N-Central Services Reference Manual
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SERVICES REFERENCE MANUAL SolarWinds N-central Version 12.0 SP1 Last Updated: Monday, October 15, 2018 Services Reference Manual: SolarWinds N-central page 2 Services Reference Manual: SolarWinds N-central About SolarWinds N-central services SolarWinds N-central services monitor customer devices, generate email alerts and PSA tickets, and enable technicians to view the status of devices and troubleshoot errors. Services are composed of metrics that monitor one aspect of a device. For example, the CPU service monitors the overall device CPU usage and the top five CPU-consuming processes. The Process service monitors not only if a specific process is running, but also the CPU, Memory and Disk I/O that the process is consuming. For a full list of services available, see the SolarWinds N-central Services List. SolarWinds N-central services use Reverse Polish Notation (RPN) for all calculation formulae. Service types SERVICE DESCRIPTION TYPE AMP Reports on results generated when running Automation Manager Policies using Global Output Parameters. Backup Monitors backup applications such as Backup Exec and Asigra for the device classes: n Laptop - Windows n Server - Generic/Windows n Workstation - Generic/Windows n Custom Backup Monitors integrated backup functionality based on D2D backup software. Manager EDF Customized services use a Java agent - External Data Feed - to monitor devices and applications through scripts. ESXi Monitors aspects of ESXi servers, including power consumption, logical drives, and related properties using the CIM services/ports. Local Services monitored by agents, including CPU, Disk, Memory and Process services. Log File Agents for Windows, OS X and Linux can scan log files. Agents can scan the entire log file time or only the lines in the log file that have been added since the log file was scanned. This category includes both the Log Append) and Log Batch service types. Maint Monitor internal SolarWinds N-central processes and should not be modified. ODBC Windows probes and agents can make ODBC queries to SQL databases. This service retrieves data from an SQL database and alerts you if the data does not match expectations. page 3 Services Reference Manual: SolarWinds N-central SERVICE DESCRIPTION TYPE QST Uses Intel Quiet System Technology to monitor computer operating temperatures. Security Unique services that wait for a device to report a problem. Log Commonly found on network infrastructure devices such as firewalls, switches, and routers, Syslog- (Syslog) based services, for example, FW-Cisco, can only be monitored by a Windows probe. Agents cannot monitor Syslog-based services. SNMP Gathers data by sending SNMP "GET" queries to the target device. As SNMP is a common protocol used on both Windows and non-Windows devices. Many services such as the APC UPS service use SNMP to get data. System Based on the License Compliance service, monitors the number of software licenses allowed for a customer based on thresholds specified for individual applications. TCP By querying the TCP port that an application is using, SolarWinds N-central can tell you if that application is responding and available for your customers to use. The HTTP service and the FTP services both use TCP queries. The HTTP service monitors the status of a website, and the FTP service monitors whether or not an FTP server is online. This category includes both the TCP and GenericTCP service types. VMware Monitor elements of a VMware virtualization environment. WMI Gathers data by sending WMI queries to the target device. All services that use WMI are available only on devices classed as Laptop - Windows, Server - Windows, or Workstation - Windows. Monitors MS applications, such as SQL, Exchange, IIS, and ISA. This category includes the WMIWorkstation and WMIServer service types. WSUS Interacts with a WSUS server to monitor patch compliance and generate reports. Why services change state When SolarWinds N-central receives data about a service, it compares that data against the thresholds defined for that service and changes the state of the service based on what threshold range the data falls into. For example, if the agent reported back a value of 3, SolarWinds N-central transitions the service into a Warning state: n Normal: 0-2 n Warning: 3 -5 n Failed: 6-10 There are cases where the service may not report a Normal, Warning, or Failed state: page 4 Services Reference Manual: SolarWinds N-central n If the data reported does not fall into the Normal, Warning, or Failed ranges, the service will transition to a Misconfigured state. n If the agent or probe wasn’t able to gather the requested data, the service will transition to a Misconfigured state. n If the data doesn’t match what it expects, for example, if it’s expecting text, but receives an integer), the service will transition to a No Data state. n If SolarWinds N-central stops receiving data