System Attributes

System attributes refer to system characteristics such as the amount of available virtual memory, idle CPU percentage, the number of non-block device reads, and load averages.


Active Virtual Memory The amount of virtual memory, in kilobytes, currently in use by the system. Valid entries are numeric values in the range 0 to 99999999.

Avg PageIns 1 The average rate of page ins over the last 1 minute. Displays N/C (not collected) if the agent has been up for less than one minute.

Avg PageIns 5 The average rate of page ins over the last 5 minutes. Displays N/C (not collected) if the agent has been up for less than one minute.

Avg PageIns 15 The average rate of page ins over the last 15 minutes. Displays N/C (not collected) if the agent has been up for less than one minute.

Avg PageIns 60 The average rate of page ins over the last 60 minutes. Displays N/C (not collected) if the agent has been up for less than one minute.

Avg PageScans 1 The average rate of page scans over the last 1 minute. Displays N/C (not collected) if the agent has been up for less than one minute.

Avg PageScans 5 The average rate of page scans over the last 5 minutes. Displays N/C (not collected) if the agent has been up for less than one minute.

Avg PageScans 15 The average rate of page scans over the last 15 minutes. Displays N/C (not collected) if the agent has been up for less than one minute.

Avg PageScans 60 The average rate of page scans over the last 60 minutes. Displays N/C (not collected) if the agent has been up for less than one minute.

Avg Proccesses RunQueue 60 The average number of processes in the run queue over the last 60 minutes. Displays N/C (not collected) if the agent has been up for less than one minute.

Avg PageOut 1 The average rate of page outs over the last 1 minute. Displays N/C (not collected) if the agent has been up for less than one minute.

Avg PageOut 5 The average rate of page outs over the last 5 minutes. Displays N/C (not collected) if the agent has been up for less than one minute.

Avg PageOut 15 The average rate of page outs over the last 15 minutes. Displays N/C (not collected) if the agent has been up for less than one minute.

Avg PageOut 60 The average rate of page outs over the last 60 minutes. Displays N/C (not collected) if the agent has been up for less than one minute.

Block Reads The number of physical block reads over a specified sampling period. Valid entry is an integer in the range 0 to 9999.

Block Writes The number of physical block writes (synchronous+ asynchronous) over a specified sampling period. Valid entry is an integer in the range 0 to 9999.

Boot Time The system boot time on the monitored system. Valid entries in the format is CYYMMDDHHMMSSmmm, where:

C

= Century (0=20th)

YY

= Year

MM

= Month of the Year (01-12)

DD

= Day of the Month (01-31)

HH

= Hour, in 24-hour time (00-23)

MM

= Minute

SS

= Second

mmm

= Millisecond

CPU Busy The sum of the System and User CPU attributes in percent. Valid entries are numeric values in the range 0 to 100.

CPU Context Switches Number of CPU context switches over the sampling interval. Valid entries are numeric values in the range 0 to 999999.

Device Interrupts The number of non-clock device interrupts over the sampling interval. Valid entries are numeric values in the range 0 to 9999.

Execs Executed The number of execs executed over a specified sampling period. Valid entry is an integer in the range 0 to 9999.

Forks Executed The number of forks executed over the sampling interval. Valid entries are numeric values in the range 0 to 9999.

Free Memory The amount of memory, in kilobytes, currently available on the system. Valid entries are numeric values in the range 0 to 9999999.

Idle CPU The percentage of time the CPU is not processing instructions. Valid entries are numeric values in the range 0 to 100.

Load Average 1 Min The average number of processes in the run queue of the UNIX kernel during the last minute. Valid entries are numeric values in the range 0 to 9999.99.

Load Average 15 Min The average number of processes in the UNIX kernel run queue during the last fifteen minutes. Valid entries are numeric values in the range 0 to 9999.99.

Load Average 5 Min The average number of processes in the UNIX kernel run queue during the last five minutes. Valid entries are numeric values in the range 0 to 9999.99.

Logical Block Reads Number of logical block reads of system buffers during the sampling interval. Valid entries are numeric values in the range 0 to 9999.

Logical Block Writes Number of logical block writes of system buffers during the sampling interval. Valid entries are numeric values in the range 0 to 9999.

Net Address The Internet Protocol (IP) address of a monitored system, expressed in dotted decimal format. Valid entry is a simple text string, alphanumeric.

NonBlock Reads Number of physical block reads (synchronous + asynchronous) during the sampling interval. Valid entry is an integer in the range 0 to 9999.

NonBlock Writes The number of raw I/O writes over a specified sampling period. Valid entry is an integer in the range 0 to 9999.

Page Faults The average rate of page faults per second. Valid entries are numeric values in the range 0 to 9999.

Page Ins The average rate per second of page-in requests over a specified sampling period. A page-in request may include multiple pages and gives an indication of the I/O rate on the paging file. Valid entry is an integer in the range 0 to 9999.

Page In Rate The number of kilobytes that the virtual memory manager pages in per second.

Page Outs The average rate per second of page-out requests over a specified sampling period. Valid entry is an integer in the range 0 to 9999.

Page Out Rate The number of kilobytes that the virtual memory manager pages out per second.

