Linux - Multipath

Description

This connector enables the monitoring of HBA cards on all Linux systems through the multipath utility.

hardware linux

Target

Typical platform: Linux

Operating system: Linux

Prerequisites

Leverages: Linux multipath utility

Technology and protocols: Commands

This connector requires advanced privileges on the managed host for the command below:

• multipath

This connector therefore needs to run as root or you need to configure a privilege-escalation mechanism like sudo on the managed host to allow the monitoring account to run the command listed above.

Sample of /etc/sudoers to allow the above command to be run as root by the metricshub account:

metricshub ALL=(root) NOPASSWD: multipath

Examples

CLI

metricshub HOSTNAME -t linux -c +LinuxMultipath --ssh -u USER --sudo-command-list multipath

metricshub.yaml

resourceGroups:
  <RESOURCE_GROUP>:
    resources:
      <HOSTNAME-ID>:
        attributes:
          host.name: <HOSTNAME> # Change with actual host name
          host.type: linux
        connectors: [ +LinuxMultipath ] # Optional, to load only this connector
        protocols:
          ssh:
            username: <USERNAME> # Change with actual credentials
            password: <PASSWORD> # Encrypted using metricshub-encrypt
            useSudo: true
            useSudoCommands: [ "multipath" ]

Connector Activation Criteria

The Linux - Multipath connector will be automatically activated, and its status will be reported as OK if all the below criteria are met:

• The device type must be one of: Linux
• The command below succeeds on the monitored host:
  • Command: multipath -l
  • Output contains: \(^\\_\)\|\(^\-+-)` (regex)

Metrics

Type	Collected Metrics	Specific Attributes
lun	hw.lun.paths hw.status{hw.type="lun", state="present"}	array_name hw.parent.type id name