for the service, the service will transition to a Stale state. n If the device enters a downtime period, the service will transition to a Disconnected state. n If a user disables the service, the service will transition to a No Data state. More about service states n Normal changes the service to Failed when the service stops running. n Reversed inverts the monitoring process. For example, a process that should not be running on a device can be monitored by the Process service using this method. After the process starts running, the state for the Process service changes to Failed. n Custom enables you to set up values for the Normal, Warning, and Failed states. For example, threshold settings for scan details, such as file size, average round trip time, and time to live (TTL) can be customized. n Off stops processing the scan detail for a state. If one scan detail is set to Off, the service is processed for a state based on the thresholds of the rest of the scan details. If all of the scan details are set to Off, the service is processed for its availability. page 5 Services Reference Manual: SolarWinds N-central Custom services If you need a service that is not readily available in SolarWinds N-central, you can create a custom service. A custom services leverage: n Automation Manager Policies, n SolarWinds N-central's proprietary external data feed ( EDF) engine, n TCP port queries, n Log file monitoring, n SNMP queries, n Syslog messages, and n WMI queries Custom services function similarly to the services included with SolarWinds N-central. Stock service items A stock service item is a predefined metric for an EDF, SNMP, or WMI custom service. This includes: CPU, Memory, Process, and UPS services. Use stock service items when the data you are collecting with the custom service needs to be included in SolarWinds N-central's Executive Summary report or in any Report Manager report. For example, CPU usage. What do you want to do? n Add a custom service n Import or export a custom service n Review custom service properties page 6 Services Reference Manual: SolarWinds N-central Add a Custom service 1. Click Administration > Service Management > Custom Services. 2. Click Add and select one of: n Service: Create a custom service with no service items. n Service using Stock Service Item: Create a custom service that already has services configured. A stock service item is a predefined metric for an EDF, SNMP, or WMI custom service. This includes: CPU, Memory, Process, and UPS services. 3. Select the type of custom service to be created. 4. Type a Name and description for the service 5. Configure the properties of the service as required and click Save. For more information, see Custom Service Properties. If you delete a custom service, SolarWinds N-central removes all associated instances of the service from any device, and deletes all collected historical data. page 7 Services Reference Manual: SolarWinds N-central Custom service properties The properties of custom services differ depending on the type of service you are creating. Common properties of all types of custom services include a service name and description. To create a custom service, click Administration > Service Management > Custom Services and click Add. Automation Manager Policy Monitoring Service The timeout interval is the period that SolarWinds N-central will wait for a response from a service before it causes the service to transition to a different state. The timeout interval for custom services based on Automation Manager Policies is calculated by subtracting two (2) minutes from the scan interval. This value can not be modified. DETAILS TAB Select Automation Policy Select the specific Automation Manager Policy output that the service will monitor. Service Identifier Enter a unique identification value to be assigned to the custom service. SCHEDULE TAB Interval Configure the frequency when the service transmits the command string to the TCP port. THRESHOLDS TAB String Evaluation Select the operator used to evaluate the state of the service based on the global output parameters of the associated Automation Manager Policy. String Value Enter the character string used for evaluating the state of the service based on the global output parameters of the associated Automation Manager Policy. If String does not contain Select the state that the custom service transitions to if it does not find the {String value} display state string value. as If String does contain Select the state that the custom service transitions to if it finds the string {String value} display state value. as Size of Monitored File Select the threshold ranges for transitioning the state of the custom service based on the size of the monitored file. page 8 Services Reference Manual: SolarWinds N-central External Data Feed Service An External Data Feed (EDF) service is the best option if you want to monitor a device that does not support WMI or SNMP, and you cannot install an agent on it.