Operating System KBs

This page was last modified 06:00, 21 July 2006.

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Overview

The primary aim of the operating system knowledge bases in Sentinel3G is to provide a base level of operations monitoring that is consistent across various UNIX/Linux platforms. Due to differences between the various operating systems we monitor, complete consistency is not always achievable. This document describes the general content of the OS knowledge bases, and the discrepancies between them on different platforms.

 |HPUX parisc     ||align="center" |2.1 ||11th May, 2004 ||align="center" |4.4
 |-
-|HPUX intel      ||align="center" |2.2 || 6th Jul, 2006 ||align="center" |4.4
+|HPUX intel      ||align="center" |2.2 || 6th Jul, 2006 ||align="center" |4.4.3
 |-
-|Linux intel     ||align="center" |2.1 ||12th Mar, 2004 ||align="center" |4.4
+|Linux intel     ||align="center" |2.1 ||20th Apr, 2004 ||align="center" |4.4.3
 |-
 |Solaris intel   ||align="center" |2.1 ||14th Jan, 2003 ||align="center" |4.4
 |-
-|Solaris sparc   ||align="center" |2.2 ||14th Feb, 2006 ||align="center" |4.4
+|Solaris sparc   ||align="center" |2.2 ||10th Apr, 2006 ||align="center" |4.4.3
 |-
 |Tru64 alpha     ||align="center" |2.1 || 2nd Jun, 2004 ||align="center" |4.4
 |Unixware intel  ||align="center" |1.0 ||10th Mar, 2004 ||align="center" |4.2
 |-
-|Windows intel   ||align="center" |2.2 ||14th Feb, 2006 ||align="center" |4.4
+|Windows intel   ||align="center" |2.2 ||28th Apr, 2006 ||align="center" |4.4.3
 |}
 |align="center" | &radic;
 |align="center" | &radic;
-|
+|&nbsp;
 |align="center" | &radic;
 |align="center" | &radic;
 |align="center" | &radic;
 |align="center" | &radic;
-|
+|&nbsp;
-|
+|&nbsp;
 |align="center" | &radic;
 |align="center" | &radic;
 |align="center" | &radic;
 |align="center" | &radic;
-|
+|&nbsp;
 |align="center" | &radic;
-|
+|&nbsp;
-|
+|&nbsp;
 |-
 |System_Calls
 |align="center" | &radic;
 |align="center" | &radic;
-|
+|&nbsp;
 |align="center" | &radic;
-|
+|&nbsp;
 |align="center" | &radic;
 |align="center" | &radic;
 |-
 |HPUX
-|
+|&nbsp;
-|
+|&nbsp;
 |}
 |Error_Log
 |align="center" | &radic;
-|
+|&nbsp;
-|
+|&nbsp;
-|
+|&nbsp;
-|
+|&nbsp;
-|
+|&nbsp;
-|
+|&nbsp;
 |}
 <br>
-==== Filesystem Class ====
+==== Event Log Class ====
 {| border="1" cellpadding="6" cellspacing="0"
 !width="65" | Windows
 |-
-|Filesystem
+|EventLog
-|align="center" | &radic;&sup1;
+|&nbsp;
-|align="center" | &radic;
+|&nbsp;
-|align="center" | &radic;
+|&nbsp;
-|align="center" | &radic;
+|&nbsp;
-|align="center" | &radic;
+|&nbsp;
-|align="center" | &radic;
+|&nbsp;
 |align="center" | &radic;
 |}
-&sup1; AIX provides two sentries for free space monitoring, one sentry specifically for /usr (with less sensitive thresholds) and another for the other filesystems.
