Threshold of CPU utilization for warning trigger in %.
|`90`| |{$ICMP_LOSS_WARN}|Threshold of ICMP packets loss for warning trigger in %.
|`20`| |{$ICMP_RESPONSE_TIME_WARN}|Threshold of average ICMP response time for warning trigger in seconds.
|`0.15`| |{$IF.ERRORS.WARN}|Threshold of error packets rate for warning trigger. Can be used with interface name as context.
|`2`| |{$IF.UTIL.MAX}|Threshold of interface bandwidth utilization for warning trigger in %. Can be used with interface name as context.
|`90`| |{$IFCONTROL}|Macro for operational state of the interface for link down trigger. Can be used with interface name as context.
|`1`| |{$LOAD_AVG_PER_CPU.MAX.WARN}|Load per CPU considered sustainable. Tune if needed.
|`1.5`| |{$MEMORY.AVAILABLE.MIN}|Threshold of available memory for trigger in bytes.
|`20M`| |{$MEMORY.UTIL.MAX}|Threshold of memory utilization for trigger in %
|`90`| |{$NET.IF.IFADMINSTATUS.MATCHES}|This macro is used in filters of network interfaces discovery rule.
|`^.*`| |{$NET.IF.IFADMINSTATUS.NOT_MATCHES}|Ignore down(2) administrative status
|`^2$`| |{$NET.IF.IFALIAS.MATCHES}|This macro is used in filters of network interfaces discovery rule.
|`.*`| |{$NET.IF.IFALIAS.NOT_MATCHES}|This macro is used in filters of network interfaces discovery rule.
|`CHANGE_IF_NEEDED`| |{$NET.IF.IFDESCR.MATCHES}|This macro used in filters of network interfaces discovery rule.
|`.*`| |{$NET.IF.IFDESCR.NOT_MATCHES}|This macro used in filters of network interfaces discovery rule.
|`CHANGE_IF_NEEDED`| |{$NET.IF.IFNAME.NOT_MATCHES}|This macro used in filters of network interfaces discovery rule.
|`CHANGE_IF_NEEDED`| |{$NET.IF.IFOPERSTATUS.MATCHES}|This macro used in filters of network interfaces discovery rule.
|`^.*$`| |{$NET.IF.IFOPERSTATUS.NOT_MATCHES}|Ignore notPresent(6)
|`^6$`| |{$NET.IF.IFTYPE.MATCHES}|This macro used in filters of network interfaces discovery rule.
|`.*`| |{$NET.IF.IFTYPE.NOT_MATCHES}|This macro used in filters of network interfaces discovery rule.
|`CHANGE_IF_NEEDED`| |{$SNMP.TIMEOUT}|The time interval for SNMP availability trigger.
|`5m`| |{$SWAP.PFREE.MIN.WARN}|Threshold of free swap space for warning trigger in %.
|`50`| |{$VFS.DEV.DEVNAME.MATCHES}|This macro is used in block devices discovery. Can be overridden on the host or linked template level
|`.+`| |{$VFS.DEV.DEVNAME.NOT_MATCHES}|This macro is used in block devices discovery. Can be overridden on the host or linked template level
|`Macro too long. Please see the template.`| |{$DATASET.NAME.MATCHES}|This macro is used in datasets discovery. Can be overridden on the host or linked template level
|`.+`| |{$DATASET.NAME.NOT_MATCHES}|This macro is used in datasets discovery. Can be overridden on the host or linked template level
|`^(boot\|.+\.system(.+)?$)`| |{$ZPOOL.PUSED.MAX.WARN}|Threshold of used pool space for warning trigger in %.
|`80`| |{$ZPOOL.FREE.MIN.WARN}|This macro is used for trigger expression. It can be overridden on the host or linked on the template level.
|`5G`| |{$ZPOOL.PUSED.MAX.CRIT}|Threshold of used pool space for average severity trigger in %.
|`90`| |{$ZPOOL.FREE.MIN.CRIT}|This macro is used for trigger expression. It can be overridden on the host or linked on the template level.
|`5G`| |{$DATASET.PUSED.MAX.WARN}|Threshold of used dataset space for warning trigger in %.
