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10.21. Monitoring System Objects via SNMP¶

You can monitor Virtuozzo Hybrid Server objects via the Simple Network Management Protocol (SNMP). The implementation conforms to the same Structure of Management Information (SMI) rules as the data in the standard SNMP context: all objects are organized in a tree; each object identifier (OID) is a series of integers corresponding to tree nodes and separated by dots.

General information:

The OID of the root subtree with all the objects you can monitor is 1.3.6.1.4.1.26171.1.1.
The VIRTUOZZO-RMOND-SMI.txt information base file is required to monitor the objects. Its default location is /usr/share/snmp/mibs.

The following subsections describe ways to enable and use SNMP to monitor cluster objects.

10.21.1. Enabling SNMP Access¶

To enable SNMP access on a hardware node, do the following:

Install the rmond package.
```
# yum install rmond
```
If you have a Virtuozzo Storage cluster, add the following lines to the /etc/snmp/snmpd.local.conf file:
```
rwcommunity pdrs 127.0.0.1 .1.3.6.1.4.1.26171
rwcommunity pdrs <IP_network/subnet_mask> .1.3.6.1.4.1.26171
```
Where <IP_network> is the Virtuozzo Storage cluster network and <subnet_mask> covers all the nodes participating in the cluster.
Make sure the snmpd service is running.

10.21.2. Accessing System Objects via SNMP¶

You can access Virtuozzo Hybrid Server objects with SNMP tools of your choice, e.g., the free Net-SNMP suite for Linux. For example, to display information on the node, do as follows:

Install the net-snmp-utils package:
```
# yum install net-snmp-utils
```

Run the following snmpwalk command:

# snmpwalk -m /usr/share/snmp/mibs/VIRTUOZZO-RMOND-SMI.txt -c public -v2c 127.0.0.1 .1.3.6.1.4.1.26171.1.1

Typical output may be the following:

VIRTUOZZO-RMOND-SMI::rmondVeId."{b5f09b02-7358-4998-860c-c622653859f3}" = STRING: \
{b5f09b02-7358-4998-860c-c622653859f3}
VIRTUOZZO-RMOND-SMI::rmondVeName."{b5f09b02-7358-4998-860c-c622653859f3}" = STRING: centos
VIRTUOZZO-RMOND-SMI::rmondVeState."{b5f09b02-7358-4998-860c-c622653859f3}" = INTEGER: \
running(805306372)
VIRTUOZZO-RMOND-SMI::rmondVePerfectNode."{b5f09b02-7358-4998-860c-c622653859f3}" = STRING:
VIRTUOZZO-RMOND-SMI::rmondVeMemoryTotal."{b5f09b02-7358-4998-860c-c622653859f3}" = Counter64: \
2147483648
VIRTUOZZO-RMOND-SMI::rmondVeMemoryUsage."{b5f09b02-7358-4998-860c-c622653859f3}" = Counter64: \
1788
VIRTUOZZO-RMOND-SMI::rmondVeSwapTotal."{b5f09b02-7358-4998-860c-c622653859f3}" = Counter64: 0
VIRTUOZZO-RMOND-SMI::rmondVeSwapUsage."{b5f09b02-7358-4998-860c-c622653859f3}" = Counter64: 0
VIRTUOZZO-RMOND-SMI::rmondVeCpuNumber."{b5f09b02-7358-4998-860c-c622653859f3}" = INTEGER: 2
VIRTUOZZO-RMOND-SMI::rmondVeCpuLimit."{b5f09b02-7358-4998-860c-c622653859f3}" = INTEGER: 0
VIRTUOZZO-RMOND-SMI::rmondVeCpuUnits."{b5f09b02-7358-4998-860c-c622653859f3}" = INTEGER: 0
VIRTUOZZO-RMOND-SMI::rmondVeCpuSystem."{b5f09b02-7358-4998-860c-c622653859f3}" = INTEGER: 0
VIRTUOZZO-RMOND-SMI::rmondVeCpuUser."{b5f09b02-7358-4998-860c-c622653859f3}" = INTEGER: 0
VIRTUOZZO-RMOND-SMI::rmondVeType."{b5f09b02-7358-4998-860c-c622653859f3}" = INTEGER: vm(0)
VIRTUOZZO-RMOND-SMI::rmondVeUuid."{b5f09b02-7358-4998-860c-c622653859f3}" = STRING: \
{b5f09b02-7358-4998-860c-c622653859f3}
VIRTUOZZO-RMOND-SMI::rmondVeDiskName."{b5f09b02-7358-4998-860c-c622653859f3}".2881840264.\
645796544 = STRING: /vz/vmprivate/b5f09b02-7358-4998-860c-c622653859f3/harddisk.hdd
VIRTUOZZO-RMOND-SMI::rmondVeDiskTotal."{b5f09b02-7358-4998-860c-c622653859f3}".2881840264.\
645796544 = Counter64: 0
VIRTUOZZO-RMOND-SMI::rmondVeDiskUsage."{b5f09b02-7358-4998-860c-c622653859f3}".2881840264.\
645796544 = Counter64: 0
VIRTUOZZO-RMOND-SMI::rmondVeDiskReadRequests."{b5f09b02-7358-4998-860c-c622653859f3}".\
2881840264.645796544 = Counter64: 2
VIRTUOZZO-RMOND-SMI::rmondVeDiskWriteRequests."{b5f09b02-7358-4998-860c-c622653859f3}".\
2881840264.645796544 = Counter64: 16714
VIRTUOZZO-RMOND-SMI::rmondVeDiskReadBytes."{b5f09b02-7358-4998-860c-c622653859f3}".2881840264.\
645796544 = Counter64: 77824
VIRTUOZZO-RMOND-SMI::rmondVeDiskWriteBytes."{b5f09b02-7358-4998-860c-c622653859f3}".2881840264.\
645796544 = Counter64: 1073883648
VIRTUOZZO-RMOND-SMI::rmondVeDiskHash1."{b5f09b02-7358-4998-860c-c622653859f3}".2881840264.\
645796544 = Counter32: 2881840264
VIRTUOZZO-RMOND-SMI::rmondVeDiskHash2."{b5f09b02-7358-4998-860c-c622653859f3}".2881840264.\
645796544 = Counter32: 645796544
VIRTUOZZO-RMOND-SMI::rmondVeNetworkInterface."{b5f09b02-7358-4998-860c-c622653859f3}"."" = STRING:
VIRTUOZZO-RMOND-SMI::rmondVeNetworkInBytes."{b5f09b02-7358-4998-860c-c622653859f3}"."" = \
Counter64: 6743089
VIRTUOZZO-RMOND-SMI::rmondVeNetworkOutBytes."{b5f09b02-7358-4998-860c-c622653859f3}"."" = \
Counter64: 12472
VIRTUOZZO-RMOND-SMI::rmondVeNetworkInPackets."{b5f09b02-7358-4998-860c-c622653859f3}"."" = \
Counter64: 33658
VIRTUOZZO-RMOND-SMI::rmondVeNetworkOutPackets."{b5f09b02-7358-4998-860c-c622653859f3}"."" = \
Counter64: 159
VIRTUOZZO-RMOND-SMI::rmondVeNetworkMacAddress."{b5f09b02-7358-4998-860c-c622653859f3}"."" = \
STRING: 001C42C329B0
VIRTUOZZO-RMOND-SMI::rmondVeVCpuOrdinal."{b5f09b02-7358-4998-860c-c622653859f3}".0 = INTEGER: 0
VIRTUOZZO-RMOND-SMI::rmondVeVCpuOrdinal."{b5f09b02-7358-4998-860c-c622653859f3}".1 = INTEGER: 1
VIRTUOZZO-RMOND-SMI::rmondVeVCpuTime."{b5f09b02-7358-4998-860c-c622653859f3}".0 = Counter64: \
59720000000
VIRTUOZZO-RMOND-SMI::rmondVeVCpuTime."{b5f09b02-7358-4998-860c-c622653859f3}".1 = Counter64: \
26720000000
VIRTUOZZO-RMOND-SMI::rmondLocalVeNumber.0 = INTEGER: 1
VIRTUOZZO-RMOND-SMI::rmondVeLimit.0 = INTEGER: 65535
VIRTUOZZO-RMOND-SMI::rmondLicenseVeNumber.0 = INTEGER: 65535
VIRTUOZZO-RMOND-SMI::rmondLicenseCtNumber.0 = INTEGER: 65535
VIRTUOZZO-RMOND-SMI::rmondLicenseVmNumber.0 = INTEGER: 65535
VIRTUOZZO-RMOND-SMI::rmondLicenseCtUsage.0 = INTEGER: 1
VIRTUOZZO-RMOND-SMI::rmondLicenseVmUsage.0 = INTEGER: 0
VIRTUOZZO-RMOND-SMI::rmondLicenseVmUsage.0 = No more variables left in this MIB View (It is past \
the end of the MIB tree)

10.21.3. Description of System Objects¶

The tables below describe objects you can monitor:

Table 10.21.3.1 Objects related to virtual environments¶
Object	Description
VIRTUOZZO-RMOND-SMI::rmondVeId	Virtual environment ID.
VIRTUOZZO-RMOND-SMI::rmondVeName	Virtual environment name.
VIRTUOZZO-RMOND-SMI::rmondVeState	Virtual environment state.
rVIRTUOZZO-RMOND-SMI::mondVePerfectNode	The perfect node for the virtual environment.
VIRTUOZZO-RMOND-SMI::rmondVeMemoryTotal	Total memory set for the virtual environment.
VIRTUOZZO-RMOND-SMI::rmondVeMemoryUsage	Memory usage inside the virtual environment.
VIRTUOZZO-RMOND-SMI::rmondVeSwapTotal	Total swap space set for the virtual environment.
VIRTUOZZO-RMOND-SMI::rmondVeSwapUsage	Swap space usage inside the virtual environment.
VIRTUOZZO-RMOND-SMI::rmondVeCpuNumber	Number of logical CPU cores set for the virtual environment.
VIRTUOZZO-RMOND-SMI::rmondVeCpuLimit	CPU limit set for the virtual environment.
VIRTUOZZO-RMOND-SMI::rmondVeCpuUnits	CPU units allocated to the virtual environment.
VIRTUOZZO-RMOND-SMI::rmondVeCpuSystem	CPU usage of the system processes inside the virtual environment.
VIRTUOZZO-RMOND-SMI::rmondVeCpuUser	CPU usage of the user processes inside the virtual environment.
VIRTUOZZO-RMOND-SMI::rmondVeType	Virtual environment type.
VIRTUOZZO-RMOND-SMI::rmondVeUuid	Virtual environment UUID reported by the dispatcher.

Table 10.21.3.2 Objects related to VM disks¶
Object	Description
VIRTUOZZO-RMOND-SMI::rmondVeDiskName	Full path to the VM hard disk.
VIRTUOZZO-RMOND-SMI::rmondVeDiskTotal	Total space of the VM disk.
VIRTUOZZO-RMOND-SMI::rmondVeDiskUsage	Used space of the VM disk.
VIRTUOZZO-RMOND-SMI::rmondVeDiskReadRequests	Read requests rate of the VM disk.
VIRTUOZZO-RMOND-SMI::rmondVeDiskWriteRequests	Write requests rate of the VM disk.
VIRTUOZZO-RMOND-SMI::rmondVeDiskReadBytes	Read rate of the VM disk, in bytes.
VIRTUOZZO-RMOND-SMI::rmondVeDiskWriteBytes	Write rate of the VM disk, in bytes.
VIRTUOZZO-RMOND-SMI::rmondVeDiskHash1	Low-order 32 bits of the VM disk hash.
VIRTUOZZO-RMOND-SMI::rmondVeDiskHash2	High-order 32 bits of the VM disk hash.

Table 10.21.3.3 Objects related to VE network interfaces¶
Object	Description
VIRTUOZZO-RMOND-SMI::rmondVeNetworkInterface	Network interface name of the virtual environment.
VIRTUOZZO-RMOND-SMI::rmondVeNetworkInBytes	Incoming traffic, in bytes, received through the VE network interface.
VIRTUOZZO-RMOND-SMI::rmondVeNetworkOutBytes	Outgoing traffic, in bytes, sent through the VE network interface.
VIRTUOZZO-RMOND-SMI::rmondVeNetworkInPackets	Incoming traffic, in packets, received through the VE network interface.
VIRTUOZZO-RMOND-SMI::rmondVeNetworkOutPackets	Outgoing traffic, in packets, sent through the VE network interface.
VIRTUOZZO-RMOND-SMI::rmondVeNetworkMacAddress	MAC address of the VE network interface.

Table 10.21.3.4 Objects related to attributes¶
Object	Description
VIRTUOZZO-RMOND-SMI::rmondVeVCpuOrdinal	Virtual CPU ordinal numbers inside the virtual environment.
VIRTUOZZO-RMOND-SMI::rmondVeVCpuTime	Virtual CPU execution time inside the virtual environment, in nanoseconds.
VIRTUOZZO-RMOND-SMI::rmondLocalVeNumber	Number of virtual environments on the host.
VIRTUOZZO-RMOND-SMI::rmondVeLimit	Allowed number of virtual environments on the host defined by the user.
VIRTUOZZO-RMOND-SMI::rmondLicenseVeNumber	Allowed number of virtual environments on the host defined by the license.
VIRTUOZZO-RMOND-SMI::rmondLicenseCtNumber	Allowed number of containers on the host defined by the license.
VIRTUOZZO-RMOND-SMI::rmondLicenseVmNumber	Allowed number of virtual machines on the host defined by the license.
VIRTUOZZO-RMOND-SMI::rmondLicenseCtUsage	Allowed usage of containers defined by the license.
VIRTUOZZO-RMOND-SMI::rmondLicenseVmUsage	Allowed usage of virtual machines defined by the license.

Version 7.5 — Feb 23, 2024

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