 <br>
-==== Memory Class ====
+==== Files Class ====
 {| border="1" cellpadding="6" cellspacing="0"
 !width="65" | Windows
 |-
-|Paging_Rate
+|File_Info
+|&nbsp;
+|&nbsp;
+|&nbsp;
+|&nbsp;
+|&nbsp;
+|&nbsp;
 |align="center" | &radic;
-|align="center" | &radic;
+|}
-|align="center" | &radic;
-|align="center" | &radic;
+<br>
-|align="center" | &radic;
-|align="center" | &radic;
+==== Filesystem Class ====
-|
+{| border="1" cellpadding="6" cellspacing="0"
+!width="125" | Sentry
+!width="65" | AIX
+!width="65" | HPUX
+!width="65" | Linux
+!width="65" | SCO
+!width="65" | Solaris
+!width="65" | Tru64
+!width="65" | Windows
 |-
-|Physical_Memory
+|Filesystem
-|
+|align="center" | &radic;&sup1;
-|
-|align="center" | &radic;
-|
-|align="center" | &radic;
-|
-|align="center" | &radic;
-|-
-|Swap_Rate
-|
-|align="center" | &radic;
-|align="center" | &radic;
-|
-|align="center" | &radic;
-|
-|
-|-
-|Swap_Space
-|align="center" | &radic;
 |align="center" | &radic;
 |align="center" | &radic;
 |}
-;NOTE:Certain operating systems do not provide all the memory statistics, as it may not be relevant (eg Swap_Rate on Tru64 and AIX).
+&sup1; AIX provides two sentries for free space monitoring, one sentry specifically for /usr (with less sensitive thresholds) and another for the other filesystems.
 <br>
-==== Network Class ====
+==== Memory Class ====
 {| border="1" cellpadding="6" cellspacing="0"
 !width="65" | Windows
 |-
-|Collisions
+|Paging_File_Space
+|&nbsp;
+|&nbsp;
+|&nbsp;
+|&nbsp;
+|&nbsp;
+|&nbsp;
 |align="center" | &radic;
-|
+|-
+|Paging_Rate
 |align="center" | &radic;
 |align="center" | &radic;
 |align="center" | &radic;
 |align="center" | &radic;
-|
-|-
-|Drops
 |align="center" | &radic;
-|
-|align="center" | &radic;
-|
-|
-|
 |align="center" | &radic;
+|&nbsp;
 |-
-|Errors
+|Physical_Memory
-|align="center" | &radic;
+|&nbsp;
-|
-|
 |align="center" | &radic;
 |align="center" | &radic;
+|&nbsp;
 |align="center" | &radic;
+|&nbsp;
 |align="center" | &radic;
 |-
-|Packets_Received
+|Swap_Rate
+|&nbsp;
 |align="center" | &radic;
 |align="center" | &radic;
-|align="center" | &radic;&sup1;
+|&nbsp;
 |align="center" | &radic;
-|align="center" | &radic;&sup1;
+|&nbsp;
+|&nbsp;
+|-
+|Swap_Space
 |align="center" | &radic;
 |align="center" | &radic;
-|-
-|Packets_Sent
-|align="center" | &radic;&sup1;
 |align="center" | &radic;
 |align="center" | &radic;
 |align="center" | &radic;
-|align="center" | &radic;&sup1;
 |align="center" | &radic;
+|&nbsp;
+|-
+|Virtual_Memory
+|&nbsp;
+|&nbsp;
+|&nbsp;
+|&nbsp;
+|&nbsp;
+|&nbsp;
 |align="center" | &radic;
 |}
-&sup1; Packets sent and received are known only as sent and received on Solaris and Linux.
+;NOTE:Certain operating systems do not provide all the memory statistics, as it may not be relevant (eg Swap_Rate on Tru64 and AIX).
 <br>
 |-
 |Printers
-|
+|&nbsp;
-|
+|&nbsp;
-|align="center" | &radic;
+|&nbsp;
-|
+|&nbsp;
-|align="center" | &radic;&sup1;
+|&nbsp;
-|
+|&nbsp;
 |align="center" | &radic;
 |}
-&sup1; The Solaris Printer class is "off" by default. This is due to an intermittent issue with the printer agent.  The symptoms are excessive cpu usage by the Eventmanager. This only occurs on a very small number of systems.
 <br>
-==== Processes Class ====
+==== Network Class ====
 {| border="1" cellpadding="6" cellspacing="0"
 !width="65" | Windows
 |-
-|CPU_Usage
+|Network
 |align="center" | &radic;
 |align="center" | &radic;
 |align="center" | &radic;
 |align="center" | &radic;
-|-
-|MEM_Usage
-|align="center" | &radic;
-|align="center" | &radic;
-|align="center" | &radic;
-|align="center" | &radic;
-|align="center" | &radic;
-|align="center" | &radic;
-|
-|-
-|Processes&sup1;
-|align="center" | &radic;
-|align="center" | &radic;
-|align="center" | &radic;
-|align="center" | &radic;
-|align="center" | &radic;
-|align="center" | &radic;
-|
 |}
-;NOTE:All OS Knowledge Bases support the Process Management Console, provided as an action against Processes sentry class.