|`80`| |{$DATASET.FREE.MIN.WARN}|This macro is used for trigger expression. It can be overridden on the host or linked on the template level.
|`5G`| |{$DATASET.PUSED.MAX.CRIT}|Threshold of used dataset space for average severity trigger in %.
|`90`| |{$DATASET.FREE.MIN.CRIT}|This macro is used for trigger expression. It can be overridden on the host or linked on the template level.
|`5G`| |{$TEMPERATURE.MAX.WARN}|This macro is used for trigger expression. It can be overridden on the host or linked on the template level.
|`50`| |{$TEMPERATURE.MAX.CRIT}|This macro is used for trigger expression. It can be overridden on the host or linked on the template level.
|`65`| ### Items |Name|Description|Type|Key and additional info| |----|-----------|----|-----------------------| |TrueNAS: ICMP ping|Host accessibility by ICMP.
0 - ICMP ping fails.
1 - ICMP ping successful.
|Simple check|icmpping| |TrueNAS: ICMP loss|Percentage of lost packets.
|Simple check|icmppingloss| |TrueNAS: ICMP response time|ICMP ping response time (in seconds).
|Simple check|icmppingsec| |TrueNAS: System contact details|MIB: SNMPv2-MIB
The textual identification of the contact person for this managed node, together with information on how to contact this person. If no contact information is known, the value is the zero-length string.
|SNMP agent|system.contact**Preprocessing**
Discard unchanged with heartbeat: `6h`
MIB: SNMPv2-MIB
System description of the host.
|SNMP agent|system.descr**Preprocessing**
Discard unchanged with heartbeat: `6h`
MIB: SNMPv2-MIB
The physical location of this node. If the location is unknown, the value is the zero-length string.
|SNMP agent|system.location**Preprocessing**
Discard unchanged with heartbeat: `6h`
MIB: SNMPv2-MIB
The host name of the system.
|SNMP agent|system.name**Preprocessing**
Discard unchanged with heartbeat: `6h`
MIB: SNMPv2-MIB
The vendor authoritative identification of the network management subsystem contained in the entity. This value is allocated within the SMI enterprises subtree (1.3.6.1.4.1) and provides an easy and unambiguous means for determining what kind of box is being managed.
|SNMP agent|system.objectid**Preprocessing**
Discard unchanged with heartbeat: `6h`
MIB: SNMPv2-MIB
The system uptime expressed in the following format: "N days, hh:mm:ss".
|SNMP agent|system.uptime**Preprocessing**
Custom multiplier: `0.01`
Availability of SNMP checks on the host. The value of this item corresponds to availability icons in the host list.
Possible value:
0 - not available
1 - available
2 - unknown
|Zabbix internal|zabbix[host,snmp,available]| |TrueNAS: Interrupts per second|MIB: UCD-SNMP-MIB
Number of interrupts processed.
|SNMP agent|system.cpu.intr**Preprocessing**
MIB: UCD-SNMP-MIB
Number of context switches.
|SNMP agent|system.cpu.switches**Preprocessing**
MIB: UCD-SNMP-MIB
The 1 minute load averages.
|SNMP agent|system.cpu.load.avg1| |TrueNAS: Load average (5m avg)|MIB: UCD-SNMP-MIB
The 5 minutes load averages.
|SNMP agent|system.cpu.load.avg5| |TrueNAS: Load average (15m avg)|MIB: UCD-SNMP-MIB
The 15 minutes load averages.
|SNMP agent|system.cpu.load.avg15| |TrueNAS: Number of CPUs|MIB: HOST-RESOURCES-MIB
Count the number of CPU cores by counting number of cores discovered in hrProcessorTable using LLD.
|SNMP agent|system.cpu.num**Preprocessing**
JavaScript: `The text is too long. Please see the template.`
MIB: UCD-SNMP-MIB
The amount of real/physical memory currently unused or available.
|SNMP agent|vm.memory.free**Preprocessing**
Custom multiplier: `1024`
MIB: UCD-SNMP-MIB
The total amount of real or virtual memory currently allocated for use as memory buffers.
|SNMP agent|vm.memory.buffers**Preprocessing**
Custom multiplier: `1024`
MIB: UCD-SNMP-MIB
The total amount of real or virtual memory currently allocated for use as cached memory.
