Linux Monitor

ZenPacks.zenoss.LinuxMonitor

This ZenPack provides monitoring support for Linux, leveraging OpenSSH for data access. In addition to system health, disks, LVM, services, and processes are monitored.

The features added by this ZenPack can be summarized as follows. They are each detailed further below.

• Monitors multiple Linux flavors and versions
• OpenStack LVM volume integration
• Monitors LVM Physical Volumes, Volume Groups, Thin Pools, and Logical Volumes
• Block Device monitoring
• Service Monitoring via Sysvinit, Systemd, or Upstart
• Root Cause Analysis with Impact Support
• Dynamic View support

This version of the LinuxMonitor ZenPack completely replaces the EnterpriseLinux ZenPack. To avoid errors arising from conflicts between them, the EnterpriseLinux ZenPack should be removed after the new LinuxMonitor ZenPack has been installed.

Open Source

This ZenPack is developed and supported by Zenoss Inc. Contact Zenoss to request more information regarding this or any other ZenPacks. Click here to view all available Zenoss Open Source ZenPacks.

Releases

Version-2.3.5

• Released on 2024/12/05
• Requires ZenPackLib ZenPack
• Compatible with Zenoss Cloud and Zenoss Resource Manager 6.x

Version-2.3.4

• Released on 2023/08/21
• Requires ZenPackLib ZenPack
• Compatible with Zenoss Cloud and Zenoss Resource Manager 6.x

Discovery

The following entities will be automatically discovered. The attributes and collections will be updated on Zenoss normal remodeling interval which defaults to every 12 hours.

Hard Disks

• Attributes: Name, Size, LVM PV

  Note

  • On CentOS5, RHEL5 (and possibly others), the lsblk command is not available, in which case this component will be missing.
  • To ignore unmounted drives, set the zIgnoreUnmounted configuration property to True.

Processors

• Attributes: Socket, Manufacturer, Model, Speed, Ext Speed, L1, L2, Voltage

IP Services

• Attributes: Name, Protocol, Port, IPs, Description

File Systems

• Attributes: Mount Point, Storage Device, Total Bytes, Used Bytes, Free Bytes, % Util

  Note

  Some links between the server and clients of NFS File Systems and other storage devices are intentionally removed as they significantly impact performance.

Interfaces

• Attributes: IP Interface, IP Addresses, Description, MAC Address, Operational Status, Admin Status

Network Routes

• Attributes: Destination, Next Hop, Interface, Protocol, Type

Snapshot Volumes

• Attributes: Name, Volume Group, Logical Volume, Size, Block Device, File System, Active Relations: Logical Volumes

Physical Volumes

• Attributes: Name, Format, Size, Free, % Util, Block Device, Volume Group Relations: Volume Groups

Volume Groups

• Attributes: Name, Size, Free, % Util, Snapshot Volumes, Logical Volumes, Physical Volumes, Thin Pools

Logical Volumes

• Attributes: Name, Volume Group, Size, Block Device, File System, Active, Snapshot Volumes Relations: Volume Groups, Thin Pools

Thin Pools

• Attributes: Name, Volume Group, Size, Block Device, File System, Active, Metadata Size Relations: Volume Groups

OS Processes

• Attributes: Process Class, Process Set, Restart Alert?, Fail Severity

OS Services

• Attributes: Name, Description, Init System

  Note

  Some links between the server and clients of NFS File Systems and other storage devices are intentionally removed as they significantly impact performance.

Set Linux Server Monitoring Credentials

All Linux servers must have a device entry in an organizer below the /Devices/Server/SSH/Linux device class.

Tip: The SSH monitoring feature will attempt to use key-based authentication before using a configuration properties password value.

1. Select INFRASTRUCTURE from the top navigation bar.
2. Click the device name in the device list on the right.
3. On the Device Overview page, select Configuration Properties from the left pane.
4. Verify the credentials for the service account. The zCommandUsername property must be set. To use public key authentication, the public portion of the key referenced in zKeyPath is must be listed in the ~/.ssh/authorized_keys file for the appropriate user on the Linux server. If this key has a passphrase you should set it in the zCommandPassword property. If you'd rather use password authentication than configure keys, simply put the user's password in the zCommandPassword property.

