All Roles)?

    Answer: You can implement everything on one (1) single standalone server.

    2.  What server roles can be collocated on the same server?

    Answer: See answer above.

    Normally you would at least have the database and data warehouse on a separate server, the rest can be on one (1) standalone server, depending on your organization's size and limitations.

    Best regards,
    Leon



    Blog: https://thesystemcenterblog.com LinkedIn:

    • Proposed as answer by CyrAz Tuesday, June 18, 2019 8:32 AM
    • Marked as answer by TechNet Junkie Tuesday, June 18, 2019 9:23 AM
    Tuesday, June 18, 2019 7:48 AM
  • So, basically Management Server, Operational DB, Datewarehouse DB, Web Console, Reporting Server, ACS and ACS DB can all be managed on a single server?

    Yes.

    To get high availability (HA), you would need at least one (1) more SCOM management server for redundancy.

    This isn't still enough though, for a fully redundant environment, you would also need to have the SCOM databases redundant.

    The SCOM Reporting Services is not cluster aware so even if you install it on a cluster, it is only installed on a single node, however NLB (Network Load Balancer) is also an option.

    Please see the documentation below:
    High Availability and Disaster Recovery


    Blog: https://thesystemcenterblog.com LinkedIn:

    • Proposed as answer by CyrAz Tuesday, June 18, 2019 8:32 AM
    • Marked as answer by TechNet Junkie Tuesday, June 18, 2019 9:23 AM
    Tuesday, June 18, 2019 8:30 AM
  • Either a minimum of two (2) server SQL cluster or SQL AlwaysOn cluster for all the databases.

    A minimum of two (2) SCOM management servers.

    Note: A Network Load Balancer (NLB) is not supported for the Operations Manager web console server.

    For high availability, the ACS Collector can be installed on two (or more) Management Servers. From there, enable the forwarders by running the task ‘Enable Audit Collection’ on the server to be audited and setup the Override by entering a comma separated list of collectors. This will create a primary and secondary setup with the comma separated values.


    Blog: https://thesystemcenterblog.com LinkedIn:

    Tuesday, June 18, 2019 8:47 AM
  • You can have one (1) SCOM management server and one (1) SCOM database server, however you would not have any high availability, but this is good enough for a minimal environment (if you don't want to have everything on one single server).

    If HA is a requirement, then you'll need at least two (2) SCOM management servers, and the SCOM database in a SQL cluster/SQL AlwaysOn, as I said, it depends on your/your customer's requirements.

    For sizing, you can refer to the SCOM sizing calculator over here:
    How to size your SCOM environment

    For high availability, the ACS Collector can be installed on two (or more) SCOM management servers. 

    For the ACS database high availability, you can also place it on the same SQL Server cluster/SQL AlwaysOn as the SCOM databases.

    Some links:


    Blog: https://thesystemcenterblog.com LinkedIn:

    Tuesday, June 18, 2019 9:05 AM

All replies

  • Hi,

    1.  What are the minimum number of servers required to implement an SCOM Solution (All Roles)?

    Answer: You can implement everything on one (1) single standalone server.

    2.  What server roles can be collocated on the same server?

    Answer: See answer above.

    Normally you would at least have the database and data warehouse on a separate server, the rest can be on one (1) standalone server, depending on your organization's size and limitations.

    Best regards,
    Leon



    Blog: https://thesystemcenterblog.com LinkedIn:

    • Proposed as answer by CyrAz Tuesday, June 18, 2019 8:32 AM
    • Marked as answer by TechNet Junkie Tuesday, June 18, 2019 9:23 AM
    Tuesday, June 18, 2019 7:48 AM
  • Thanks for the reply.

    So, basically Management Server, Operational DB, Datewarehouse DB, Web Console, Reporting Server, ACS and ACS DB can all be managed on a single server?  Please, correct me if I have understood it wrong?

    Just adding one more question:  And to have a HA of SCOM with minimum amount of servers, we would need a remote SQL/SQL Cluster as well as two-2 SCOM Servers holding MS, Web Console, Reporting Server and ACS Roles each?  Please, correct my understanding.

    Thanks in advance.


    Tuesday, June 18, 2019 8:15 AM
  • So, basically Management Server, Operational DB, Datewarehouse DB, Web Console, Reporting Server, ACS and ACS DB can all be managed on a single server?

    Yes.

    To get high availability (HA), you would need at least one (1) more SCOM management server for redundancy.

