User's Manual

152 Appendix C. Probes
Requirements — The Red Hat Network Monitoring Daemon (rhnmd) must be running on the moni-
tored system to execute this probe.
Field Value
File system* /dev/hda1
Timeout* 15
Critical Maximum File System Percent Used
Warning Maximum File System Percent Used
Critical Maximum Space Used
Warning Maximum Space Used
Warning Minimum Space Available
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 metric:
• Inodes — The percentage of inodes currently in use.
An inode is a data structure holding 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 moni-
tored 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 specified 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 moni-
tored system to execute this probe.