|SNMP agent|vm.memory.cached**Preprocessing**
Custom multiplier: `1024`
MIB: UCD-SNMP-MIB
The total memory expressed in bytes.
|SNMP agent|vm.memory.total**Preprocessing**
Custom multiplier: `1024`
Please note that memory utilization is a rough estimate, since memory available is calculated as free+buffers+cached, which is not 100% accurate, but the best we can get using SNMP.
|Calculated|vm.memory.available| |TrueNAS: Memory utilization|Please note that memory utilization is a rough estimate, since memory available is calculated as free+buffers+cached, which is not 100% accurate, but the best we can get using SNMP.
|Calculated|vm.memory.util| |TrueNAS: Total swap space|MIB: UCD-SNMP-MIB
The total amount of swap space configured for this host.
|SNMP agent|system.swap.total**Preprocessing**
Custom multiplier: `1024`
MIB: UCD-SNMP-MIB
The amount of swap space currently unused or available.
|SNMP agent|system.swap.free**Preprocessing**
Custom multiplier: `1024`
The free space of the swap volume/file expressed in %.
|Calculated|system.swap.pfree| |TrueNAS: ARC size|MIB: FREENAS-MIB
ARC size in bytes.
|SNMP agent|truenas.zfs.arc.size**Preprocessing**
Custom multiplier: `1024`
Discard unchanged with heartbeat: `1h`
MIB: FREENAS-MIB
ARC metadata size used in bytes.
|SNMP agent|truenas.zfs.arc.meta**Preprocessing**
Custom multiplier: `1024`
MIB: FREENAS-MIB
ARC data size used in bytes.
|SNMP agent|truenas.zfs.arc.data**Preprocessing**
Custom multiplier: `1024`
MIB: FREENAS-MIB
Total amount of cache hits in the ARC per second.
|SNMP agent|truenas.zfs.arc.hits**Preprocessing**
MIB: FREENAS-MIB
Total amount of cache misses in the ARC per second.
|SNMP agent|truenas.zfs.arc.misses**Preprocessing**
MIB: FREENAS-MIB
ARC target size of cache in bytes.
|SNMP agent|truenas.zfs.arc.c**Preprocessing**
Custom multiplier: `1024`
Discard unchanged with heartbeat: `1h`
MIB: FREENAS-MIB
ARC target size of MRU in bytes.
|SNMP agent|truenas.zfs.arc.p**Preprocessing**
Custom multiplier: `1024`
Discard unchanged with heartbeat: `1h`
MIB: FREENAS-MIB
ARC cache hit ration percentage.
|SNMP agent|truenas.zfs.arc.hit.ratio| |TrueNAS: ARC cache miss ratio|MIB: FREENAS-MIB
ARC cache miss ration percentage.
|SNMP agent|truenas.zfs.arc.miss.ratio| |TrueNAS: L2ARC hits|MIB: FREENAS-MIB
Hits to the L2 cache per second.
|SNMP agent|truenas.zfs.l2arc.hits**Preprocessing**
MIB: FREENAS-MIB
Misses to the L2 cache per second.
|SNMP agent|truenas.zfs.l2arc.misses**Preprocessing**
MIB: FREENAS-MIB
Read rate from L2 cache in bytes per second.
|SNMP agent|truenas.zfs.l2arc.read**Preprocessing**
MIB: FREENAS-MIB
Write rate from L2 cache in bytes per second.
|SNMP agent|truenas.zfs.l2arc.write**Preprocessing**
MIB: FREENAS-MIB
L2ARC size in bytes.
|SNMP agent|truenas.zfs.l2arc.size**Preprocessing**
Custom multiplier: `1024`
Discard unchanged with heartbeat: `1h`
MIB: FREENAS-MIB
The ops column parsed from the command zilstat 1 1.
|SNMP agent|truenas.zfs.zil.ops1| |TrueNAS: ZIL operations 5 seconds|MIB: FREENAS-MIB
The ops column parsed from the command zilstat 5 1.
|SNMP agent|truenas.zfs.zil.ops5| |TrueNAS: ZIL operations 10 seconds|MIB: FREENAS-MIB
The ops column parsed from the command zilstat 10 1.