Name	Description
zCommandUsername	Linux user with privileges to gather performance information.
zCommandPassword	Password for the Linux user.

Using a Root User

This ZenPack requires the ability to run the pvs, vgs, lvs, systemctl, initctl, df, and service commands, remotely on your Linux server(s) using SSH. By default, these commands are only allowed to be run locally. To run these commands remotely, the root user must not be required to use a tty.

1. Install the sudo package on your server.

2. Allow root user to execute commands via ssh without a TTY.

   1. Run the visudo command to edit the /etc/sudoers file.

   2. Find the line containing root ALL=(ALL) ALL.

   3. Add this line underneath it: Defaults:root !requiretty

   4. Save the changes and exit.

Using a Non-Root User

This ZenPack requires the ability to run the pvs, vgs, lvs, systemctl, initctl, df, and service commands, remotely on your Linux server(s) using SSH. By default, most of these commands are only allowed to be run by the root user. The output of the systemctl, initctl, df, and service commands can vary depending on whether or not they are executed by a user with root privileges. Furthermore, this ZenPack expects these commands be in the user's path. Normally this is only true for the root user.

Assuming that you've created a user named zenmonitor on your Linux servers for monitoring purposes, you can follow these steps to allow the zenmonitor user to run the commands.

1. Install the sudo package on your server

2. Allow the zenmonitor user to run the required commands via SSH without a tty.

   • Edit /etc/sudoers.d/zenoss (or /etc/sudoers if sudoers.d is not supported) and add the following lines to the bottom of the file:

     Defaults:zenmonitor !requiretty
     
     Cmnd_Alias ZENOSS_CMDS = \
         /usr/sbin/dmidecode, \
         /bin/df, \
         /bin/dmesg
     
     Cmnd_Alias ZENOSS_LVM_CMDS = \
         /sbin/pvs, /usr/sbin/pvs, \
         /sbin/vgs, /usr/sbin/vgs, \
         /sbin/lvs, /usr/sbin/lvs
     
     Cmnd_Alias ZENOSS_SVC_CMDS = \
         /sbin/initctl list, \
         /sbin/service *, /usr/sbin/service *, \
         /sbin/runlevel, \
         /bin/ls -l /etc/rc?.d/
     
     zenmonitor ALL=(ALL) NOPASSWD: \
         ZENOSS_CMDS, \
         ZENOSS_LVM_CMDS, \
         ZENOSS_SVC_CMDS
     

   • Save, ensuring all paths for these commands are correct

Make sure that you have the latest release of OpenSSH installed on the target system. This is especially important for older versions of RHEL, CentOS, Ubuntu, and SUSE Linux.

If using a non-root user on SUSE Linux, you must run the following as root due to SUSE restrictions on the dmesg command: echo 0 > /proc/sys/kernel/dmesg_restrict

On SUSE Linux, the pvs, vgs, and lvs commands are located in /sbin. Please ensure that each command can be manually executed remotely.

The zSshConcurrentSessions configuration property has a default value of 5. If you increase this value, you must update the allowed number of sessions in the sshd configuration on the target device and restart the sshd daemon.

Add a Linux Server

The following procedure assumes that credentials have been set.

1. Select Infrastructure from the navigation bar.

2. Select Add a Single Device from the Add Device list of options. The Add a Single Device dialog appears.

3. Enter the following information in the dialog:

   Name	Description
   Name or IP	Linux host to add.
   Device Class	/Server/SSH/Linux
   Model Device	Select this option unless adding a device with a user name and password different than found in the device class. If you do not select this option, then you must add the credentials and then manually model the device.

4. Click Add.

Alternatively you can use zenbatchload to add Linux servers from the command line. To do this, you must create a text file with the host name, username, and password of each of the servers you want to add. Multiple endpoints can be added under the same /Devices/Server/SSH/Linux section. Here is an example.

