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Version: v1.7.x

Monitoring:Synology NAS

Collect and monitor the general performance Metrics of Synology NAS device.

Protocol Use: SNMP

Pre-monitoring operations

Please refer to SNMP to enable SNMP service. Currently, SNMPv1, SNMPv2c and SNMPv3 protocols are supported.

Configuration parameter

Parameter nameParameter help description
Target HostMonitored IPV4, IPV6 or domain name. Note⚠️Without protocol header (eg: https://, http://)
Task NameIdentify the name of this monitoring. The name needs to be unique
PortPort of SNMP. The default is 161
SNMP VersionSNMP version to use
SNMP CommunityUsed in SNMP v1 and SNMP v2c, used to complete authentication in SNMP Agent, in string form. Group name includes "read" and "write", when performing SNMP query operation, "read" group name is used for authentication; when performing SNMP setting operation, "write" group name is used for authentication. When performing SNMP query operation, "read" group name is used for authentication; when performing SNMP setting operation, "write" group name is used for authentication.
SNMP usernameFor SNMP v3, MSG username
SNMP contextNameFor SNMP v3, used to determine the MIB view of the Context EngineID to the managed device
SNMP authPasswordFor SNMP v3, SNMP authentication passwords
authPassword EncryptionFor SNMP v3, SNMP authentication algorithm
SNMP privPassphraseFor SNMP v3, SNMP encrypted passwords
privPassword EncryptionFor SNMP v3, SNMP encrypted algorithm
TimeoutSet the timeout time when querying unresponsive data, in milliseconds, the default is 6000 milliseconds
IntervalsInterval time of monitor periodic data collection, unit: second, and the minimum interval that can be set is 30 seconds
DescriptionFor more information about identifying and describing this monitoring, users can note information here

Collection Metric

Since there are too many metrics that can be queried, detailed metrics can be queried on SNMP MIB Guide.

This document only introduces the monitoring indicators queried in the monitor template.

Metric Set: system

Metric NameMetric UnitMetric Help Description
modelNameNoneModel name of this NAS
serialNumberNoneModel serial number
versionNoneThe version of DSM
controllerNumberNoneThe controller number

Metric Set: status

Metric NameMetric UnitMetric Help Description
powerStatusNonePower status,returns error if power supplies fail
systemFanStatusNoneSystem fan status, returns error if system fan fails
cpuFanStatusNoneCPU fan status, returns error if CPU fan fails
systemStatusNoneSystem partition status
thermalStatusNonereturns error if thermal status is abnormal
temperatureNoneTemperature of this NAS
cpuUtilizationPercentage(%)Utilization (%) is the sum of user and system CPU usage
memUtilizationPercentage(%)Utilization (%) is the sum of memory usage

Metric Set: disk

Metric NameMetric UnitMetric Help Description
diskIDNoneDisk name in DSM
diskModelNoneDisk model
diskTypeNoneDisk type, e.g. SATA, SSD
diskStatusNoneCurrent disk status
diskTemperatureNoneDisk temperature
diskRoleNoneThe role of the disk in system
diskRetryNoneThe count of each disk connection retries
diskBadSectorNoneThe count of each disk I/O bad sector
diskIdentifyFailNoneThe count of each disk identify fails
diskRemainLifeNoneThe estimate remain life of each disk
diskNameNoneDisk name which will keep the same value in different DSM version
diskHealthStatusNoneCurrent disk health status

Metric Set: RAID

Metric NameMetric UnitMetric Help Description
raidNameNoneThe name of each RAID in DSM
raidStatusNoneIt shows the RAID status right now
raidFreeSizeNoneThe free size of volume / disk group
raidTotalSizeNoneThe total size of volume / disk group
raidHotspareCntNoneTotal hotspare disks count which can protect RAID (smaller than 0 means something wrong)

Metric Set: S.M.A.R.T

Metric NameMetric UnitMetric Help Description
diskSMARTInfoDevNameNoneDescribes the disk to which this SMART info belongs to
diskSMARTAttrNameNoneThe name of the SMART info attribute
diskSMARTAttrIdNoneSMART attribute ID number
diskSMARTAttrCurrentNoneSMART attribute current value
diskSMARTAttrWorstNoneSMART attribute worst value
diskSMARTAttrThresholdNoneSMART attribute threshold value
diskSMARTAttrRawNoneSMART attribute raw value
diskSMARTAttrStatusNoneStatus of this SMART info

Metric Set: space io

Metric NameMetric UnitMetric Help Description
spaceIODeviceNoneThe name of the device this volume mounted on
spaceIOReadsNoneThe number of read accesses from this volume since boot
spaceIOWritesNoneThe number of write accesses to this volume since boot
spaceIOLAPercentage(%)The load of disk in the volume
spaceIOLA1Percentage(%)The 1 minute average load of disk in the volume
spaceIOLA5Percentage(%)The 5 minute average load of disk in the volume
spaceIOLA15Percentage(%)The 15 minute average load of disk in the volume
spaceUUIDNoneThe UUID of this volume

Metric Set: storage io

Metric NameMetric UnitMetric Help Description
storageIODeviceNoneThe name of the device we are counting/checking
storageIOReadsNoneThe number of read accesses from this device since boot
storageIOWritesNoneThe number of write accesses to this device since boot
storageIOLAPercentage(%)The load of disk
storageIOLA1Percentage(%)The 1-minute average load of disk
storageIOLA5Percentage(%)The 5-minute average load of disk
storageIOLA15Percentage(%)The 15-minute average load of disk
storageIODeviceSerialNoneThe serial number of this device