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Dell EMC OpenManage Integration v7.1 for Microsoft System Center for Operations Manager (SCOM) Installation Guide

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Configuration planning for Management Server and Proxy MS with deployment scenarios for supported scalability

The Dell EMC devices can be discovered in the Operations Manager console and Dell EMC OMIMSSC console. One instance of Dell EMC OMIMSSC provides support to only one Management Group(MG) for discovery and monitoring of devices.

You can configure the Management Server and Proxy MS as per the deployment scenarios that is required for your environment.

Table 1. Deployment Scenario for Operations Manager 2012 R2
Monitoring Mode Device Count Number of Management Servers

Scalable

 <=600 For 2000 network devices, see Sizing Guide for required number of Management Servers.

Detailed

 <=120 For 2000 network devices, see Sizing Guide for required number of Management Servers.
  • NOTE: For Operations Manager 2012 SP1, OMIMSSC is not supported.

In a Management Group, for scalable mode you can configure five Management Servers where each Management Server can be connected to four Proxy MS and each Proxy MS can support 250 devices which indicate that under one Management Group, you can scale up to max 5000 nodes.

For detailed mode, each Management Server can be connected to two Proxy MS and each Proxy MS can support 30 devices.

Table 2. Deployment Scenario for Operations Manager 2016
Scenario1: Devices discovery using Operations Manager (SMASH/Network Switch)

Dell EMC devices are discovered as SMASH devices or Network devices in the Operations Manager console. The inputs for SMASH devices are provided in the SMASH monitoring wizard and for network switches in the network device discovery wizard of the Operations Manager console.

Monitoring Mode Devices Count Proxy MS Configured Number of Management Servers Number of Proxy MS Remarks
Scalable <=600 No For 2000 network devices, see Sizing Guide for required number of Management Servers. NA NA
Yes For 2000 network devices, see Sizing Guide for required number of Management Servers. >=3 Each Proxy MS can monitor maximum of 250 devices in scalable mode. For configuration of Proxy MS, refer Table Proxy MS Virtual Machine Configuration.
Detailed <=120 No For 2000 network devices, see Sizing Guide for required number of Management Servers. NA NA
Yes For 2000 network devices, see Sizing Guide for required number of Management Servers. >=4 Each Proxy MS can monitor maximum of 30 devices in detailed mode. For configuration of Proxy MS, refer Table Proxy MS Virtual Machine Configuration.
Scenario 2: Devices discovery using Dell EMC OMIMSSC (iDRAC, Chassis, Network Switch)

Dell EMC devices are discovered as iDRAC, Dell EMC Chassis, or Dell EMC Network switches in Dell EMC OMIMSSC console. The inputs are provided in the Dell EMC OMIMSSC console and during discovery, the IP address range is provided and appropriate credential profile is associated with the job.

Scalable 600–5000 Yes For 2000 network devices, see Sizing Guide for required number of Management Servers. 3–20 Each Proxy MS can monitor maximum of 250 devices in scalable mode. For configuration of Proxy MS, refer Table Proxy MS Virtual Machine Configuration.
Detailed 120–300 Yes For 2000 network devices, see Sizing Guide for required number of Management Servers. 4–10 Each Proxy MS can monitor maximum of 30 devices in detailed mode. For configuration of Proxy MS, refer Table Proxy MS Virtual Machine Configuration.
Table 3. Proxy MS virtual machine Configuration
Components Proxy MS Configuration

CPU Cores

 8

RAM in GB

 32

Mandatory Prerequisites:

  1. Ensure that you do the following registry settings on each of the Proxy MS. Perform the below steps:
    After extracting the OMIMSSC_7.1.0.A00_SCOM.zip file, perform the following steps:
    1. Copy DellEMC-SCOM-Agent-Registry.reg and DellEMC-Proxy-MS-Configuration-Script.ps1 files from the unzipped location on each of the Proxy MS machine in the same directory.
    2. Run the DellEMC-Proxy-MS-Configuration-Script.ps1 from the PowerShell command prompt (with administrator privileges).
      • NOTE:
        • The script stops the agent health services, takes a backup of current registry values in the same directory path.
        • The required Registry Key changes are implemented on the Proxy MS. Refer to the table below for registry configuration on Proxy MS
        • Microsoft Monitoring Agent Health Services are started.
    • Registry Path: "HKLM\SYSTEM\CurrentControlSet\services\HealthService\Parameters"
    Table 4. Proxy MS Registry Configuration
    S.No. Registry Configuration
    1 Set the Persistence Version Store Maximum Registry Path to 131072.
    2 Set the Maximum Global Pending Data Count Registry to 20408.
    3 Set the State Queue Items Registry to 20480.
    4 Set the Persistence checkpoint Depth Maximum Registry to 20971520.
    • CAUTION: Using Registry Editor incorrectly can cause serious problems that might require you to reinstall the operating system.
    • NOTE: The above sample script is provided to simplify configuration of the above required settings on the Proxy MS. Dell EMC does not officially support this script.
  2. The Microsoft public hotfix https://support.microsoft.com/ must be applied on each of the Systems Center Operations Manager Servers and on every Proxy MS in the Scalability setup.
    • NOTE: On the Proxy MS, locate SnmpModules.dll in C:\Program Files\Microsoft Monitoring Agent\Agent\SnmpModules.dll .

Recommendations:

Here are few recommendations that are taken care of for Proxy MS:
  1. You can check for number of devices that you want to monitor and create Proxy MS accordingly. Each Proxy MS can monitor maximum of 250 devices in scalable mode or 30 devices in detailed mode.
  2. Maximum number of Proxy MSes that can be added to a Management server is less than or equal to four.
  3. Symmetrically distribute the Proxy MSes across all the Management Servers in the resource pool.
  4. Ensure not to overload Management Servers by adding more number of proxy MS. The safe limit for a Management Server is to monitor maximum of 1000 devices in scalable mode or 60 devices in detailed mode via Proxy MSes.
  • NOTE: When you add Proxy MS in the Operations Manager group Dell ProxyMSGroup, perform synchronization to apply the required configuration changes in the Proxy MS agent. For more information, see Synchronizing Dell Proxy MS with OMIMSSC and adding ProxyMS to DellProxyMSGroup in Dell EMC OpenManage Integration for Microsoft system Center Version 7.1 Operations Manager User's Guide.

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