/Devices/Server/SSH/Linux
HOST-NAME zCommandUsername="USER", zCommandPassword="PASSWORD"

You can then load the Linux servers into the Zenoss Platform with the following command:

zenbatchload FILE-NAME

Modeling and Monitoring OS Services

The Linux OS services are modeled using the zenoss.cmd.linux.os_service modeler plugin. The following systems are supported:

• RHEL 5
• RHEL 6
• RHEL 7
• RHEL 8
• CentOS 5
• CentOS 6
• CentOS 7
• CentOS 8
• Debian 8
• Debian 9
• Suse 12
• Ubuntu 12
• Ubuntu 14
• Ubuntu 15
• Ubuntu 16

Version 2.3.0 supports monitoring the status of the systemd, upstart, and systemV system services. The OSService-SYSTEMD, OSService-UPSTART and OSService-SYSTEMD monitoring templates are automatically bound to a service component based on the target's modeled init system value. The configuration properties zLinuxServicesModeled and zLinuxServicesNotModeled restrict the services that are modeled and thereby monitored.

For systemd, only services that are enabled (or have "enabled-runtime" status) are modeled and monitored. Furthermore, "oneshot" services or services with unmet conditions are not modeled or monitored. In order to prevent a service from being modeled and monitored by Zenoss, the service will have to be stopped and disabled. One of those actions alone won't be sufficient. Another way to prevent a service from being modeled is to add it to the zLinuxServicesNotModeled zProperty. To also model active services of any UnitFileState (enabled, disabled, static, etc.), the zLinuxModelAllActiveServices configuration property should be set to True.

Upstart devices monitor all enabled services managed by upstart and additionally also monitor systemV services that run in the current runlevel of the same device. The Init System property, found in the Details menu of the service, displays which init system the service is managed by.

SystemV devices model and monitor all services in the current runlevel.

Name	Description
zLinuxServicesModeled	Accepts regular expressions that matches one or more services to model
zLinuxServicesNotModeled	Accepts regular expressions that matches one or more services to not model
zLinuxModelAllActiveServices	Boolean value used for systemd services that models active services of any UnitFileState

zLinuxServiceModeled and zLinuxServiceNotModeled can support multiple regular expressions separated by new lines. Although the zLinuxModelAllActiveServices property models all active services that are also disabled when checked, this property will still not model "oneshot" services or those services whose conditions are not met. The OSService monitoring template generates events on every collection cycle for a service that is down. The events are automatically cleared if the service is up again.

zLinuxServicesNotModeled overrules zLinuxServicesModeled. If a service name matches the regular expressions in both configuration properties, the service will not modeled.

Installed Items

Installing this ZenPack will add the following items to your Zenoss system.

Configuration Properties

• zLinuxServicesModeled
• zLinuxServicesNotModeled

Device Classes

• /Server/SSH/Linux

Modeler Plugins

• zenoss.cmd.uname
• zenoss.cmd.linux.df
• zenoss.cmd.linux.alt_kernel_name
• zenoss.cmd.linux.cpuinfo
• zenoss.cmd.linux.interfaces
• zenoss.cmd.linux.lvm
• zenoss.cmd.linux.memory
• zenoss.cmd.linux.netstat_an
• zenoss.cmd.linux.netstat_rn
• zenoss.cmd.linux.process
• zenoss.cmd.linux.rpm
• zenoss.cmd.linux.sudo_dmidecode
• zenoss.cmd.linux.os_release
• zenoss.cmd.linux.os_service

As of version 2.3.0, the zenoss.cmd.linux.rpm and zenoss.cmd.linux.alt_kernel_name modeler plugins are disabled by default on new installs. If upgrading from a version previous to 2.3.0 they will still be enabled by default. We recommend that you disable the zenoss.cmd.linux.alt_kernel_name modeler plugin if you have a customized /etc/issue file as the customization could affect modeling results.

