6
Linux Event Tests

The Oracle Enterprise Manager Advanced Event Tests for Linux are divided into a series of classes or groupings that will enable you to find the event test you are interested in registering.

The class names and some of the events that you can register within the classes are listed as follows.

• CPU Utilization Class: includes the percentage of time the CPU was idle, in system mode, and in user mode (See Table 6-1)
• File System Class: includes available space, space allocated to existing files, and percentage of space allocated to existing files (See Table 6-2)
• I/O Class: includes read and write throughput and a number of read and write operations (See Table 6-3)
• Memory/Swap Class: includes free memory and available swap space (See Table 6-4)
• Network Class: includes packet statistics, ingoing and outgoing errors, and collisions on the network interface (See Table 6-5)
• Process Class: includes virtual size of the process, major and minor faults, and resident set size of a process (See Table 6-6)
• System Class: includes context switches, interrupts, and system page operations (See Table 6-7)

Summary of Linux Event Tests

The following tables list the Linux event tests by class. The full descriptions of the individual event tests follow the tables. The event tests are in alphabetical order.

Table 6-1 CPU Utilization Event Tests  

Event Test	Description
Idle (%)	Idle (%) is the percentage of time that the CPU was idle and the system did not have an outstanding disk I/O request. This test checks the percentage of processor time in idle mode for the CPU(s) specified by the Host CPU parameter, such as cpu_stat0, CPU0, or * (for all CPUs on the system). If the Idle (%) value is less than or equal to the threshold values specified by the threshold arguments, and the number of occurrences exceeds the value specified in the "Number of Occurrences" parameter, then a warning or critical alert is generated.
Sys (%)	Sys (%) is the percentage of time that the CPU is running in system mode (kernel). This test checks the percentage of processor time in system mode for the CPU(s) specified by the Host CPU parameter, such as cpu_stat0, CPU0, or * (for all CPUs on the system). If the Sys (%) value is greater than or equal to the threshold values specified by the threshold arguments, and the number of occurrences exceeds the value specified in the "Number of Occurrences" parameter, then a warning or critical alert is generated.
User (%)	User (%) is the portion of processor time running in user mode and user mode with low priority (nice). This test checks the percentage of processor time in user mode for the CPU(s) specified by the Host CPU parameter, such as cpu_stat0, CPU0, or * (for all CPUs on the system). If the User (%) value is greater than or equal to the threshold values specified by the threshold arguments, and the number of occurrences exceeds the value specified in the "Number of Occurrences" parameter, then a warning or critical alert is generated.

Table 6-2 File System Class Event Tests  

Event Test	Description
Available (KB)	Available is the amount of space, in kilobytes, available for the creation of new files by users who do not have superuser privileges. This test checks for available space on the disk specified by the File System Name parameter, such as /, /tmp, or * (for all disks). If the space available is less than or equal to the values specified in the threshold arguments, and the number of occurrences exceeds the value specified in the "Number of Occurrences" parameter, then a warning or critical alert is generated.
Used (KB)	Used is the amount of space (in kilobytes) allocated to existing files. This test checks for space used on the disk specified by the File System Name parameter, such as /, /tmp, or * (for all file systems). If the space used is greater than or equal to the values specified in the threshold arguments, and the number of occurrences exceeds the value specified in the "Number of Occurrences" parameter, then a warning or critical alert is generated.
Utilized (%)	Utilized is the percentage of space that is currently allocated to all files on the file system. This test checks for the percentage of space used on the disk specified by the File System Name parameter, such as /, /tmp, or * (for all disks). If the percentage of space used is greater than or equal to the values specified in the threshold arguments, and the number of occurrences exceeds the value specified in the "Number of Occurrences" parameter, then a warning or critical alert is generated.

Table 6-3 I/O Class Event Tests  

Event Test	Description
Read Throughput	Read Throughput is the number of kilobytes read from disk per second. This test checks the read throughput. If the read throughput is greater than or equal to the threshold values specified by the threshold arguments, and the number of occurrences exceeds the value specified in the "Number of Occurrences" parameter, then a warning or critical alert is generated.
Reads (#/s)	Reads is the number of disk blocks read per second. This test checks the read rate. If the read rate is greater than or equal to the threshold values specified by the threshold arguments, and the number of occurrences exceeds the value specified in the "Number of Occurrences" parameter, then a warning or critical alert is generated.
Write Throughput	Write Throughput is the number of kilobytes written to disk per second. This test checks the write throughput. If the write throughput is greater than or equal to the threshold values specified by the threshold arguments, and the number of occurrences exceeds the value specified in the "Number of Occurrences" parameter, then a warning or critical alert is generated.
Writes (#/s)	Writes is the number of disk blocks written per second. This test checks the write rate. If the write rate is greater than or equal to the threshold values specified by the threshold arguments, and the number of occurrences exceeds the value specified in the "Number of Occurrences" parameter, then a warning or critical alert is generated.

