[os::linux::snmp::plugin] - Mode(storage) no add-access

[monsieurpouet]

Bug report

Quick description

The --add-access option on the Linux SNMP plugin (centreon_linux_snmp.pl, storage mode) does not add any access information to the output, while the equivalent option works correctly on the QNAP storage SNMP plugin.

How to reproduce

• Environment: Debian bookworm/sid`
• Version of the plugin: 20260500-1+deb12u1 (package centreon-plugin-operatingsystems-linux-snmp)
• Information about the monitored resource: Linux host (Ubuntu/Debian) monitored via SNMP v2c
• Command line:

/usr/lib/centreon/plugins/centreon_linux_snmp.pl \
  --plugin=os::linux::snmp::plugin \
  --mode=storage \
  --hostname=<HOST_IP> \
  --snmp-version=2c \
  --snmp-community=<COMMUNITY> \
  --name='/' \
  --add-access

## Expected result
The output should include access information for the storage partition, as the --add-access option does on the equivalent QNAP storage plugin:

OK: Storage '/' Usage Total: 9.75 GB Used: 5.42 GB (55.63%) Free: 4.32 GB (44.37%) - Access: Read-Write
Actual result
The --add-access option is silently ignored. No access information is appended to the output:

OK: Storage '/' Usage Total: 9.75 GB Used: 5.42 GB (55.63%) Free: 4.32 GB (44.37%)
No error is returned. The access data is simply absent, even though the OID hrStorageAccess (1.3.6.1.2.1.25.2.3.1.2) is available via SNMP on the host.

[Evan-Adam]

Hello @monsieurpouet , Thanks for reaching to us !

For this plugin, the output can be very large, so we tryied to not show non needed information by default.
However, the threshold are active once you use the add-access option, and will make the plugin go to critical if your drive is readonly. you can change the threshold with --critical-access=readWrite to confirm it goes to critical.

On another not if you want to filter on the name you should use --name --storage='/', to show only / disk.

we will create a ticket to change the behaviour to show the access status all the time, and check the perf data created.

Have a great day!