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218 Appendix C. Probes
Field Value
Critical Minimum Space Available
Table C-17. Linux::Disk Usage settings
C.5.4. Linux::Inodes
The Linux::Inodes probe monitors the specified file system and collects the following met-
ric:
•
Inodes — The percentage of inodes currently in use.
An inode is a data structure that holds information about files in a Linux file system. There
is an inode for each file, and a file is uniquely identified by the file system on which it
resides and its inode number on that system.
Requirements — The Red Hat Network Monitoring Daemon (
rhnmd
) must be running on
the monitored system to execute this probe.
Field Value
File system* /
Timeout* 15
Critical Maximum Inodes Percent Used
Warning Maximum Inodes Percent Used
Table C-18. Linux::Inodes settings
C.5.5. Linux::Interface Traffic
The Linux::Interface Traffic probe measures the amount of traffic into and out of the spec-
ified interface (such as eth0) and collects the following metrics:
•
Input Rate — The traffic in bytes per second going into the specified interface.
•
Output Rate — The traffic in bytes per second going out of the specified interface.
Requirements — The Red Hat Network Monitoring Daemon (
rhnmd
) must be running on
the monitored system to execute this probe.