-&sup1; On certain OSes the Processes sentry is turned off by default. Certain instances are provided as examples (nmdb, smdb) only, but should be changed to reflect the system on which the KB is installed. Note also that system services (daemons) are normally monitored via the Services sentry, so check in the Services folder before adding processes to be monitored.
 <br>
-==== Security Class ====
+==== Processes Class ====
 {| border="1" cellpadding="6" cellspacing="0"
 !width="65" | Windows
 |-
-|Bad_SU
+|Process
-|
+|align="center" | &sup1;
-|align="center" | &radic;&sup1;
+|align="center" | &sup1;
-|
+|align="center" | &sup1;
-|
+|align="center" | &sup1;
-|
+|align="center" | &sup1;
-|
+|align="center" | &sup1;
-|
+|align="center" | &radic;
 |}
+&sup1; Use the Process Knowledge Base instead.
-&sup1; On Linux, the Bad_SU sentry is not started by default, as it needs specific configuration to work correctly. Please read the sentry notes for more information on how to configure this sentry.
 <br>
 <br>
 == Sentry Details ==
 |CPU_States        ||CPU        ||Performance ||60s  ||AIX only                 ||align="center" | &radic;
 |-
-|Context_Switches  ||CPU        ||Performance ||60s  ||                         ||align="center" | &radic;
+|Context_Switches  ||CPU        ||Performance ||60s  ||&nbsp;                   ||align="center" | &radic;
 |-
-|Interrupts        ||CPU        ||Performance ||60s  ||                         ||align="center" | &radic;
+|Interrupts        ||CPU        ||Performance ||60s  ||&nbsp;                   ||align="center" | &radic;
 |-
 |Run_Queue         ||CPU        ||Performance ||60s  ||align="center" | &radic; ||align="center" | &radic;
 |-
-|Processors        ||CPU/Processors ||MultiProcessor ||60s ||                   ||
+|Processors        ||CPU/Processors ||MultiProcessor ||60s ||&nbsp;             ||&nbsp;
 |-
-|System_Calls      ||CPU        ||Performance ||60s  ||align="center" | &radic; ||
+|System_Calls      ||CPU        ||Performance ||60s  ||&nbsp;                   ||align="center" | &radic;
 |-
 |Disk              ||Disk       ||Disk        ||120s ||align="center" | &radic; ||align="center" | &radic;
 |-
-|Error_Log         ||Error_Log  ||ErrorLog    ||120s ||align="center" | &radic; ||
+|Error_Log         ||Error_Log  ||ErrorLog    ||120s ||align="center" | &radic; ||&nbsp;
+|-
+|EventLog          ||EventLog   ||EventLog    ||90s  ||align="center" | &radic; ||&nbsp;
+|-
+|File_Info         ||Files      ||FileInfo    ||60s  ||align="center" | &radic; ||&nbsp;
 |-
 |Filesystem        ||Filesystem ||Filesystem  ||300s ||align="center" | &radic; ||align="center" | &radic;
+|-
+|Paging_File_Space ||Memory     ||PageSpace   ||180s ||align="center" | &radic; ||align="center" | &radic;
 |-
 |Paging_Rate       ||Memory     ||Performance ||60s  ||AIX only                 ||align="center" | &radic;
 |-
-|Physical_Memory   ||Memory     ||Performance ||60s  ||Solaris only             ||
+|Physical_Memory   ||Memory     ||Performance ||60s  ||Solaris only             ||align="center" | &radic;
 |-
-|Swap_Rate         ||Memory     ||Performance ||60s  ||                         ||
+|Swap_Rate         ||Memory     ||Performance ||60s  ||&nbsp;                   ||align="center" | &radic;
 |-
 |Swap_Space (Linux)||Memory     ||Performance ||60s  ||align="center" | &radic; ||align="center" | &radic;
 |-