|SNMP agent|truenas.zfs.zil.ops10| ### Triggers |Name|Description|Expression|Severity|Dependencies and additional info| |----|-----------|----------|--------|--------------------------------| |TrueNAS: Unavailable by ICMP ping|Last three attempts returned timeout. Please check device connectivity.
|`max(/TrueNAS by SNMP/icmpping,#3)=0`|High|| |TrueNAS: High ICMP ping loss|ICMP packets loss detected.
|`min(/TrueNAS by SNMP/icmppingloss,5m)>{$ICMP_LOSS_WARN} and min(/TrueNAS by SNMP/icmppingloss,5m)<100`|Warning|**Depends on**:Average ICMP response time is too big.
|`avg(/TrueNAS by SNMP/icmppingsec,5m)>{$ICMP_RESPONSE_TIME_WARN}`|Warning|**Depends on**:The name of the system has changed. Acknowledge to close the problem manually.
|`last(/TrueNAS by SNMP/system.name,#1)<>last(/TrueNAS by SNMP/system.name,#2) and length(last(/TrueNAS by SNMP/system.name))>0`|Info|**Manual close**: Yes| |TrueNAS: Host has been restarted|Uptime is less than 10 minutes.
|`last(/TrueNAS by SNMP/system.uptime)<10m`|Info|**Manual close**: Yes| |TrueNAS: No SNMP data collection|SNMP is not available for polling. Please check device connectivity and SNMP settings.
|`max(/TrueNAS by SNMP/zabbix[host,snmp,available],{$SNMP.TIMEOUT})=0`|Warning|**Depends on**:The load average per CPU is too high. The system may be slow to respond.
|`min(/TrueNAS by SNMP/system.cpu.load.avg1,5m)/last(/TrueNAS by SNMP/system.cpu.num)>{$LOAD_AVG_PER_CPU.MAX.WARN} and last(/TrueNAS by SNMP/system.cpu.load.avg5)>0 and last(/TrueNAS by SNMP/system.cpu.load.avg15)>0`|Average|| |TrueNAS: Lack of available memory|The system is running out of memory.
|`min(/TrueNAS by SNMP/vm.memory.available,5m)<{$MEMORY.AVAILABLE.MIN} and last(/TrueNAS by SNMP/vm.memory.total)>0`|Average|| |TrueNAS: High memory utilization|The system is running out of free memory.
|`min(/TrueNAS by SNMP/vm.memory.util,5m)>{$MEMORY.UTIL.MAX}`|Average|**Depends on**:If there is no swap configured, this trigger is ignored.
|`min(/TrueNAS by SNMP/system.swap.pfree,5m)<{$SWAP.PFREE.MIN.WARN} and last(/TrueNAS by SNMP/system.swap.total)>0`|Warning|**Depends on**:This discovery will create set of per core CPU metrics from UCD-SNMP-MIB, using {#CPU.COUNT} in preprocessing. That's the only reason why LLD is used.
|Dependent item|cpu.discovery**Preprocessing**
JavaScript: `The text is too long. Please see the template.`
MIB: UCD-SNMP-MIB
The time the CPU has spent doing nothing.
|SNMP agent|system.cpu.idle[{#SNMPINDEX}]| |TrueNAS: CPU system time|MIB: UCD-SNMP-MIB
The time the CPU has spent running the kernel and its processes.
|SNMP agent|system.cpu.system[{#SNMPINDEX}]**Preprocessing**
JavaScript: `The text is too long. Please see the template.`
MIB: UCD-SNMP-MIB
The time the CPU has spent running users' processes that are not niced.
|SNMP agent|system.cpu.user[{#SNMPINDEX}]**Preprocessing**
JavaScript: `The text is too long. Please see the template.`
MIB: UCD-SNMP-MIB
The time the CPU has spent running users' processes that have been niced.
|SNMP agent|system.cpu.nice[{#SNMPINDEX}]**Preprocessing**
JavaScript: `The text is too long. Please see the template.`
MIB: UCD-SNMP-MIB
The amount of time the CPU has been waiting for I/O to complete.
