SNMP Generic Server

Monitor your Servers and Hosts over SNMP

Extension

Product information
Release notes

Overview

This extensions collects generally supported SNMP infrastructure metrics to monitor the health and resource usage of servers. Metrics are collected through SNMP get polling.

Use cases

Monitoring of server infrastucture where a OneAgent isn't feasible to install.
Unix Servers: As an alternative to: Remote Unix
Windows Servers: As an alernative to WMI: Remote Windows

Get started

Simply activate the extension in your environment using the in-product Hub and provide the required device connection configurations. This extension uses the Dynatrace SNMP Data source

Compatibility Information

Any device which supports SNMP polling and one or more of the following MIBs:
- HOST-RESOURCES-MIB
- UCD-SNMP-MIB
- ENTITY-SENSOR-MIB
Unix: Net-SNMP software agent running. Redhat Docs Example
Windows: the SNMP service needs to be enabled and configured. Microsoft Docs

Details

This extension collects SNMP OID metrics from commonly supported MIBs. Most feature sets map to general entries or tables within the MIB files.

SNMPv2-MIB: System properties such as sysname and the sysuptime metric.
HOST-RESOURCES-MIB: Monitoring basic system resources such as CPU, memory, storage, and running processes on a host.
UCD-SNMP-MIB: Monitoring detailed system metrics such as load averages, disk I/O
ENTITY-SENSOR-MIB: Monitoring of physical sensors such as temperature, voltage, fan speed, etc.

FAQ

Q: What is the Custom Metric Usage of this extension?

The custom metric usage can be managed through which feature sets you choose to enable. sysuptime is the only enforced metric as part of the 'default' feature set. You can also use filter variables to restrict collection of specific paths and sensor types Dimension Filters All other feature sets are based on an Object Entry or Table within the SNMP Mib. e.g., hr-storage fs = HR hrStorageStable. Sometimes this is split into multiple for even more granular selection such as ucd-system-cpu-basic, ucd-system-cpu-detailed and ucd-system-swap which all come from: UCD systemStats.

To estimate the metrics ingested you can use a formula such as:

Scalar OIDs: 1 metric per OID
#metric_keys_in_fs

Table OIDs: 1 metric per each table entry (e.g., sensor, disk, process, file):
#metric_keys_in_fs * #entries_in_table

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Extension content

Content typeNumber of items included

screen message cards

10

screen logs cards

2

generic relationship

3

screen chart groups

48

document dashboard

1

dashboards

1

screen layout

1

screen entities lists

2

generic type

1

metric metadata

45

screen dql table

2

Feature sets

Below is a complete list of the feature sets provided in this version. To ensure a good fit for your needs, individual feature sets can be activated and deactivated by your administrator during configuration.

Feature setsNumber of metrics included

Metric name	Metric key	Description	Unit
Time since the last re-start	snmp.server.sys.uptime	The time (in hundredths of a second) since the network management portion of the system was last re-initialized. SysUpTime SNMPv2-MIB	Count

Metric name	Metric key	Description	Unit
Filesystem Properties	snmp.server.hr.filesystemproperties	Contant metric value to report host filesystem properties. hrFS HOST-RESOURCES-MIB.	Count

Metric name	Metric key	Description	Unit
Running Process Status	snmp.server.hr.swrunstatus	The status of this running piece of software, 1=running, 2=runnable, 3=notRunnable, 4=invalid. hrSWRunStatus HOST-RESOURCES-MIB.	Count

Metric name	Metric key	Description	Unit
Number of processes	snmp.server.hr.memorysize	The amount of physical read-write main memory typically RAM contained by the host. hrMemorySize HOST-RESOURCES-MIB.	KiloByte
Storage Size	snmp.server.hr.storagesize	The size of the storage, in units of hrStorageAllocationUnits. hrStorageSize HOST-RESOURCES-MIB.	Count
Storage Use	snmp.server.hr.storageused	The amount of the storage in use, in units of hrStorageAllocationUnits. hrStorageUsed HOST-RESOURCES-MIB.	Count

Metric name	Metric key	Description	Unit
Device Printer Status	snmp.server.hr.printerstatus	The current status and error state of the printer. Metric value is always 1, use the dimensions printer.status and printer.error_state. hrPrinterStatus HOST-RESOURCES-MIB.	Count