-|Swap_Space (non-Linux)||Memory ||Swap        ||180s ||align="center" | &radic; ||align="center" | &radic;
+|Swap_Space (Unix) ||Memory     ||Swap        ||180s ||align="center" | &radic; ||align="center" | &radic;
+|-
+|Virtual_Memory    ||Memory     ||MemoryInfo  ||60s  ||&nbsp;                   ||align="center" | &radic;
 |-
 |Network           ||Network    ||Network     ||120s ||align="center" | &radic; ||align="center" | &radic;
 |-
-|Printers          ||Printers   ||Printer     ||180s ||Solaris only             ||
+|Printers          ||Printers   ||Printers    ||180s ||align="center" | &radic; ||&nbsp;
 |-
-|CPU_Usage         ||Processes  ||ProcessInfo ||75s  ||align="center" | &radic; ||align="center" | &radic;
+|Process           ||Processes  ||ProcessInfo ||75s  ||align="center" | &radic; ||align="center" | &radic;
 |-
-|MEM_Usage         ||Processes  ||ProcessInfo ||75s  ||align="center" | &radic; ||align="center" | &radic;
+|Services          ||Services   ||Service     ||120s ||align="center" | &radic; ||&nbsp;
 |-
-|Processes         ||Processes  ||ProcessInfo ||75s  ||align="center" | &radic; ||
+|CPU_Information   ||System     ||Information ||n/a&sup3; ||&nbsp;              ||&nbsp;
 |-
-|Bad_SU            ||Security   ||BadSU       ||n/a&sup2; ||align="center" | &radic; ||
+|Memory_Information||System     ||Information ||n/a&sup3; ||&nbsp;              ||&nbsp;
 |-
-|Services          ||Services   ||Service     ||120s ||align="center" | &radic; ||
+|Operating_System  ||System     ||Information ||n/a&sup3; ||&nbsp;              ||&nbsp;
 |-
-|CPU_Information   ||System     ||Information ||n/a&sup3; ||                    ||
+|System_Uptime     ||System     ||Uptime      ||100s ||&nbsp;                   ||&nbsp;
 |}
 &sup1; Packets sent and received are known only as sent and received on Solaris and Linux.<br>
 &sup2; The BadSU agent is a LogFile agent, and so does not have a poll time. Any new data is interpreted whenever the logfile being monitored changes.<br>
-&sup3; The Information agent is essentially run only once.
+&sup3; The Information agent (Hardware agent on Linux) is essentially run only once.
 <br>
 |NOT_BUSY
 |normal
-|
+|&nbsp;
-|
+|&nbsp;
 |}
 |Busy      ||normal  ||$run_queue > $RUNQ_WARN ||warning after 210s
 |-
-|OK        ||normal  ||                        ||
+|OK        ||normal  ||&nbsp;                  ||&nbsp;
 |}
 |NORMAL
 |normal
-|
+|&nbsp;
-|
+|&nbsp;
 |}
 ==== System Calls Sentry ====
-;Availability: AIX, HPUX, SCO, Tru64, Windows
+;Availability: AIX, SCO, Tru64
-'''Constants'''
+'''Constants (AIX, SCO, Tru64)'''
 {| border="1" cellpadding="6" cellspacing="0"
 !width="65"  bgcolor="#cccccc" | Value
 |-
-|CPU_SYSCALLS
+|CPU_SYSCALLS ||Too many system calls per second ||10000
-|Too many system calls per second
-|10000
 |}
-'''States'''
+'''States (AIX, SCO, Tru64)'''
 {| border="1" cellpadding="6" cellspacing="0"
 !width="120" bgcolor="#cccccc" | Escalation
 |-
-|BUSY
+|BUSY   ||normal ||$sys_per_sec > $CPU_SYSCALLS ||alarm after 120s
-|normal
-|$sys_per_sec > $CPU_SYSCALLS
-|alarm after 120s
 |-
-|NORMAL
+|NORMAL ||normal ||&nbsp;                       ||&nbsp;
-|normal
-|
-|
 |}
 ;Availability: AIX&sup1;, HPUX, Linux, SCO, Solaris, Tru64, Windows
-'''Constants (Linux, Solaris, Tru64)'''
+'''Constants (HPUX, Linux, Solaris, Tru64)'''
 {| border="1" cellpadding="6" cellspacing="0"
 |Indicates a very long service time (ms)
 |50
-|}
-'''States (Linux, Solaris, Tru64)'''
