HP Smart Storage Arrays

Plugin: python.d.plugin Module: hpssa

Overview

This collector monitors HP Smart Storage Arrays metrics about operational statuses and temperatures.

It uses the command line tool ssacli. The exact command used is sudo -n ssacli ctrl all show config detail

This collector is supported on all platforms.

This collector only supports collecting metrics from a single instance of this integration.

Default Behavior

Auto-Detection

If no configuration is provided, the collector will try to execute the ssacli binary.

Limits

The default configuration for this integration does not impose any limits on data collection.

Performance Impact

The default configuration for this integration is not expected to impose a significant performance impact on the system.

Metrics

Metrics grouped by scope.

The scope defines the instance that the metric belongs to. An instance is uniquely identified by a set of labels.

Per HP Smart Storage Arrays instance

These metrics refer to the entire monitored application.

This scope has no labels.

Metrics:

Metric	Dimensions	Unit
hpssa.ctrl_status	ctrl{adapter slot}_status, cache{adapter slot}status, battery{adapter slot}_status per adapter	Status
hpssa.ctrl_temperature	ctrl{adapter slot}_temperature, cache{adapter slot}_temperature per adapter	Celsius
hpssa.ld_status	a dimension per logical drive	Status
hpssa.pd_status	a dimension per physical drive	Status
hpssa.pd_temperature	a dimension per physical drive	Celsius

Alerts

There are no alerts configured by default for this integration.

Setup

Prerequisites

Enable the hpssa collector

The hpssa collector is disabled by default. To enable it, use edit-config from the Netdata config directory, which is typically at /etc/netdata, to edit the python.d.conf file.

cd /etc/netdata   # Replace this path with your Netdata config directory, if different
sudo ./edit-config python.d.conf

Change the value of the hpssa setting to yes. Save the file and restart the Netdata Agent with sudo systemctl restart netdata, or the appropriate method for your system.

Allow user netdata to execute ssacli as root.

This module uses ssacli, which can only be executed by root. It uses sudo and assumes that it is configured such that the netdata user can execute ssacli as root without a password.

• Add to your /etc/sudoers file:

which ssacli shows the full path to the binary.

netdata ALL=(root)       NOPASSWD: /path/to/ssacli

• Reset Netdata's systemd unit CapabilityBoundingSet (Linux distributions with systemd)

The default CapabilityBoundingSet doesn't allow using sudo, and is quite strict in general. Resetting is not optimal, but a next-best solution given the inability to execute ssacli using sudo.

As the root user, do the following:

mkdir /etc/systemd/system/netdata.service.d
echo -e '[Service]\nCapabilityBoundingSet=~' | tee /etc/systemd/system/netdata.service.d/unset-capability-bounding-set.conf
systemctl daemon-reload
systemctl restart netdata.service

Configuration

File

The configuration file name for this integration is python.d/hpssa.conf.

You can edit the configuration file using the edit-config script from the Netdata config directory.

cd /etc/netdata 2>/dev/null || cd /opt/netdata/etc/netdata
sudo ./edit-config python.d/hpssa.conf

Options

There are 2 sections:

• Global variables
• One or more JOBS that can define multiple different instances to monitor.

The following options can be defined globally: priority, penalty, autodetection_retry, update_every, but can also be defined per JOB to override the global values.

Additionally, the following collapsed table contains all the options that can be configured inside a JOB definition.

Every configuration JOB starts with a job_name value which will appear in the dashboard, unless a name parameter is specified.

Config options

Name	Description	Default	Required
update_every	Sets the default data collection frequency.	5	no
priority	Controls the order of charts at the netdata dashboard.	60000	no
autodetection_retry	Sets the job re-check interval in seconds.	0	no
penalty	Indicates whether to apply penalty to update_every in case of failures.	yes	no
name	Job name. This value will overwrite the job_name value. JOBS with the same name are mutually exclusive. Only one of them will be allowed running at any time. This allows autodetection to try several alternatives and pick the one that works.		no
ssacli_path	Path to the ssacli command line utility. Configure this if ssacli is not in the $PATH		no
use_sudo	Whether or not to use sudo to execute ssacli	True	no

Examples

Local simple config

A basic configuration, specyfing the path to ssacli

local:
 ssacli_path: /usr/sbin/ssacli

Troubleshooting

Debug Mode

To troubleshoot issues with the hpssa collector, run the python.d.plugin with the debug option enabled. The output should give you clues as to why the collector isn't working.

• Navigate to the plugins.d directory, usually at /usr/libexec/netdata/plugins.d/. If that's not the case on your system, open netdata.conf and look for the plugins setting under [directories].

  cd /usr/libexec/netdata/plugins.d/

• Switch to the netdata user.

  sudo -u netdata -s

• Run the python.d.plugin to debug the collector:

  ./python.d.plugin hpssa debug trace