    This isn't still enough though, for a fully redundant environment, you would also need to have the SCOM databases redundant.

    The SCOM Reporting Services is not cluster aware so even if you install it on a cluster, it is only installed on a single node, however NLB (Network Load Balancer) is also an option.

    Please see the documentation below:
    High Availability and Disaster Recovery


    Blog: https://thesystemcenterblog.com LinkedIn:

    • Proposed as answer by CyrAz Tuesday, June 18, 2019 8:32 AM
    • Marked as answer by TechNet Junkie Tuesday, June 18, 2019 9:23 AM
    Tuesday, June 18, 2019 8:30 AM
  • Thanks for the reply.

    So, minimum of Two-2 Servers either clustered or Always On holding Operational DB, Datawarehouse DB, ACS DB and Reporting DB.  Please, correct my understanding.  Would 

    For SCOM, minimum of Two-2 Servers with each of them having following roles installed:

    • Management Server
    • Web Console
    • ACS
    • Reporting Server (On any one-1 of them)

    Please, confirm if we would be required to install each of the above roles besides Reporting Server on both servers?

    Thanks in advance.

    Tuesday, June 18, 2019 8:39 AM
  • Either a minimum of two (2) server SQL cluster or SQL AlwaysOn cluster for all the databases.

    A minimum of two (2) SCOM management servers.

    Note: A Network Load Balancer (NLB) is not supported for the Operations Manager web console server.

    For high availability, the ACS Collector can be installed on two (or more) Management Servers. From there, enable the forwarders by running the task ‘Enable Audit Collection’ on the server to be audited and setup the Override by entering a comma separated list of collectors. This will create a primary and secondary setup with the comma separated values.


    Blog: https://thesystemcenterblog.com LinkedIn:

    Tuesday, June 18, 2019 8:47 AM
  • You could very well have only two servers hosting every roles (SCOM MS/Web console etc, sql cluster) if your goal is to have the minimum number of servers; but these servers would need to be sized properly.

    Tuesday, June 18, 2019 8:48 AM
  • Thanks for the reply.

    So, you have suggesting only two-2 servers if sized properly can hold both DB plus SCOM Roles and still be in HA?

    Please, confirm my understanding is correct or otherwise.

    Thanks in advance.

    Tuesday, June 18, 2019 8:56 AM
  • Thanks for the reply.

    Is ACS generally configured this way in a HA scenario and just to be clear, both servers would be using the same ACS DB? And second one would automatically takeover in such a configuration?

    Thanks in advance

    Tuesday, June 18, 2019 8:57 AM
  • You can have one (1) SCOM management server and one (1) SCOM database server, however you would not have any high availability, but this is good enough for a minimal environment (if you don't want to have everything on one single server).

    If HA is a requirement, then you'll need at least two (2) SCOM management servers, and the SCOM database in a SQL cluster/SQL AlwaysOn, as I said, it depends on your/your customer's requirements.

    For sizing, you can refer to the SCOM sizing calculator over here:
    How to size your SCOM environment

    For high availability, the ACS Collector can be installed on two (or more) SCOM management servers. 

    For the ACS database high availability, you can also place it on the same SQL Server cluster/SQL AlwaysOn as the SCOM databases.

    Some links:


    Blog: https://thesystemcenterblog.com LinkedIn:

    Tuesday, June 18, 2019 9:05 AM
  • Hi,

     

    For your question, I would like to say yes, you can firstly deploy SQL Always on availability Group and then add SCOM. For more details you can refer to the following article:

    https://social.technet.microsoft.com/wiki/contents/articles/23021.deploying-scom-into-the-alwayson-availability-group.aspx

     

    Due to ACS database, it support Single Active Passive cluster. A pervious article for your reference:

    https://social.technet.microsoft.com/Forums/Windowsserver/en-US/96488c8d-1c26-4e65-9930-3540934cb58f/cluster-compatible-with-audit-collection-services-database?forum=operationsmanagerdeployment

     

    Hope the information can help.

     

    Best regards.

    Crystal

     


    Please remember to mark the replies as answers if they help.
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    Tuesday, June 18, 2019 9:22 AM
  • I was indeed suggesting that you can achieve HA using only 2 servers, if sized properly. 
    Tuesday, June 18, 2019 9:38 AM
  • appreciate input.
    Tuesday, June 18, 2019 10:03 AM