Page Reclaims The number of times during the monitoring interval that the system removed a page from the queue and used that page for another process. This is the average rate per second. Valid entries are numeric values in the range 0 to 9999.

Page Scan Rate The average rate per second of pages examined over the sampling interval. Virtual memory manager uses a clock-algorithm to implement a pseudo "least recently used (lsu), page replacement scheme. Pages are aged by examination by the clock. Valid entries are numeric values in the range 0 to 9999.

Page Scanning The number of kilobytes that the virtual memory manager pages scans per second.

Pages Paged In The average rate per second of pages that were paged-in from disk to system memory during the monitoring interval. Valid entries are numeric values in the range 0 to 9999.

Pages Paged Out The average rate per second of pages paged-out from system memory to disk during the monitoring interval. Valid entries are numeric values in the range 0 to 9999.

Processes Idle Number of processes currently in idle state. Valid entries are numeric values in the range 0 to 9999.

Processes Runnable Number of processes waiting to be run. For AIX, HP-UX, and Digital, Processes_Runnable is the number of processes waiting to be run or are currently running. Valid entries are numeric values in the range 0 to 9999.

Processes Running Number of processes currently running on a processor. Valid entries are numeric values in the range 0 to 9999.

Processes Sleeping Number of processes currently in sleep state. Valid entries are numeric values in the range 0 to 9999.

Processes Stopped Number of processes currently in the stopped state. Valid entries are numeric values in the range 0 to 9999.

Processes Zombie Number of zombie processes. Valid entries are numeric values in the range 0 to 9999.

Processes in Run Queue The total number of processes that can be run (or threads in AIX 4 1 and above and Digital UNIX) waiting for execution by the CPU. This number does not include processes waiting for I/O or some external event, or processes in a sleeping state. Valid entries are numeric values in the range 0 to 999.

Processes Waiting The number of processes (or threads in AIX 4 1 and above and Digital UNIX) waiting for page operations. Valid entries are numeric values in the range 0 to 999.

Swap Space Free Amount of swap space (in MB) available. Swap space is usually a disk partition on which page-outs are written.

System Calls Number of system calls made during the sampling interval. Valid entries are numeric values in the range 0 to 9999999.

System CPU The percentage of CPU time devoted to executing UNIX system kernel code. Valid entries are numeric values expressed as a percentage in the range 1 to 100.

System Name The host name of a monitored system. Valid entry is a simple text string, alphanumeric with a maximum length 64 characters.

System Procs Number The number of processes running on the system, including both system and user processes. Valid entries are numeric values in the range 0 to 9999.

System Read The number of read() and readv() system calls during the sampling interval. Valid entries are numeric values in the range 0 to 9999.

System Write Number of write() and writev() system calls over the sampling interval. Valid entries are numeric values in the range 0 to 9999.

Timestamp The date and time the agent collects information as set on the monitored system. The timestamp format for SCAN and STR functions is CYYMMDDHHMMSSmmm (as in 1020315064501000 for 03/15/02 06:45:01) where:

C = Century (0 for 20th, 1 for 21st)

Y = Year

M = Month

D = Day

H = Hour

M = Minute

S = Second

m = millisecond

Total Real Memory The total number of kilobytes of physical memory on a monitored system. Valid entries are numeric values in the range 0 to 9999999.

Total Virtual Memory The total amount of disk space (in kilobytes) available for paging operations on a monitored system. In Solaris systems the Total_Virtual_Memory may be varying among different collections. This is due to the swap space in Solaris system consists of swap space from the swap area (disk) and swap space in the form of physical memory. The swap space from the physical memory varies depending on the system load. Valid entries are numeric values in the range 0 to 99999999.

Type The type of UNIX operating system residing on a monitored host. For example, you may see AIX, HPUX, SunOS or OSF1 displayed on your system. The possible values are:

AIX

The IBM AIX operating system

HPUX

The Hewlett Packard HP-UX operating system

OSF1

The Digital UNIX operating system.

SunOS

Sun Microsystems Solaris I or II operating system

Up Time The number of seconds that a monitored system has been running continuously. Valid entries are numeric values in the range 0 to 2147483647.

UpTime The system up time of the monitored system. Valid entries in the format DDDdHH:MM:SS, where:

DDD

= Days

HH

= Hours

MM

= Minutes

SS

= Seconds

User CPU The percentage of processor time devoted to user processes. Valid entries are numeric values expressed as a percentage in the range 0 to 100.

Users Session Number The number of interactive user sessions running. Valid entries are numeric values in the range 0 to 9999.

Version The version number of a UNIX operating system on the network. Valid entry is a simple text string, alphanumeric with a maximum length of 16 characters.

Virtual Memory Percent Available Percent of virtual memory available calculated by the agent using the formula:

100 - Percent_Virtual_Memory_Used.

Valid entries are numeric values in the range 0 to100.0 to one decimal place.

Virtual Memory Percent Used Percent of virtual memory used calculated by the agent using the formula:

Active_Virtual_Memory / Total_Virtual_Memory * 100.

Valid entries are numeric values in the range 0 to 100.0 to one decimal place.

Wait I/O The percentage of time the CPU spends waiting for I/O operations. Valid entries are numeric values in the range 0 to 100.