Table 6-4 MemorySwap Class Event Tests  

Event Test	Description
Available Swap (KB)	Available Swap is the amount of swap space currently available in kilobytes. This test checks the size of currently available swap space on the system. If the size in kilobytes is less than or equal to the threshold values specified by the threshold arguments, and the number of occurrences exceeds the value specified in the "Number of Occurrences" parameter, then a warning or critical alert is generated.
Free Memory (KB)	Free Memory is the size of the free list in kilobytes. This test checks the size of the free memory in kilobytes on the system. If the size is less than or equal to the threshold values specified by the threshold arguments, and the number of occurrences exceeds the value specified in the "Number of Occurrences" parameter, then a warning or critical alert is generated.

Table 6-5 Network Class Event Tests  

Event Test	Description
Collisions (#/s)	Collisions is the number of collisions per second. This test checks the rate of collisions on the network interface specified by the network device names parameter, such as le0 or * (for all network interfaces). If the rate is greater than or equal to the values specified in the threshold arguments, and the number of occurrences exceeds the value specified in the "Number of Occurrences" parameter, then a warning or critical alert is generated.
Incoming Errors (#/s)	Incoming Errors is the number of input errors, per second, encountered on the device for unsuccessful reception due to hardware/network errors. This test checks the rate of input errors on the network interface specified by the network device names parameter, such as le0 or * (for all network interfaces). If the rate is greater than or equal to the values specified in the threshold arguments, and the number of occurrences exceeds the value specified in the "Number of Occurrences" parameter, then a warning or critical alert is generated.
Incoming Packets (#/s)	Incoming Packets is the number of packets, per second, that have been received successfully by the device. This test checks the rate at which packets are received on the network interface specified by the network device names parameter, such as le0 or * (for all network interfaces). If the rate is greater than or equal to the values specified in the threshold arguments, and the number of occurrences exceeds the value specified in the "Number of Occurrences" parameter, then a warning or critical alert is generated.
Outgoing Errors (#/s)	Outgoing Errors is the number of output errors per second. This test checks the rate of output errors on the network interface specified by the network device names parameter, such as le0 or * (for all network interfaces). If the rate is greater than or equal to the values specified in the threshold arguments, and the number of occurrences exceeds the value specified in the "Number of Occurrences" parameter, then a warning or critical alert is generated.
Outgoing Packets (#/s)	Outgoing Packets is the number of packets, per second, that have been sent out by the device. This test checks the rate at which packets are sent on the network interface specified by the network device names parameter, such as le0 or * (for all network interfaces). If the rate is greater than or equal to the values specified in the threshold arguments, and the number of occurrences exceeds the value specified in the "Number of Occurrences" parameter, then a warning or critical alert is generated.

Table 6-6 Process Class Event Tests  

Event Test	Description
Percent Memory Used	Percent Memory Used is the ratio of the resident set size of a process to the physical memory on the machine, expressed as a percentage. This test checks the percent memory used by the processes specified by the process names parameter, such as vppdc or * (for all processes running on the system). If the percent memory used by one process is greater than or equal to the values specified in the threshold arguments, and the number of occurrences exceeds the value specified in the "Number of Occurrences" parameter, then a warning or critical alert is generated.
Resident Size (KB)	Resident Size is the resident set size of a process, in kilobytes. This test checks the resident size of the processes specified by the process names parameter, such as vppdc or * (for all processes running on the system). If the resident size of one process is greater than or equal to the values specified in the threshold arguments, and the number of occurrences exceeds the value specified in the "Number of Occurrences" parameter, then a warning or critical alert is generated.
System Time (%)	System Time (%) is the percentage of system level CPU time that a process used. This test checks the percentage of system time that has been used by the processes specified by the process names parameter, such as vppdc or * (for all processes running on the system). If the System Time (%) value used by any one process is greater than or equal to the values specified in the threshold arguments, and the number of occurrences exceeds the value specified in the "Number of Occurrences" parameter, then a warning or critical alert is generated.
User Time (%)	User Time (%) is the percentage of user level CPU time that a process used. This test checks the percentage of user time that has been used by the processes specified by the process names parameter, such as vppdc or * (for all processes running on the system). If the User Time (%) value used by one process is greater than or equal to the values specified in the threshold arguments, and the number of occurrences exceeds the value specified in the "Number of Occurrences" parameter, then a warning or critical alert is generated.
Virtual Size (KB)	Virtual Size is the size of a process in virtual memory, in kilobytes. This test checks the total size of the processes specified by the process names parameter, such as vppdc or * (for all processes running on the system). If the total size of any one process is greater than or equal to the values specified in the threshold arguments, and the number of occurrences exceeds the value specified in the "Number of Occurrences" parameter, then a warning or critical alert is generated.