|SNMP agent|system.cpu.iowait[{#SNMPINDEX}]**Preprocessing**
JavaScript: `The text is too long. Please see the template.`
MIB: UCD-SNMP-MIB
The amount of time the CPU has been servicing hardware interrupts.
|SNMP agent|system.cpu.interrupt[{#SNMPINDEX}]**Preprocessing**
JavaScript: `The text is too long. Please see the template.`
The CPU utilization expressed in %.
|Dependent item|system.cpu.util[{#SNMPINDEX}]**Preprocessing**
JavaScript: `//Calculate utilization
return (100 - value)`
The CPU utilization is too high. The system might be slow to respond.
|`min(/TrueNAS by SNMP/system.cpu.util[{#SNMPINDEX}],5m)>{$CPU.UTIL.CRIT}`|Warning|**Depends on**:Block devices are discovered from UCD-DISKIO-MIB::diskIOTable (http://net-snmp.sourceforge.net/docs/mibs/ucdDiskIOMIB.html#diskIOTable).
|SNMP agent|vfs.dev.discovery| ### Item prototypes for Block devices discovery |Name|Description|Type|Key and additional info| |----|-----------|----|-----------------------| |TrueNAS: [{#DEVNAME}]: Disk read rate|MIB: UCD-DISKIO-MIB
The number of read accesses from this device since boot.
|SNMP agent|vfs.dev.read.rate[{#SNMPINDEX}]**Preprocessing**
MIB: UCD-DISKIO-MIB
The number of write accesses from this device since boot.
|SNMP agent|vfs.dev.write.rate[{#SNMPINDEX}]**Preprocessing**
MIB: UCD-DISKIO-MIB
The 1 minute average load of disk (%).
|SNMP agent|vfs.dev.util[{#SNMPINDEX}]| ### LLD rule Network interfaces discovery |Name|Description|Type|Key and additional info| |----|-----------|----|-----------------------| |Network interfaces discovery|Discovering interfaces from IF-MIB.
|SNMP agent|net.if.discovery| ### Item prototypes for Network interfaces discovery |Name|Description|Type|Key and additional info| |----|-----------|----|-----------------------| |TrueNAS: Interface [{#IFNAME}({#IFALIAS})]: Inbound packets discarded|MIB: IF-MIB
The number of inbound packets which were chosen to be discarded
even though no errors had been detected to prevent their being deliverable to a higher-layer protocol.
One possible reason for discarding such a packet could be to free up buffer space.
Discontinuities in the value of this counter can occur at re-initialization of the management system,
and at other times as indicated by the value of ifCounterDiscontinuityTime.
|SNMP agent|net.if.in.discards[{#SNMPINDEX}]**Preprocessing**
MIB: IF-MIB
For packet-oriented interfaces, the number of inbound packets that contained errors preventing them from being deliverable to a higher-layer protocol. For character-oriented or fixed-length interfaces, the number of inbound transmission units that contained errors preventing them from being deliverable to a higher-layer protocol. Discontinuities in the value of this counter can occur at re-initialization of the management system, and at other times as indicated by the value of ifCounterDiscontinuityTime.
|SNMP agent|net.if.in.errors[{#SNMPINDEX}]**Preprocessing**
MIB: IF-MIB
The total number of octets received on the interface, including framing characters. This object is a 64-bit version of ifInOctets. Discontinuities in the value of this counter can occur at re-initialization of the management system, and at other times as indicated by the value of ifCounterDiscontinuityTime.
|SNMP agent|net.if.in[{#SNMPINDEX}]**Preprocessing**
Custom multiplier: `8`
MIB: IF-MIB
The number of outbound packets which were chosen to be discarded
even though no errors had been detected to prevent their being deliverable to a higher-layer protocol.
One possible reason for discarding such a packet could be to free up buffer space.