Monitoring Templates

• Device (in /Devices/Server/SSH/Linux)
• HardDisk (in /Devices/Server/SSH/Linux)
• IpService (in /Devices)
• FileSystem (in /Devices/Server/SSH/Linux)
• ethernetCsmacd (in /Devices/Server/SSH/Linux)
• SnapshotVolume (in /Devices/Server/SSH/Linux)
• PhysicalVolume (in /Devices/Server/SSH/Linux)
• VolumeGroup (in /Devices/Server/SSH/Linux)
• LogicalVolume (in /Devices/Server/SSH/Linux)
• OSProcess (in /Devices/Server/SSH/Linux)
• OSService-SYSTEMD (in /Devices/Server/SSH/Linux)
• OSService-UPSTART (in /Devices/Server/SSH/Linux)
• OSService-SYSTEMV (in /Devices/Server/SSH/Linux)
• ThinPool (in /Devices/Server/SSH/Linux)

Device (in /Devices/Server/SSH/Linux)

• Data Points
  • ssCpuUsedPerCpu
  • ssCpuIdlePerCpu
  • ssCpuUserPerCpu
  • ssCpuNicePerCpu
  • ssCpuSystemPerCpu
  • ssCpuWaitPerCpu
  • ssCpuInterruptPerCpu
  • ssCpuSoftInterruptPerCpu
  • ssCpuStealPerCpu
  • sysUpTime
  • laLoadInt15
  • laLoadInt5
  • laLoadInt1
  • Buffers
  • Cached
  • MemFree
  • MemTotal
  • SwapFree
  • SwapTotal
  • ssIORawReceived
  • ssIORawSent
• Thresholds
  • None

• Graphs

  • CPU Utilization
  • Load Average
  • Memory Utilization
  • Memory Usage
  • IO Throughput

  In version 2.3.0, support for the MemAdjustedUsed and MemAdjustedUsedPercent data points was added. These data points include Buffers, Cached, and Free in the memory used calculation. These data points are not added by default. To use them, you will need to create data points called MemAdjustedUsed and MemAdjustedUsedPercent in the mem data source on the device template.

CPU (in /Devices/Server/SSH/Linux)

• Data Points
  • ssCpuUsed
  • ssCpuIdle
  • ssCpuUser
  • ssCpuNice
  • ssCpuSystem
  • ssCpuWait
  • ssCpuInterrupt
  • ssCpuSoftInterrupt
  • ssCpuSteal
• Thresholds
  • None
• Graphs
  • CPU Utilization

HardDisk (in /Devices/Server/SSH/Linux)

• Data Points
  • readsCompleted
  • readsMerged
  • sectorsRead
  • msReading
  • writesCompleted
  • writesMerged
  • sectorsWritten
  • msWriting
  • ioInProgress
  • msDoingIO
  • msDoingIOWeighted
• Thresholds
  • None
• Graphs
  • Operation Throughtput
  • Merge Rate
  • Sector Throughtput
  • IO Operation in Progress
  • IO Utilization
  • Weighted IO Utilization

Note

There were significant changes between 2.4 and 2.6 in the I/O subsystem. As a result, some statistic information disappeared. The translation from a disk address relative to a partition to the disk address relative to the host disk happens much earlier. All merges and timings now happen at the disk level rather than at both the disk and partition level as in 2.4. There are only four fields available for partitions on 2.6 machines and in this case few data points will be missed.