Table 6-7 System Class Event Tests  

Event Test	Description
Context Switches (#/s)	Context Switches is the rate of switches from one thread to another. Thread switches can occur either inside a single process or across processes. A thread switch can happen when one thread requests information from another thread, or when a higher priority thread preempts another thread. This test checks the number of context switches per second. If the number of context switches is greater than or equal to the threshold values specified by the threshold arguments, and the number of occurrences exceeds the value specified in the "Number of Occurrences" parameter, then a warning or critical alert is generated.
Interrupts (#/s)	Interrupts is the number of device interruptions the processor is experiencing per second. These device interruptions can result from system devices such as the mouse, network cards, and so on. This metric also measures the activity of those devices in the overall system environment. This test checks the system interruptions rate for the CPU(s) specified by the Host CPU parameter, such as cpu_stat0 or * (for all CPUs on the system). If the System Interruptions value is greater than or equal to the threshold values specified by the threshold arguments, and the number of occurrences exceeds the value specified in the "Number of Occurrences" parameter, then a warning or critical alert is generated.
Pages Paged In (#/s)	Pages Paged In is the number of pages paged in (read from disk to resolve fault memory references) per second. This test checks the number of pages paged in for the CPU(s) specified by the Host CPU(s) parameter, such as cpu_stat0 or * (for all CPUs on the system). If the number of pages paged in is greater than or equal to the threshold values specified by the threshold arguments, and the number of occurrences exceeds the value specified in the "Number of Occurrences" parameter, then a warning or critical alert is generated.
Pages Paged Out (#/s)	Pages Paged Out is the number of pages written out (per second) by the virtual memory manager. Along with Page Outs, this statistic represents the amount of real I/O initiated by the virtual memory manager. This test checks the number of pages paged out for the CPU(s) specified by the Host CPU(s) parameter, such as cpu_stat0 or * (for all CPUs on the system). If the number of pages paged out is greater than or equal to the threshold values specified by the threshold arguments, and the number of occurrences exceeds the value specified in the "Number of Occurrences" parameter, then a warning or critical alert is generated.
Pages Swapped In (#/s)	Pages Swapped In are the total number of page ins from the disk during the interval. This includes pages paged in from paging space and from the file system. This test checks the number of page ins per second. If the number of page ins is greater than or equal to the threshold values specified by the threshold arguments, and the number of occurrences exceeds the value specified in the "Number of Occurrences" parameter, then a warning or critical alert is generated.
Pages Swapped Out (#/s)	Pages Swapped Out is the total number of page outs from the disk during the interval. This includes pages paged out to paging space and to the file system. This test checks the number of page outs per second. If the number of page outs is greater than or equal to the threshold values specified by the threshold arguments, and the number of occurrences exceeds the value specified in the "Number of Occurrences" parameter, then a warning or critical alert is generated.

Descriptions of Linux Event Tests

The Linux event tests are listed in alphabetical order.

Available (KB)

Description

Available is the amount of space, in kilobytes, available for the creation of new files by users who do not have superuser privileges.

This test checks for available space on the disk specified by the File System Name parameter, such as /, /tmp, or * (for all disks). If the space available is less than or equal to the values specified in the threshold arguments, and the number of occurrences exceeds the value specified in the "Number of Occurrences" parameter, then a warning or critical alert is generated.

Data Source

The data for this item was retrieved through system call statfs.

Parameters

• File System Name(s): Filter for file system names, such as /, /tmp, or * for all file systems on the system. Note: To access the list of available file systems, use Performance Manager or Capacity Planner and connect to the target node, then click on the class "File System".
• Warning Threshold: Threshold for warning alert, in kilobytes.
• Critical Threshold: Threshold for critical alert, in kilobytes.
• Number of Occurrences: The number of consecutive occurrences. The default is 5.

Output

The available space in kilobytes on the file system.

Recommended Frequency

5 minutes

User Action

None.

Available Swap (KB)

Description

Available Swap is the amount of swap space currently available in kilobytes.

This test checks the size of currently available swap space on the system. If the size in kilobytes is less than or equal to the threshold values specified by the threshold arguments, and the number of occurrences exceeds the value specified in the "Number of Occurrences" parameter, then a warning or critical alert is generated.

Data Source

The data for this item was retrieved from the sysinfo system call.

Parameters

• System: To access the available system instance, use Performance Manager or Capacity Planner and connect to the target node, then click on the class "Memory/Swap".
• Warning Threshold: Threshold for warning alert, in kilobytes.
• Critical Threshold: Threshold for critical alert, in kilobytes.
• Number of Occurrences: The number of consecutive occurrences. The default is 5.

Output

The size of currently available swap space in kilobytes.

Recommended Frequency

5 minutes

User Action

None.

Collisions (#/s)

Description

Collisions is the number of collisions per second.

This test checks the rate of collisions on the network interface specified by the network device names parameter, such as le0 or * (for all network interfaces). If the rate is greater than or equal to the values specified in the threshold arguments, and the number of occurrences exceeds the value specified in the "Number of Occurrences" parameter, then a warning or critical alert is generated.

Data Source

The data for this item was retrieved from the /proc/net/dev file.