Metric name	Metric key	Description	Unit
Available disk space	snmp.server.ucd.dsktotal	Total size of the disk/partion (kBytes). dskTotal UCD-SNMP-MIB.	KibiByte
Available disk space	snmp.server.ucd.dskavail	Available space on the disk. dskAvail UCD-SNMP-MIB.	KibiByte
Used disk space	snmp.server.ucd.dskused	Used space on the disk. dskUsed UCD-SNMP-MIB.	KibiByte

Metric name	Metric key	Description	Unit
Device Operational Status	snmp.server.hr.devicestatus	The current operational state of the device. unknown(1), running(2), warning(3), testing(4), down(5). hrDeviceStatus HOST-RESOURCES-MIB.	Count

Metric name	Metric key	Description	Unit
Amount of free memory	snmp.server.ucd.memtotalfree	The total amount of memory free or available for use on this host. memTotalFree UCD-SNMP-MIB.	KibiByte
Amount of shared memory	snmp.server.ucd.memshared	The total amount of real or virtual memory currently allocated for use as shared memory. memShared UCD-SNMP-MIB.	KibiByte
Amount of buffered memory	snmp.server.ucd.membuffer	The total amount of real or virtual memory currently allocated for use as memory buffers. memBuffer UCD-SNMP-MIB.	KibiByte
Amount of cached memory	snmp.server.ucd.memcached	The total amount of real or virtual memory currently allocated for use as cached memory. memCached UCD-SNMP-MIB.	KibiByte

Metric name	Metric key	Description	Unit
Sensor Value	snmp.server.sensor.value	The most recent sensor measurement obtained. entPhySensorValue ENTITY-SENSOR-MIB.	Count

Metric name	Metric key	Description	Unit
Blocks Swapped In	snmp.server.ucd.ssrawswapin.count	Number of blocks swapped in. ssRawSwapIn UCD-SNMP-MIB.	Count
Blocks Swapped Out	snmp.server.ucd.ssrawswapout.count	Number of blocks swapped out. ssRawSwapOut UCD-SNMP-MIB.	Count

Metric name	Metric key	Description	Unit
CPU Ticks - User	snmp.server.ucd.sscpurawuser.count	The number of 'ticks' (typically 1/100s) spent processing user-level code. ssCpuRawUser UCD-SNMP-MIB.	Count
CPU Ticks - System	snmp.server.ucd.sscpurawsystem.count	The number of 'ticks' (typically 1/100s) spent processing system-level code. ssCpuRawSystem UCD-SNMP-MIB.	Count
CPU Ticks - Idle	snmp.server.ucd.sscpurawidle.count	The number of 'ticks' (typically 1/100s) spent idle. ssCpuRawIdle UCD-SNMP-MIB.	Count

Metric name	Metric key	Description	Unit
Disk space usage	snmp.server.ucd.dskpercent	Percentage of space used on disk. dskPercent UCD-SNMP-MIB.	Percent
Disk inodes usage	snmp.server.ucd.dskpercentnode	Percentage of inodes used on disk. dskPercentNode UCD-SNMP-MIB.	Percent

Metric name	Metric key	Description	Unit
Running Process CPU Ticks	snmp.server.hr.swrunperfcpu	The number of centi-seconds of the total system's CPU resources consumed by this process. hrSWRunPerfCPU HOST-RESOURCES-MIB.	Count
Running Process Memory Allocated	snmp.server.hr.hrswrunperfmem	The total amount of real system memory allocated to this process (KB). hrSWRunPerfMem HOST-RESOURCES-MIB.	KiloByte

Metric name	Metric key	Description	Unit
Time since the last re-start	snmp.server.hr.systemuptime	The time (in hundredths of a second) since the network management portion of the system was last re-initialized. hrSystemUptime HOST-RESOURCES-MIB.	Count
Number of processes	snmp.server.hr.systemnumusers	The number of user sessions for which this host is storing state information. hrSystemNumUsers HOST-RESOURCES-MIB.	Count
Number of processes	snmp.server.hr.systemprocesses	The number of process contexts currently loaded or running on the host. hrSystemProcesses HOST-RESOURCES-MIB.	Count

