Using the Event Monitoring Service (November 1999)

Chapter 8 79
Monitoring System Resources
System Monitor Reference
Filesystem Available Space
The filesystem monitor checks the number of megabytes available for use
in each file system on the node. File systems must be mounted and active
to be monitored. File systems mounted over the network, such as NFS
file systems, are not monitored.
The MIB variables fileSystemBavail, and fileSystemBsize from the
hp-unix MIB are used to calculate the number of available Kb in the file
systems. The number is then divided by 1024 to get the number of
available Mb.
You may have more file systems, or different names, depending on how
you configured file systems on your system. You see that when a file
system starts filling up, you can clean up old files or add disk space and
reconfigure your file systems.
NOTE Because the “/” character is not valid in a resource name, it is replaced by
the “_” character. So the file system /tmp/users would appear as the
resource name /system/filesystem/availMb/tmp_users. For the same
reason the root file system (/) is replaced by the name “root”.
The minimum polling interval is 30 seconds. We recommend a longer
interval; short polling intervals may adversely affect system
performance. When configuring requests through EMS, a wildcard (*) is
available to monitor all file systems on a system.
Table 8-4 Filesystem Available Space
Resource Name
Most common names are:
/system/filesystem/availMb/stand
/system/filesystem/availMb/root
/system/filesystem/availMb/home
/system/filesystem/availMb/opt
/system/filesystem/availMb/tmp_users
/system/filesystem/availMb/usr
/system/filesystem/availMb/var