Parameters

• Network Device Name(s): Filter for network device names, such as le0 or * for all network interfaces on the system. Note: To access the list of available network interfaces, use Performance Manager or Capacity Planner to connect to the target node, then click on the class "Network". If no "Network" class displays for the target node, this means the interface on the target node is not supported by the Oracle Intelligent Agent.
• Warning Threshold: Threshold for warning alert. The value must be between 0.0 and 100.0
• Critical Threshold: Threshold for critical alert. The value must be between 0.0 and 100.0
• Number of Occurrences: The number of consecutive occurrences. The default is 5.

Output

The rate of collisions on the network interface.

Recommended Frequency

5 minutes

User Action

None.

Context Switches (#/s)

Description

Context Switches/sec is the rate of switches from one thread to another. Thread switches can occur either inside a single process or across processes. A thread switch can happen when one thread requests information from another thread, or when a higher priority thread preempts another thread.

This test checks the number of context switches per second. If the number of context switches is greater than or equal to the threshold values specified by the threshold arguments, and the number of occurrences exceeds the value specified in the "Number of Occurrences" parameter, then a warning or critical alert is generated.

Data Source

The data for this item was retrieved from the /proc/stat file.

Parameters

• Warning Threshold: Threshold for warning alert.
• Critical Threshold: Threshold for critical alert.
• Number of Occurrences: The number of consecutive occurrences. The default is 5.

Output

The number of context switches per second.

Recommended Frequency

5 minutes

User Action

None.

Free Memory (KB)

Description

Free Memory is the size of the free list in kilobytes.

This test checks the size of the free memory in kilobytes on the system. If the size is less than or equal to the threshold values specified by the threshold arguments, and the number of occurrences exceeds the value specified in the "Number of Occurrences" parameter, then a warning or critical alert is generated.

Data Source

The data for this item was retrieved from the sysinfo system call.

Parameters

• System: To access the available system instance, use Performance Manager or Capacity Planner and connect to the target node, then click on the class "Memory/Swap".
• Warning Threshold: Threshold for warning alert, in kilobytes.
• Critical Threshold: Threshold for critical alert, in kilobytes.
• Number of Occurrences: The number of consecutive occurrences. The default is 5.

Output

The size of the free memory in kilobytes.

Recommended Frequency

5 minutes

User Action

None.

Idle (%)

Description

Idle (%) is the percentage of time that the CPU was idle and the system did not have an outstanding disk I/O request.

This test checks the percentage of processor time in idle mode for the CPU(s) specified by the Host CPU parameter, such as cpu_stat0, CPU0, or * (for all CPUs on the system). If the Idle (%) value is less than or equal to the threshold values specified by the threshold arguments, and the number of occurrences exceeds the value specified in the "Number of Occurrences" parameter, then a warning or critical alert is generated.

Data Source

The data for this item was retrieved from the /proc/stat file.

Parameters

• System Host CPU(s): Filter for CPUs, such as cpu_stat0, CPU0, or * for all CPUs on the system. Note: To access the list of available CPU IDs, use Performance Manager or Capacity Planner and connect to the target node, then click on the class "CPU Utilization".
• Warning Threshold: Threshold for warning alert. The value can be between 0.0 and 100.0.
• Critical Threshold: Threshold for critical alert. The value can be between 0.0 and 100.0.
• Number of Occurrences: The number of consecutive occurrences. The default is 5.

Output

The percentage of time that the CPU was idle and no outstanding disk I/O request in the last interval.

Recommended Frequency

5 minutes

User Action

None.

Incoming Errors (#/s)

Description

Incoming Errors is the number of input errors, per second, encountered on the device for unsuccessful reception due to hardware/network errors.

This test checks the rate of input errors on the network interface specified by the network device names parameter, such as le0 or * (for all network interfaces). If the rate is greater than or equal to the values specified in the threshold arguments, and the number of occurrences exceeds the value specified in the "Number of Occurrences" parameter, then a warning or critical alert is generated.

Data Source

The data for this item was retrieved from the /proc/net/dev file.

Parameters

• Network Device Name(s): Filter for network device names, such as le0 or * for all network interfaces on the system. Note: To access the list of available network interfaces, use Performance Manager or Capacity Planner to connect to the target node, then click on the class "Network". If no "Network" class displays for the target node, this means the interface on the target node is not supported by the Oracle Intelligent Agent.
• Warning Threshold: Threshold for warning alert.
• Critical Threshold: Threshold for critical alert.
• Number of Occurrences: The number of consecutive occurrences. The default is 5.

Output

The rate of input errors on the network interface.

Recommended Frequency

5 minutes

User Action

None.

Incoming Packets (#/s)

Description

Incoming Packets is the number of packets, per second, that have been received successfully by the device.

This test checks the rate at which packets are received on the network interface specified by the network device names parameter, such as le0 or * (for all network interfaces). If the rate is greater than or equal to the values specified in the threshold arguments, and the number of occurrences exceeds the value specified in the "Number of Occurrences" parameter, then a warning or critical alert is generated.

Data Source

The data for this item was retrieved from the /proc/net/dev file.