IpService (in /Devices)

• Data Points
  • None
• Thresholds
  • None
• Graphs
  • None

FileSystem (in /Devices/Server/SSH/Linux)

• Data Points
  • usedBlocks
  • percentInodesUsed
  • totalInodes
  • usedInodes
  • availableInodes
• Thresholds
  • 90 percent used
• Graphs
  • Utilization
  • Usage
  • Inode Utilization
  • Inode Usage

Note

File Systems components will also show graphs from their related Logical Volume or Hard Disk.

ethernetCsmacd (in /Devices/Server/SSH/Linux)

• Data Points
  • ifInOctets
  • ifOutOctets
  • ifInPackets
  • ifOutPackets
  • ifInErrors
  • ifInDropped
  • ifInOverruns
  • ifOutErrors
  • ifOutCarrier
  • ifOutCollisions
  • ifOutDropped
• Thresholds
  • 75 percent utilization
• Graphs
  • Data Throughput
  • Packet Throughput
  • Error Rate

SnapshotVolume (in /Devices/Server/SSH/Linux)

• Data Points
  • state
  • health
• Thresholds
  • None
• Graphs
  • None

Note

Snapshot Volumes will also show graphs from its related Volume Group and Hard Disk.

PhysicalVolume (in /Devices/Server/SSH/Linux)

• Data Points
  • size
  • free
  • allocatable
  • exported
  • missing
• Thresholds
  • unallocatable
  • exported
  • missing
• Graphs
  • Utilization

Notes

Physical Volumes will also show graphs from its related Hard Disk.

VolumeGroup (in /Devices/Server/SSH/Linux)

• Data Points
  • size
  • free
  • partial
• Thresholds
  • partial
• Graphs
  • Utilization

Note

Volume Groups will also show graphs from its related Physical Volumes.

LogicalVolume (in /Devices/Server/SSH/Linux)

• Data Points
  • state
  • health
• Thresholds
  • None
• Graphs
  • None

Note

Logical Volumes will also show graphs from its related Volume Group and Hard Disk.

ThinPool (in /Devices/Server/SSH/Linux)

• Data Points
  • state
  • health
  • percentDataUsed
  • percentMetaDataUsed
• Thresholds
  • 90 percent used
• Graphs
  • Pool Utilization

Note

Thin Pools will also show graphs from its related Volume Group and Hard Disk.

OSProcess (in /Devices/Server/SSH/Linux)

• Data Points
  • count
  • cpu
  • mem
• Thresholds
  • count
• Graphs
  • Process Count
  • CPU Utilization
  • Memory Usage

OSService-SYSTEMD (in /Devices/Server/SSH/Linux)

• Data Points
  • status
• Thresholds
  • None
• Graphs
  • None

OSService-UPSTART (in /Devices/Server/SSH/Linux)

• Data Points
  • status
• Thresholds
  • None
• Graphs
  • None

OSService-SYSTEMV (in /Devices/Server/SSH/Linux)

• Data Points
  • status
• Thresholds
  • None
• Graphs
  • None

Service Impact

When combined with the Zenoss Service Dynamics product, this ZenPack adds built-in Service Impact capability for services running on Linux. The following service impact relationships are automatically added. These will be included in any services that contain one or more of the explicitly mentioned entities.

Service Impact Relationships

• HardDisk, IpInterface, IpService, OSProcess, CPU, OSService are impacted by LinuxDevice
• PhysicalVolume is impacted by HardDisk
• VolumeGroup is impacted by PhysicalVolume
• LogicalVolume is impacted by VolumeGroup or HardDisk
• SnapshotVolume is impacted by LogicalVolume or HardDisk
• FileSystem is impacted by SnapshotVolume or LogicalVolume or HardDisk or LinuxDevice or ThinPool
• ThinPool is impacted by VolumeGroup or HardDisk or logicalVolume

Daemons

Type	Name
Modeler	zenmodeler
Performance Collector	zencommand

Supported Distributions

The following Linux distributions are officially supported. Other distributions may also be supported, especially derivatives of Debian and Red Hat Enterprise Linux.