Discontinuities in the value of this counter can occur at re-initialization of the management system,
and at other times as indicated by the value of ifCounterDiscontinuityTime.
|SNMP agent|net.if.out.discards[{#SNMPINDEX}]**Preprocessing**
MIB: IF-MIB
For packet-oriented interfaces, the number of outbound packets that contained errors preventing them from being deliverable to a higher-layer protocol. For character-oriented or fixed-length interfaces, the number of outbound transmission units that contained errors preventing them from being deliverable to a higher-layer protocol. Discontinuities in the value of this counter can occur at re-initialization of the management system, and at other times as indicated by the value of ifCounterDiscontinuityTime.
|SNMP agent|net.if.out.errors[{#SNMPINDEX}]**Preprocessing**
MIB: IF-MIB
The total number of octets transmitted out of the interface, including framing characters. This object is a 64-bit version of ifOutOctets.Discontinuities in the value of this counter can occur at re-initialization of the management system, and at other times as indicated by the value of ifCounterDiscontinuityTime.
|SNMP agent|net.if.out[{#SNMPINDEX}]**Preprocessing**
Custom multiplier: `8`
MIB: IF-MIB
An estimate of the interface's current bandwidth in units of 1,000,000 bits per second. If this object reports a value of `n' then the speed of the interface is somewhere in the range of `n-500,000' to`n+499,999'. For interfaces which do not vary in bandwidth or for those where no accurate estimation can be made, this object should contain the nominal bandwidth. For a sub-layer which has no concept of bandwidth, this object should be zero.
|SNMP agent|net.if.speed[{#SNMPINDEX}]**Preprocessing**
Custom multiplier: `1000000`
Discard unchanged with heartbeat: `1h`
MIB: IF-MIB
The current operational state of the interface.
- The testing(3) state indicates that no operational packet scan be passed
- If ifAdminStatus is down(2) then ifOperStatus should be down(2)
- If ifAdminStatus is changed to up(1) then ifOperStatus should change to up(1) if the interface is ready to transmit and receive network traffic
- It should change todormant(5) if the interface is waiting for external actions (such as a serial line waiting for an incoming connection)
- It should remain in the down(2) state if and only if there is a fault that prevents it from going to the up(1) state
- It should remain in the notPresent(6) state if the interface has missing(typically, hardware) components.
|SNMP agent|net.if.status[{#SNMPINDEX}]**Preprocessing**
Discard unchanged with heartbeat: `6h`
MIB: IF-MIB
The type of interface.
Additional values for ifType are assigned by the Internet Assigned Numbers Authority (IANA),
through updating the syntax of the IANAifType textual convention.
|SNMP agent|net.if.type[{#SNMPINDEX}]**Preprocessing**
Discard unchanged with heartbeat: `6h`
It recovers when it is below 80% of the `{$IF.ERRORS.WARN:"{#IFNAME}"}` threshold.
|`min(/TrueNAS by SNMP/net.if.in.errors[{#SNMPINDEX}],5m)>{$IF.ERRORS.WARN:"{#IFNAME}"}`|Warning|**Depends on**:The utilization of the network interface is close to its estimated maximum bandwidth.
|`(avg(/TrueNAS by SNMP/net.if.in[{#SNMPINDEX}],15m)>({$IF.UTIL.MAX:"{#IFNAME}"}/100)*last(/TrueNAS by SNMP/net.if.speed[{#SNMPINDEX}])) and last(/TrueNAS by SNMP/net.if.speed[{#SNMPINDEX}])>0`|Warning|**Depends on**:It recovers when it is below 80% of the `{$IF.ERRORS.WARN:"{#IFNAME}"}` threshold.
|`min(/TrueNAS by SNMP/net.if.out.errors[{#SNMPINDEX}],5m)>{$IF.ERRORS.WARN:"{#IFNAME}"}`|Warning|**Depends on**:The utilization of the network interface is close to its estimated maximum bandwidth.
|`(avg(/TrueNAS by SNMP/net.if.out[{#SNMPINDEX}],15m)>({$IF.UTIL.MAX:"{#IFNAME}"}/100)*last(/TrueNAS by SNMP/net.if.speed[{#SNMPINDEX}])) and last(/TrueNAS by SNMP/net.if.speed[{#SNMPINDEX}])>0`|Warning|**Depends on**:This Ethernet connection has transitioned down from its known maximum speed. This might be a sign of autonegotiation issues. Acknowledge to close the problem manually.