Parameters

• Network Device Name(s): Filter for network device names, such as le0 or * for all network interfaces on the system. Note: To access the list of available network interfaces, use Performance Manager or Capacity Planner to connect to the target node, then click on the class "Network". If no "Network" class displays for the target node, this means the interface on the target node is not supported by the Oracle Intelligent Agent.
• Warning Threshold: Threshold for warning alert.
• Critical Threshold: Threshold for critical alert.
• Number of Occurrences: The number of consecutive occurrences. The default is 5.

Output

The rate at which packets are received on the network interface.

Recommended Frequency

5 minutes

User Action

None.

Interrupts (#/s)

Description

Interrupts is the number of device interruptions the processor is experiencing per second. These device interruptions can result from system devices such as the mouse, network cards, and so on. This metric also measures the activity of those devices in the overall system environment.

This test checks the system interruptions rate for the CPU(s) specified by the Host CPU parameter, such as cpu_stat0 or * (for all CPUs on the system). If the Interruptions value is greater than or equal to the threshold values specified by the threshold arguments, and the number of occurrences exceeds the value specified in the "Number of Occurrences" parameter, then a warning or critical alert is generated.

Data Source

The data for this item was retrieved from the /proc/stat file.

Parameters

• System Host CPU(s): Filter for CPUs, such as cpu_stat0, CPU0, or * for all CPUs on the system. Note: To access the list of available CPU IDs, use Performance Manager or Capacity Planner and connect to the target node, then click on the class "System".
• Warning Threshold: Threshold for warning alert.
• Critical Threshold: Threshold for critical alert.
• Number of Occurrences: The number of consecutive occurrences. The default is 5.

Output

The number of device interruptions per second.

Recommended Frequency

5 minutes

User Action

None.

Outgoing Errors (#/s)

Description

Outgoing Errors is the number of output errors per second.

This test checks the rate of output errors on the network interface specified by the network device names parameter, such as le0 or * (for all network interfaces). If the rate is greater than or equal to the values specified in the threshold arguments, and the number of occurrences exceeds the value specified in the "Number of Occurrences" parameter, then a warning or critical alert is generated.

Data Source

The data for this item was retrieved from the /proc/net/dev file.

Parameters

• Network Device Name(s): Filter for network device names, such as le0 or * for all network interfaces on the system. Note: To access the list of available network interfaces, use Performance Manager or Capacity Planner to connect to the target node, then click on the class "Network". If no "Network" class displays for the target node, this means the interface on the target node is not supported by the Oracle Intelligent Agent.
• Warning Threshold: Threshold for warning alert.
• Critical Threshold: Threshold for critical alert.
• Number of Occurrences: The number of consecutive occurrences. The default is 5.

Output

The rate of output errors on the network interface.

Recommended Frequency

5 minutes

User Action

None.

Outgoing Packets (#/s)

Description

Outgoing Packets is the number of packets, per second, that have been sent out by the device.

This test checks the rate at which packets are sent on the network interface specified by the network device names parameter, such as le0 or * (for all network interfaces). If the rate is greater than or equal to the values specified in the threshold arguments, and the number of occurrences exceeds the value specified in the "Number of Occurrences" parameter, then a warning or critical alert is generated.

Data Source

The data for this item was retrieved from the /proc/net/dev file.

Parameters

• Network Device Name(s): Filter for network device names, such as le0 or * for all network interfaces on the system. Note: To access the list of available network interfaces, use Performance Manager or Capacity Planner to connect to the target node, then click on the class "Network". If no "Network" class displays for the target node, this means the interface on the target node is not supported by the Oracle Intelligent Agent.
• Warning Threshold: Threshold for warning alert.
• Critical Threshold: Threshold for critical alert.
• Number of Occurrences: The number of consecutive occurrences. The default is 5.

Output

The rate at which packets are sent on the network interface.

Recommended Frequency

5 minutes

Pages Paged In (#/s)

Description

Pages Paged In is the number of pages paged in (read from disk to resolve fault memory references) per second.

This test checks the number of pages paged in for the CPU(s) specified by the Host CPU(s) parameter, such as cpu_stat0 or * (for all CPUs on the system). If the number of pages paged in is greater than or equal to the threshold values specified by the threshold arguments, and the number of occurrences exceeds the value specified in the "Number of Occurrences" parameter, then a warning or critical alert is generated.

Data Source

The data for this item was retrieved from the /proc/stat file.

Parameters

• System Host CPU(s): Filter for CPUs, such as cpu_stat0, CPU0, or * for all CPUs on the system. Note: To access the list of available CPU IDs, use Performance Manager or Capacity Planner and connect to the target node, then click on the class "System".
• Warning Threshold: Threshold for warning alert.
• Critical Threshold: Threshold for critical alert.
• Number of Occurrences: The number of consecutive occurrences. The default is 5.

Output

The number of pages paged in per second.

Recommended Frequency

5 minutes

User Action

None.

Pages Paged Out (#/s)

Description

Pages Paged Out is the number of pages written out (per second) by the virtual memory manager. Along with Page Outs, this statistic represents the amount of real I/O initiated by the virtual memory manager.