Linux Flavor	Version	Released	End of Support
Ubuntu	22.04 LTS	April 2022	April 2027
	20.04 LTS	April 2020	April 2025
	18.04 LTS	April 2018	April 2023
	16.04 LTS	April 2016	April 2021
	15.10	October 2015	July 2016
	15.04	April 2015	February 2016
	14.04 LTS	April 2014	April 2019
	12.04 LTS	April 2012	April 2017
Debian	9	June 2017	June 2022
	8	April 2015	April 2020
RedHat Enterprise Linux	9	May 2022	May 2035
	8	May 2019	May 2032
	7	June 2014	June 2020
	6	November 2010	November 2020
	5	March 2007	March 2017
CentOS	9	May 2022	May 2035
	8	May 2019	May 2032
	7	July 2014	June 2024
	6	July 2011	November 2020
	5	April 2007	March 2017
SUSE Linux Enterprise Server	12	October 2014	October 2027
	11	March 2009	March 2022

Changes

2.3.5

• Fix Interfaces monitoring for the latest Linux versions. (ZPS-8020)
• Tested with Zenoss Cloud and Zenoss Resource Manager 6.7.0

2.3.4

• Fix LVM components representation on the Smart View. (ZPS-6103)
• Tested with Zenoss Cloud and Zenoss Resource Manager 6.7.0

2.3.3

• Fix and optimize various impact relationship calculations. (ZPS-5664, ZPS-5711, ZPS-5792, ZPS-5806)
• Fix "NotFound" modeling exception for snapshots of thin pools. (ZPS-5816)

2.3.2

• Guard against out of date sudoers configuration in service monitoring. (ZPS-4334)
• Allow filesystem modeling and monitoring to work with or without sudo access. (ZPS-4340)
• Fix LVM monitoring when */sbin not in user's path. (ZPS-4349)
• Fix undocumented sudo usage of "systemctl status". (ZPS-4121)
• Update reduced recommended sudoers configuration. (ZPS-4121)
• Tested with Zenoss Cloud and Zenoss Resource Manager 6.3.0, 6.2.1, and 5.3.3.

2.3.1

• Fix CPU Busy metric on "CPU Utilization" graph. (ZPS-3531)
• Fix 'no volume group' warning events during modeling. (ZPS-3475)
• Add Idle, Interrupt, Soft Interrupt, Steal metrics on CPU Utilization graph. (ZPS-3547)
• Enable better management of service events. (ZPS-3616)
• Fix OSService template binding errors in zenhub. (ZPS-3709)
• Add systemV services to upstart devices. (ZPS-3478)
• Update systemd services to not model oneshot or unmet conditions. (ZPS-3478, ZPS-3545)
• Added new zProperty for systemd, zLinuxModelAllActiveServices. (ZPS-3478)
• Added migration script to change the default value of zLinuxServicesModeled.
• Tested with Zenoss Resource Manager 4.2.5 RPS 743, 5.3.3 and 6.1.2 and Service Impact 5.3.1.

2.3.0

• The zenoss.cmd.linux.rpm modeler plugin is now disabled by default. (ZPS-1603)
• Fix netmask as hex parsing and KeyError when meminfo is absent. (ZPS-2462)
• Added ZenPackLib requirement. (ZPS-3000)
• Fix custom banner errors and disabled zenoss.cmd.linux.alt_kernel_name modeler plugin by default. (ZPS-2998)
• Additionally supports OS service monitoring for service modeling released in 2.0.0. (ZPS-2722)
• Add dpkg support to zenoss.cmd.linux.rpm modeler plugin. (ZPS-1474)
• Added support for Thin Pool Monitoring. (ZPS-2494)
• Fixed alert spam for services. (ZPS-1625)
• Added monitoring for individual processor components. (ZPS-2444)
• Added Nice CPU usage for Processors. (ZPS-3315)
• Fix OS Manufacturer not showing. (ZPS-1864)
• Add sudo to df commands. (ZPS-1594)
• Remove old modeler plugins, ensure model consistency. (ZPS-3411)
• Add support for adjustedMemory datapoints. (ZPS-862)
  • New Component: The following Component was added:
    • ThinPools
  • New Graph: The following graph was added:
    • ThinPools: Pool MetaData/Data Utilization
  • New Relationships: The following relationships were added:
    • VolumeGroup 1:MC ThinPool
    • ThinPool 1:M LogicalVolume
• Tested with Zenoss Resource Manager 4.2.5 RPS 743, 5.3.3 and 6.1.2 and Service Impact 5.3.0