|`change(/TrueNAS by SNMP/net.if.speed[{#SNMPINDEX}])<0 and last(/TrueNAS by SNMP/net.if.speed[{#SNMPINDEX}])>0 and ( last(/TrueNAS by SNMP/net.if.type[{#SNMPINDEX}])=6 or last(/TrueNAS by SNMP/net.if.type[{#SNMPINDEX}])=7 or last(/TrueNAS by SNMP/net.if.type[{#SNMPINDEX}])=11 or last(/TrueNAS by SNMP/net.if.type[{#SNMPINDEX}])=62 or last(/TrueNAS by SNMP/net.if.type[{#SNMPINDEX}])=69 or last(/TrueNAS by SNMP/net.if.type[{#SNMPINDEX}])=117 ) and (last(/TrueNAS by SNMP/net.if.status[{#SNMPINDEX}])<>2)`|Info|**Depends on**:This trigger expression works as follows:
1. It can be triggered if the operations status is down.
2. `{$IFCONTROL:"{#IFNAME}"}=1` - a user can redefine context macro to value - 0. That marks this interface as not important. No new trigger will be fired if this interface is down.
ZFS pools discovery from FREENAS-MIB.
|SNMP agent|truenas.zfs.pools.discovery**Preprocessing**
Discard unchanged with heartbeat: `6h`
MIB: FREENAS-MIB
The size of the storage pool in bytes.
|SNMP agent|truenas.zpool.size.total[{#POOLNAME}]**Preprocessing**
Custom multiplier: `{#POOL_ALLOC_UNITS}`
Discard unchanged with heartbeat: `1h`
MIB: FREENAS-MIB
The used size of the storage pool in bytes.
|SNMP agent|truenas.zpool.used[{#POOLNAME}]**Preprocessing**
Custom multiplier: `{#POOL_ALLOC_UNITS}`
MIB: FREENAS-MIB
The available size of the storage pool in bytes.
|SNMP agent|truenas.zpool.avail[{#POOLNAME}]**Preprocessing**
Custom multiplier: `{#POOL_ALLOC_UNITS}`
The used size of the storage pool in %.
|Calculated|truenas.zpool.pused[{#POOLNAME}]| |TrueNAS: Pool [{#POOLNAME}]: Health|MIB: FREENAS-MIB
The current health of the containing pool, as reported by zpool status.
|SNMP agent|truenas.zpool.health[{#POOLNAME}]**Preprocessing**
Discard unchanged with heartbeat: `1h`
MIB: FREENAS-MIB
The number of read I/O operations sent to the pool or device, including metadata requests (averaged since system booted).
|SNMP agent|truenas.zpool.read.ops[{#POOLNAME}]**Preprocessing**
MIB: FREENAS-MIB
The number of write I/O operations sent to the pool or device (averaged since system booted).
|SNMP agent|truenas.zpool.write.ops[{#POOLNAME}]**Preprocessing**
MIB: FREENAS-MIB
The bandwidth of all read operations (including metadata), expressed as units per second (averaged since system booted).
|SNMP agent|truenas.zpool.read.bytes[{#POOLNAME}]**Preprocessing**
Custom multiplier: `{#POOL_ALLOC_UNITS}`
MIB: FREENAS-MIB
The bandwidth of all write operations, expressed as units per second (averaged since system booted).
|SNMP agent|truenas.zpool.write.bytes[{#POOLNAME}]**Preprocessing**
Custom multiplier: `{#POOL_ALLOC_UNITS}`
Two conditions should match:
1. The first condition - utilization of the space should be above `{$ZPOOL.PUSED.MAX.CRIT:"{#POOLNAME}"}%.`
2. The second condition - the pool free space is less than `{$ZPOOL.FREE.MIN.CRIT:"{#POOLNAME}"}`.
Two conditions should match:
1. The first condition - utilization of the space should be above `{$ZPOOL.PUSED.MAX.WARN:"{#POOLNAME}"}%.`
2. The second condition - the pool free space is less than `{$ZPOOL.FREE.MIN.WARN:"{#POOLNAME}"}`.
Please check pool status.
|`last(/TrueNAS by SNMP/truenas.zpool.health[{#POOLNAME}]) <> 0`|Average|| ### LLD rule ZFS datasets discovery |Name|Description|Type|Key and additional info| |----|-----------|----|-----------------------| |ZFS datasets discovery|ZFS datasets discovery from FREENAS-MIB.