Metric name	Metric key	Description	Unit
Total swap size	snmp.server.ucd.memtotalswap	The total amount of swap space configured for this host. memTotalSwap UCD-SNMP-MIB.	KibiByte
Available swap space	snmp.server.ucd.memavailswap	The amount of swap space currently unused or available. memAvailSwap UCD-SNMP-MIB.	KibiByte

Metric name	Metric key	Description	Unit
Device Processor Load (CPU Usage)	snmp.server.hr.processorload	The average over the last minute of the percentage of time that this processor was not idle. hrProcessorLoad HOST-RESOURCES-MIB.	Percent

Metric name	Metric key	Description	Unit
Failed Requests for Storage	snmp.server.hr.storageallocationfailures.count	The number of requests for storage represented by this entry that could not be honored due to not enough storage. hrStorageAllocationFailures HOST-RESOURCES-MIB.	Count

Metric name	Metric key	Description	Unit
File Size	snmp.server.ucd.filesize	Size of file (kB). fileSize UCD-SNMP-MIB.	KiloByte

Metric name	Metric key	Description	Unit
Host memory	snmp.server.ucd.memtotalreal	The total amount of real/physical memory installed on this host. memTotalReal UCD-SNMP-MIB.	KibiByte
Amount of used memory	snmp.server.ucd.memavailreal	The amount of real/physical memory currently unused or available. memAvailReal UCD-SNMP-MIB.	KibiByte

Metric name	Metric key	Description	Unit
Device System Load (Runnable Processes)	snmp.server.ucd.laload	The device 1-minute load average. Number of runnable processes in the queue. laLoadInt UCD-SNMP-MIB.	Percent

Metric name	Metric key	Description	Unit
Device Disk Storage Device Capacity	snmp.server.hr.diskstoragecapacity	The total size for this long-term storage device. If the media is removable and is currently removed this value should be zero. hrDiskStorageCapacity HOST-RESOURCES-MIB.	KiloByte

Metric name	Metric key	Description	Unit
Device Operational Status	snmp.server.hr.deviceerrors.count	The number of errors detected on this device. hrDeviceErrors HOST-RESOURCES-MIB.	Count

Metric name	Metric key	Description	Unit
CPU Ticks - Nice	snmp.server.ucd.sscpurawnice.count	The number of 'ticks' (typically 1/100s) spent processing reduced-priority code. ssCpuRawNice UCD-SNMP-MIB.	Count
CPU Ticks - Wait	snmp.server.ucd.sscpurawwait.count	The number of 'ticks' (typically 1/100s) spent waiting for IO. ssCpuRawWait UCD-SNMP-MIB.	Count
CPU Ticks - Kernel	snmp.server.ucd.sscpurawkernel.count	The number of 'ticks' (typically 1/100s) spent processing kernel-level code. ssCpuRawKernel UCD-SNMP-MIB.	Count
CPU Ticks - Hardware Interrups	snmp.server.ucd.sscpurawinterrupt.count	The number of 'ticks' (typically 1/100s) spent processing hardware interrupts. ssCpuRawInterrupt UCD-SNMP-MIB.	Count
CPU Ticks - Steal	snmp.server.ucd.sscpurawsteal.count	The number of 'ticks' (typically 1/100s) spent by the hypervisor code to run other VMs even though the CPU in the current VM had something runnable. ssCpuRawSteal UCD-SNMP-MIB.	Count
CPU Ticks - Guest	snmp.server.ucd.sscpurawguest.count	The number of 'ticks' (typically 1/100s) spent by the CPU to run a virtual CPU (guest). ssCpuRawGuest UCD-SNMP-MIB.	Count
CPU Ticks - Guest Nice	snmp.server.ucd.sscpurawguestnice.count	The number of 'ticks' (typically 1/100s) spent by the CPU to run a niced virtual CPU (guest). ssCpuRawGuestNice UCD-SNMP-MIB.	Count

Full version history

To have more information on how to install the downloaded package, please follow the instructions on this page.

ReleaseDate

Full version history

Device polling and metric collection
- SNMPv2-MIB, HOST-RESOURCES-MIB, UCD-SNMP-MIB, ENTITY-SENSOR-MIB

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