This test checks the number of pages paged out for the CPU(s) specified by the Host CPU(s) parameter, such as cpu_stat0 or * (for all CPUs on the system). If the number of pages paged out is greater than or equal to the threshold values specified by the threshold arguments, and the number of occurrences exceeds the value specified in the "Number of Occurrences" parameter, then a warning or critical alert is generated.

Data Source

The data for this item was retrieved from the /proc/stat file.

Parameters

• System Host CPU(s): Filter for CPUs, such as cpu_stat0, CPU0, or * for all CPUs on the system. Note: To access the list of available CPU IDs, use Performance Manager or Capacity Planner and connect to the target node, then click on the class "System".
• Warning Threshold: Threshold for warning alert.
• Critical Threshold: Threshold for critical alert.
• Number of Occurrences: The number of consecutive occurrences. The default is 5.

Output

The number of pages paged out per second.

Recommended Frequency

5 minutes

User Action

None.

Pages Swapped In (#/s)

Description

Pages Swapped In are the total number of page ins from the disk during the interval. This includes pages paged in from paging space and from the file system.

This test checks the number of page ins per second. If the number of page ins is greater than or equal to the threshold values specified by the threshold arguments, and the number of occurrences exceeds the value specified in the "Number of Occurrences" parameter, then a warning or critical alert is generated.

Data Source

The data for this item was retrieved from the /proc/stat file.

Parameters

• Warning Threshold: Threshold for warning alert.
• Critical Threshold: Threshold for critical alert.
• Number of Occurrences: The number of consecutive occurrences. The default is 5.

Output

The number of page ins per second.

Recommended Frequency

5 minutes

User Action

None.

Pages Swapped Out (#/s)

Description

Pages Swapped Out is the total number of page outs from the disk during the interval. This includes pages paged out to paging space and to the file system.

This test checks the number of page outs per second. If the number of page outs is greater than or equal to the threshold values specified by the threshold arguments, and the number of occurrences exceeds the value specified in the "Number of Occurrences" parameter, then a warning or critical alert is generated.

Data Source

The data for this item was retrieved from the /proc/stat file.

Parameters

• Warning Threshold: Threshold for warning alert.
• Critical Threshold: Threshold for critical alert.
• Number of Occurrences: The number of consecutive occurrences. The default is 5.

Output

The number of page outs per second.

Recommended Frequency

5 minutes

User Action

None.

Percent Memory Used

Description

Percent Memory Used is the ratio of the resident set size of a process to the physical memory on the machine, expressed as a percentage.

This test checks the percent memory used by the processes specified by the process names parameter, such as vppdc or * (for all processes running on the system). If the percent memory used by one process is greater than or equal to the values specified in the threshold arguments, and the number of occurrences exceeds the value specified in the "Number of Occurrences" parameter, then a warning or critical alert is generated.

Data Source

The data for this item was retrieved from file /proc/<pid>.

Parameters

• Process(es): Filter for processes, such as vppdc, dbsnmp, or * for all processes on the system.
• Warning Threshold: Threshold for warning alert. The value must be between 0.0 and 100.0
• Critical Threshold: Threshold for critical alert. The value must be between 0.0 and 100.0
• Number of Occurrences: The number of consecutive occurrences. The default is 5.

Output

Process name with process ID: To identify the exact process.

Percent Memory Used: The ratio of a process's resident set size to the physical memory on the machine.

Recommended Frequency

5 minutes

User Action

None.

Read Throughput

Description

Read Throughput is the number of kilobytes read from disk per second.

This test checks the read throughput. If the read throughput is greater than or equal to the threshold values specified by the threshold arguments, and the number of occurrences exceeds the value specified in the "Number of Occurrences" parameter, then a warning or critical alert is generated.

Data Source

The data for this item was retrieved from the /proc/stat file.

Parameters

• Disk Device Name(s): Filter for disk names, such as sd0 or * for all disks on the system. Note: To access the list of available disk names, use Performance Manager or Capacity Planner and connect to the target node, then click on the class "I/O".
• Warning Threshold: Threshold for warning alert, in kilobytes.
• Critical Threshold: Threshold for critical alert, in kilobytes.
• Number of Occurrences: The number of consecutive occurrences. The default is 5.

Output

The number of kilobytes read per second.

Recommended Frequency

5 minutes

User Action

None.

Reads (#/sec)

Description

Reads is the number of disk blocks read per second.

This test checks the read rate. If the read rate is greater than or equal to the threshold values specified by the threshold arguments, and the number of occurrences exceeds the value specified in the "Number of Occurrences" parameter, then a warning or critical alert is generated.

Data Source

The data for this item was retrieved from the /proc/stat file.

Parameters

• Disk Device Name(s): Filter for disk names, such as sd0 or * for all disks on the system. Note: To access the list of available disk names, use Performance Manager or Capacity Planner and connect to the target node, then click on the class "I/O".
• Warning Threshold: Threshold for warning alert.
• Critical Threshold: Threshold for critical alert.
• Number of Occurrences: The number of consecutive occurrences. The default is 5.