|SNMP agent|truenas.zfs.dataset.discovery**Preprocessing**
Discard unchanged with heartbeat: `6h`
MIB: FREENAS-MIB
The size of the dataset in bytes.
|SNMP agent|truenas.dataset.size.total[{#DATASET_NAME}]**Preprocessing**
Custom multiplier: `{#DATASET_ALLOC_UNITS}`
Discard unchanged with heartbeat: `1h`
MIB: FREENAS-MIB
The used size of the dataset in bytes.
|SNMP agent|truenas.dataset.used[{#DATASET_NAME}]**Preprocessing**
Custom multiplier: `{#DATASET_ALLOC_UNITS}`
MIB: FREENAS-MIB
The available size of the dataset in bytes.
|SNMP agent|truenas.dataset.avail[{#DATASET_NAME}]**Preprocessing**
Custom multiplier: `{#DATASET_ALLOC_UNITS}`
The used size of the dataset in %.
|Calculated|truenas.dataset.pused[{#DATASET_NAME}]| ### Trigger prototypes for ZFS datasets discovery |Name|Description|Expression|Severity|Dependencies and additional info| |----|-----------|----------|--------|--------------------------------| |TrueNAS: Dataset [{#DATASET_NAME}]: Very high space usage|Two conditions should match:
1. The first condition - utilization of the space should be above `{$DATASET.PUSED.MAX.CRIT:"{#DATASET_NAME}"}%.`
2. The second condition - the dataset free space is less than `{$DATASET.FREE.MIN.CRIT:"{#POOLNAME}"}`.
Two conditions should match:
1. The first condition - utilization of the space should be above `{$DATASET.PUSED.MAX.WARN:"{#DATASET_NAME}"}%.`
2. The second condition - the dataset free space is less than `{$DATASET.FREE.MIN.WARN:"{#POOLNAME}"}`.
ZFS volumes discovery from FREENAS-MIB.
|SNMP agent|truenas.zfs.zvols.discovery**Preprocessing**
Discard unchanged with heartbeat: `6h`
MIB: FREENAS-MIB
The size of the ZFS volume in bytes.
|SNMP agent|truenas.zvol.size.total[{#ZVOL_NAME}]**Preprocessing**
Custom multiplier: `{#ZVOL_ALLOC_UNITS}`
Discard unchanged with heartbeat: `1h`
MIB: FREENAS-MIB
The used size of the ZFS volume in bytes.
|SNMP agent|truenas.zvol.used[{#ZVOL_NAME}]**Preprocessing**
Custom multiplier: `{#ZVOL_ALLOC_UNITS}`
MIB: FREENAS-MIB
The available of the ZFS volume in bytes.
|SNMP agent|truenas.zvol.avail[{#ZVOL_NAME}]**Preprocessing**
Custom multiplier: `{#ZVOL_ALLOC_UNITS}`
Disks temperature discovery from FREENAS-MIB.
|SNMP agent|truenas.disk.temp.discovery**Preprocessing**
Discard unchanged with heartbeat: `6h`
MIB: FREENAS-MIB
The temperature of this HDD in mC.
|SNMP agent|truenas.disk.temp[{#DISK_NAME}]**Preprocessing**
Custom multiplier: `0.001`
Discard unchanged with heartbeat: `1h`
Disk temperature is high.
|`avg(/TrueNAS by SNMP/truenas.disk.temp[{#DISK_NAME}],5m) > {$TEMPERATURE.MAX.CRIT:"{#DISK_NAME}"}`|Average|| |TrueNAS: Disk [{#DISK_NAME}]: Average disk temperature is too high|Disk temperature is high.
|`avg(/TrueNAS by SNMP/truenas.disk.temp[{#DISK_NAME}],5m) > {$TEMPERATURE.MAX.WARN:"{#DISK_NAME}"}`|Warning|| ## Feedback Please report any issues with the template at [`https://support.zabbix.com`](https://support.zabbix.com) You can also provide feedback, discuss the template, or ask for help at [`ZABBIX forums`](https://www.zabbix.com/forum/zabbix-suggestions-and-feedback)