2.2.7

• Allow for restricted dmesg access in Debian 9 and SUSE 12. (ZPS-1933, ZPS-550)

2.2.6

• Fix issue with links between Linux and NetApp FileSystem components. (ZPS-1736)
• Prevent the creation of orphaned processes when an NFS mount becomes unavailable. (ZPS-1499)
• Document support for RHEL 7, Ubuntu 16.04 LTS, and Debian 8. (ZPS-1820)
• Fix spurious warnings in zencommand log when monitoring NFS mounted filesystems. (ZPS-1823)
• Calculate memory utilization using "MemAvailable" when possible. (ZPS-1144)
• Fix 0.0% utilization in Windows filesystem threshold event summaries. (ZPS-1844)

2.2.5

• Fix modeler 'AttributeError: type' error when zInterfaceMapIgnoreTypes is set. (ZPS-1695)
• Fix RPN errors in aliases for memory, swap, and LVM (ZPS-757)

2.2.4

• Escape the commandTemplate expression for disk and idisk datasources to avoid TALES errors. (ZPS-1616)

2.2.3

• Use FileSystem_NFS_Client template for all NFS mounts (including nfs4). (ZPS-1495)
• Fix "IndexError" when modeling tun interfaces. (ZPS-971)
• Add percentUsed datapoint for filesystems. Use for UI and events. (ZPS-1545)

2.2.2

• Fix query service overloading during Analytics ETL of Linux devices. (ZPS-1312)
• Honor zFileSystemIgnoreTypes in zenoss.cmd.linux.df modeler plugin. (ZPS-1494)

2.2.1

• Improved OS Model parser for os_release modeler plugin. (ZPS-1177)

2.2.0

• Add disk id modeling for correlation with underlying hardware. (ZPS-510)
• Add link to underlying hardware from disk details if possible. (ZPS-939)
• Handle root filesystem reservation more like "df" command. (ZPS-1266)
• Fix NFS filesystem monitoring not working as expected. (ZPS-1006)

2.1.3

• Properly account for reserved space to match df output. (ZPS-26739)

2.1.2

• Improve OS process detection. (ZPS-659)
• Quiet modeler error messages for missing services. (ZPS-644)

2.1.1

• Fix "ifconfig" is checked before "ip" Linux Monitor (ZEN-25425)

2.1.0

• Add cpu_ssCpuUsedPerCpu and mem_MemUsedPercent datapoints. (ZEN-22978)
• Add common datapoint aliases. (ZEN-24619)
• Improve ability to model network interface speeds.
• Improve support for NFS filesystem impact. (ZEN-24478)
• Improve NFS filesystem linking to NFS server. (ZEN-24478)
• Disable monitor of NFS mounted filesystems by default. (ZEN-24650)
• Prevent threshold violations on interfaces with unknown speed.
• Fix IndexError when modeling older LVM versions. (ZEN-25792)
• Fix setIdForRelationship error when modeling some LVM versions. (ZEN-22409)

2.0.6

• Fix "string index out of range" error when modeling older LVM versions (ZEN-25792)

2.0.4

• Fix "unimplemented" SSH error on 4.2.5 SP709. (ZEN-23392)

2.0.3

• Fix migration of Linux devices to new type. (ZEN-24293)

2.0.2

• Added property to ignore unmounted hard disks
• Improve 1.x to 2.x migration time. (ZEN-24024)

2.0.1

• Fix invalid event class in filesystem threshold

2.0.0

• Added support for LVM Physical Volumes, Volume Groups, and Logical Volumes
• Added support for OpenStack-LVM Integration
• Added disk (block device) monitoring.
• Added service monitoring (sysvinit, systemd, upstart).
• Combined EnterpriseLinux and LinuxMonitor capabilities.
• Enhanced Impact Support
• Added Dynamic View Support
• Completely replaces EnterpriseLinux ZenPack
• Many other smaller improvements.