Output

The number of reads per second.

Recommended Frequency

5 minutes

User Action

None.

User Action

None.

Resident Size (KB)

Description

Resident Size is the resident set size of a process, in kilobytes.

This test checks the resident size of the processes specified by the process names parameter, such as vppdc or * (for all processes running on the system). If the resident size of one process is greater than or equal to the values specified in the threshold arguments, and the number of occurrences exceeds the value specified in the "Number of Occurrences" parameter, then a warning or critical alert is generated.

Data Source

The data for this item was retrieved from file /proc/<pid>.

Parameters

• Process(es): Filter for processes, such as vppdc, dbsnmp, or * for all processes on the system.
• Warning Threshold: Threshold for warning alert, in kilobytes.
• Critical Threshold: Threshold for critical alert, in kilobytes.
• Number of Occurrences: The number of consecutive occurrences. The default is 5.

Output

• Process name with process ID: To identify the exact process.
• Resident Size: The resident set size of a process, in kilobytes.

Recommended Frequency

5 minutes

User Action

None.

Sys (%)

Description

Sys (%) is the percentage of time that the CPU is running in system mode (kernel).

This test checks the percentage of processor time in system mode for the CPU(s) specified by the Host CPU parameter, such as cpu_stat0, CPU0, or * (for all CPUs on the system). If the Sys (%) value is greater than or equal to the threshold values specified by the threshold arguments, and the number of occurrences exceeds the value specified in the "Number of Occurrences" parameter, then a warning or critical alert is generated.

Data Source

The data for this item was retrieved from the /proc/stat file.

Parameters

• System Host CPU(s): Filter for CPUs, such as cpu_stat0, CPU0, or * for all CPUs on the system. Note: To access the list of available CPU IDs, use Performance Manager or Capacity Planner and connect to the target node, then click on the class "CPU Utilization".
• Warning Threshold: Threshold for warning alert. The value can be between 0.0 and 100.0.
• Critical Threshold: Threshold for critical alert. The value can be between 0.0 and 100.0.
• Number of Occurrences: The number of consecutive occurrences. The default is 5.

Output

Percentage of time that the CPU is running in the system mode in the last interval.

Recommended Frequency

5 minutes

User Action

None.

System Time (%)

Description

System Time (%) is the percentage of system level CPU time that a process used.

This test checks the percentage of system time that has been used by the processes specified by the process names parameter, such as vppdc or * (for all processes running on the system). If the System Time (%) value used by any one process is greater than or equal to the values specified in the threshold arguments, and the number of occurrences exceeds the value specified in the "Number of Occurrences" parameter, then a warning or critical alert is generated.

Data Source

The data for this item was retrieved from file /proc/<pid>.

Parameters

• Process(es): Filter for processes, such as vppdc, dbsnmp, or * for all processes on the system.
• Warning Threshold: Threshold for warning alert. The value can be between 0.0 and 100.0.
• Critical Threshold: Threshold for critical alert. The value can be between 0.0 and 100.0.
• Number of Occurrences: The number of consecutive occurrences. The default is 5.

Output

• Process name with process ID: To identify the exact process.
• System Time: The percentage of system level CPU time that a process used.

Recommended Frequency

5 minutes

User Action

None.

Used (KB)

Description

Used is the amount of space (in kilobytes) allocated to existing files.

This test checks for space used on the disk specified by the File System Name parameter, such as /, /tmp, or * (for all file systems). If the space used is greater than or equal to the values specified in the threshold arguments, and the number of occurrences exceeds the value specified in the "Number of Occurrences" parameter, then a warning or critical alert is generated.

Data Source

The data for this item was retrieved through system call statfs.

Parameters

• File System Name(s): Filter for file system names, such as /, /tmp, or * for all file systems on the system. Note: To access the list of available file systems, use Performance Manager or Capacity Planner and connect to the target node, then click on the class "File System".
• Warning Threshold: Threshold for warning alert, in kilobytes.
• Critical Threshold: Threshold for critical alert, in kilobytes.
• Number of Occurrences: The number of consecutive occurrences. The default is 5.

Output

The used space in kilobytes on the file system.

Recommended Frequency

5 minutes

User Action

None.

User (%)

Description

User (%) is the portion of processor time running in user mode and user mode with low priority (nice).

This test checks the percentage of processor time in user mode for the CPU(s) specified by the Host CPU parameter, such as cpu_stat0, CPU0, or * (for all CPUs on the system). If the User (%) value is greater than or equal to the threshold values specified by the threshold arguments, and the number of occurrences exceeds the value specified in the "Number of Occurrences" parameter, then a warning or critical alert is generated.

Data Source

The data for this item was retrieved from the /proc/stat file.

Parameters

• System Host CPU(s): Filter for CPUs, such as cpu_stat0, CPU0, or * for all CPUs on the system. Note: To access the list of available CPU IDs, use Performance Manager or Capacity Planner and connect to the target node, then click on the class "CPU Utilization".
• Warning Threshold: Threshold for warning alert. The value can be between 0.0 and 100.0.
• Critical Threshold: Threshold for critical alert. The value can be between 0.0 and 100.0.
• Number of Occurrences: The number of consecutive occurrences. The default is 5.

