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Operations Manager 2019 Planning Considerations RRS feed

  • Question

  • Hi,

    Can you help me planning SCOM For the Following Requirement (SCOM 2019)

    Windows Servers: 200
    Network Devices: 50
    Linux/UNIX Servers: 50
    APM: Enabled

    this is the plan I created:
    2 Management Servers
    One Management Server For Windows Servers Monitoring (8 GB, 4 Cores Processor)
    One Management Server For Linux/UNIX and Network Servers Monitoring (8 GB, 4 Cores Processor)

    1 SQL Server for DB's (Ops Manager, DW, Report Server)
    (32 GB, 4 Cores Processor, Separate Disks for DB, Temp DB)

    1 Gateway Server
    (8 GB, 4 Cores Processor)

    Please help me to properly plan the SCOM Deployment.

    Also, Is it a mandatory requirement, the deployment of Gateway Server in order to Monitor Linux Servers and network Devices ?

    Thanks in advance!


    Wednesday, August 12, 2020 3:34 PM

Answers

  • Hi,

    Two (2) Management servers should be more than enough for your environment, there's no requirement to have a Gateway server for monitoring Linux/UNIX servers or network devices. Gateway servers are used to enable agent-management of computers that are outside the Kerberos trust boundary of management groups, such as in a domain that is not trusted, or DMZ environments.

    You can use the SCOM sizing calculator (Excel sheet) to calculate your environment, even one (1) Management server is sufficient for your environment size, but I would recommend using at least two (2) Management servers for high availability.

    For the SCOM databases I always recommend a high available alternative, for example a cluster. This ensures you have no single point of failure, if it's a question of cost then your environment should run on a single database server, the hardware specifications should also be sufficient, but make sure you do reserve enough disk space for the databases.

    You can also refer to the official Microsoft documentations below for more information about planning your SCOM environment design:

    Operations Manager Planning Guide
    https://docs.microsoft.com/en-us/system-center/scom/plan-overview?view=sc-om-2019

    SQL Server Design Considerations
    https://docs.microsoft.com/en-us/system-center/scom/plan-sqlserver-design?view=sc-om-2019

    Best regards,
    Leon


    Blog: https://thesystemcenterblog.com LinkedIn:

    Wednesday, August 12, 2020 5:45 PM

All replies

  • Hi,

    Two (2) Management servers should be more than enough for your environment, there's no requirement to have a Gateway server for monitoring Linux/UNIX servers or network devices. Gateway servers are used to enable agent-management of computers that are outside the Kerberos trust boundary of management groups, such as in a domain that is not trusted, or DMZ environments.

    You can use the SCOM sizing calculator (Excel sheet) to calculate your environment, even one (1) Management server is sufficient for your environment size, but I would recommend using at least two (2) Management servers for high availability.

    For the SCOM databases I always recommend a high available alternative, for example a cluster. This ensures you have no single point of failure, if it's a question of cost then your environment should run on a single database server, the hardware specifications should also be sufficient, but make sure you do reserve enough disk space for the databases.

    You can also refer to the official Microsoft documentations below for more information about planning your SCOM environment design:

    Operations Manager Planning Guide
    https://docs.microsoft.com/en-us/system-center/scom/plan-overview?view=sc-om-2019

    SQL Server Design Considerations
    https://docs.microsoft.com/en-us/system-center/scom/plan-sqlserver-design?view=sc-om-2019

    Best regards,
    Leon


    Blog: https://thesystemcenterblog.com LinkedIn:

    Wednesday, August 12, 2020 5:45 PM
  • I'd add a 3rd management server for HA. Way back when we planned our SCOM 2012 deployment & migration, we'd planned on just 2 MSs for our dev environmentbut the Microsoft planning engineer that came out  told us that there was a specific technical reason (something to do with the election for various roles, iirc) for having 3 MSs.

    "Fear disturbs your concentration"

    Wednesday, August 12, 2020 8:02 PM
  • I'd add a 3rd management server for HA. Way back when we planned our SCOM 2012 deployment & migration, we'd planned on just 2 MSs for our dev environmentbut the Microsoft planning engineer that came out  told us that there was a specific technical reason (something to do with the election for various roles, iirc) for having 3 MSs.

    "Fear disturbs your concentration"

    It has to do with the resource pools, Kevin has described it well here:

    https://kevinholman.com/2016/11/21/understanding-scom-resource-pools/

    Also for high availability there’s an official documentation here:

    High Availability and Disaster Recovery
    https://docs.microsoft.com/en-us/system-center/scom/plan-hadr-design?view=sc-om-2019

    Blog: https://thesystemcenterblog.com LinkedIn:

    Wednesday, August 12, 2020 8:08 PM
  • Thank you leon for the swift response!
    this is very helpful!
    Thursday, August 13, 2020 6:39 AM
  • thank you for insights! Really appreciate it! 
    Thursday, August 13, 2020 6:40 AM