Output

Percentage of time that the CPU is running in the user mode in the last interval.

Recommended Frequency

5 minutes

User Action

None.

User Time (%)

Description

User Time (%) is the percentage of user level CPU time that a process used.

This test checks the percentage of user time that has been used by the processes specified by the process names parameter, such as vppdc or * (for all processes running on the system). If the User Time (%) value used by one process is greater than or equal to the values specified in the threshold arguments, and the number of occurrences exceeds the value specified in the "Number of Occurrences" parameter, then a warning or critical alert is generated.

Data Source

The data for this item was retrieved from file /proc/<pid>.

Parameters

• Process(es): Filter for processes, such as vppdc, dbsnmp, or * for all processes on the system.
• Warning Threshold: Threshold for warning alert. The value can be between 0.0 and 100.0
• Critical Threshold: Threshold for critical alert. The value can be between 0.0 and 100.0
• Number of Occurrences: The number of consecutive occurrences. The default is 5.

Output

• Process name with process ID: To identify the exact process.
• User Time: The percentage of user level CPU time that a process used.

Recommended Frequency

5 minutes

User Action

None.

Utilized (%)

Description

Utilized is the percentage of space that is currently allocated to all files on the file system.

This test checks for the percentage of space used on the disk specified by the File System Name parameter, such as /, /tmp, or * (for all disks). If the percentage of space used is greater than or equal to the values specified in the threshold arguments, and the number of occurrences exceeds the value specified in the "Number of Occurrences" parameter, then a warning or critical alert is generated.

Data Source

The data for this item was retrieved through system call statfs.

Parameters

• File System Name(s): Filter for file system names, such as /, /tmp, or * for all file systems on the system. Note: To access the list of available file systems, use Performance Manager or Capacity Planner and connect to the target node, then click on the class "File System".
• Warning Threshold: Threshold for warning alert. The value must be between 0.0 and 100.0.
• Critical Threshold: Threshold for critical alert. The value must be between 0.0 and 100.0.
• Number of Occurrences: The number of consecutive occurrences. The default is 5.

Output

The percentage of space used on the file system.

Recommended Frequency

5 minutes

User Action

None.

Virtual Size (KB)

Description

Virtual Size is the size of a process in virtual memory, in kilobytes.

This test checks the total size of the processes specified by the process names parameter, such as vppdc or * (for all processes running on the system). If the total size of any one process is greater than or equal to the values specified in the threshold arguments, and the number of occurrences exceeds the value specified in the "Number of Occurrences" parameter, then a warning or critical alert is generated.

Data Source

The data for this item was retrieved from file /proc/<pid>.

Parameters

• Process(es): Filter for processes, such as vppdc, dbsnmp, or * for all processes on the system.
• Warning Threshold: Threshold for warning alert, in kilobytes.
• Critical Threshold: Threshold for critical alert, in kilobytes.
• Number of Occurrences: The number of consecutive occurrences. The default is 5.

Output

• Process name with process ID: To identify the exact process.
• Virtual Size: the total size of a process in virtual memory, in kilobytes.

Recommended Frequency

5 minutes

User Action

None.

Write Throughput

Description

Write Throughput is the number of kilobytes written to disk per second.

This test checks the write throughput. If the write throughput is greater than or equal to the threshold values specified by the threshold arguments, and the number of occurrences exceeds the value specified in the "Number of Occurrences" parameter, then a warning or critical alert is generated.

Data Source

The data for this item was retrieved from the /proc/stat file.

Parameters

• Disk Device Name(s): Filter for disk names, such as sd0 or * for all disks on the system. Note: To access the list of available disk names, use Performance Manager or Capacity Planner and connect to the target node, then click on the class "I/O".
• Warning Threshold: Threshold for warning alert, in kilobytes.
• Critical Threshold: Threshold for critical alert, in kilobytes.
• Number of Occurrences: The number of consecutive occurrences. The default is 5.

Output

The number of kilobytes written per second.

Recommended Frequency

5 minutes

User Action

None.

Writes (#/sec)

Description

Writes is the number of disk blocks written per second.

This test checks the write rate. If the write rate is greater than or equal to the threshold values specified by the threshold arguments, and the number of occurrences exceeds the value specified in the "Number of Occurrences" parameter, then a warning or critical alert is generated.

Data Source

The data for this item was retrieved from the /proc/stat file.

Parameters

• Disk Device Name(s): Filter for disk names, such as sd0 or * for all disks on the system. Note: To access the list of available disk names, use Performance Manager or Capacity Planner and connect to the target node, then click on the class "I/O".
• Warning Threshold: Threshold for warning alert.
• Critical Threshold: Threshold for critical alert.
• Number of Occurrences: The number of consecutive occurrences. The default is 5.

Output

The number of writes per second.

Recommended Frequency

5 minutes

User Action

None.