-{| border="1" cellpadding="6" cellspacing="0"
-!width="125" bgcolor="#cccccc" | State
-!width="65"  bgcolor="#cccccc" | Severity
-!width="390" bgcolor="#cccccc" | Condition
-!width="120" bgcolor="#cccccc" | Escalation
-|-
-|Very_Busy ||warning  ||$percent_busy >= $DSK_BUSY_PROB && $service_time >= $DSK_SVCT_PROB ||alarm after 390s
-|-
-|Busy      ||normal   ||$percent_busy >= $DSK_BUSY_WARN && $service_time >= $DSK_SVCT_WARN ||warning after 390s
-|-
-|OK        ||normal   ||  ||
-|-
-|Delete    ||built-in ||No data state ||
 |}
 |% busy indicating disk is very busy
 |60
+|}
+'''States (HPUX, Linux, Solaris, Tru64)'''
+{| border="1" cellpadding="6" cellspacing="0"
+!width="125" bgcolor="#cccccc" | State
+!width="65"  bgcolor="#cccccc" | Severity
+!width="390" bgcolor="#cccccc" | Condition
+!width="120" bgcolor="#cccccc" | Escalation
+|-
+|Very_Busy ||warning  ||$percent_busy >= $DSK_BUSY_PROB && $service_time >= $DSK_SVCT_PROB ||alarm after 390s
+|-
+|Busy      ||normal   ||$percent_busy >= $DSK_BUSY_WARN && $service_time >= $DSK_SVCT_WARN ||warning after 390s
+|-
+|OK        ||normal   ||&nbsp;        ||&nbsp;
+|-
+|Delete    ||built-in ||No data state ||&nbsp;
 |}
 |DSK_NORMAL
 |normal
-|
+|&nbsp;
-|
+|&nbsp;
 |}
 &sup1; Unfortunately the service time statistic is not available on AIX. The service time is a better indicator of disk IO performance. Even if a disk is 100% busy, there is no real problem unless the service time for the disk is also getting high.
+'''States (Windows only)'''
+{| border="1" cellpadding="6" cellspacing="0"
+!width="125" bgcolor="#cccccc" | State
+!width="65"  bgcolor="#cccccc" | Severity
+!width="390" bgcolor="#cccccc" | Condition
+!width="120" bgcolor="#cccccc" | Escalation
+|-
+|Very_Busy ||warning  ||$percent_busy >= $DSK_BUSY_PROB ||alarm after 390s
+|-
+|Busy      ||normal   ||$percent_busy >= $DSK_BUSY_WARN ||warning after 390s
+|-
+|OK        ||normal   ||&nbsp;  ||&nbsp;
+|}
 <br>
 <br>
+==== EventLog Sentry ====
+;Availability: Windows only
+'''States (Windows only)'''
+{| border="1" cellpadding="6" cellspacing="0"
+!width="125" bgcolor="#cccccc" | State
+!width="65"  bgcolor="#cccccc" | Severity
+!width="390" bgcolor="#cccccc" | Condition
+!width="120" bgcolor="#cccccc" | Escalation
+|-
+|Error       ||severe  ||$type == “error” &#124;&#124; $type == “audit failure” ||delete after acknowledgement
+|-
+|Warning     ||warning ||$type == “temporary” ||delete after acknowledgement
+|-
+|Information ||info    ||$type == “information” &#124;&#124; $type == “audit success” ||delete after acknowledgement
+|-
+|Unknown     ||alarm   ||&nbsp;               ||delete after acknowledgement
+|}
+<br>
+==== FileInfo Sentry ====
+;Availability: Windows only
+'''States (Windows only)'''
+{| border="1" cellpadding="6" cellspacing="0"
+!width="125" bgcolor="#cccccc" | State
+!width="65"  bgcolor="#cccccc" | Severity
+!width="390" bgcolor="#cccccc" | Condition
+!width="120" bgcolor="#cccccc" | Escalation
+|-
+|Nonexistent ||alarm   ||$exists == 0                  ||&nbsp;
+|-
+|No_Access   ||warning ||$owner == “CAN'T ACCESS FILE” ||&nbsp;
+|-
+|Dir_Exists  ||normal  ||$type == “directory”          ||&nbsp;
+|-
+|File_Exists ||normal  ||&nbsp;                        ||&nbsp;
+|}
+<br>
 ==== Filesystem Sentry ====
 |}
-'''States  (Linux, Solaris, Tru64)'''
+'''States  (HPUX, Linux, Solaris, Tru64, Windows)'''
 {| border="1" cellpadding="6" cellspacing="0"
 !width="120" bgcolor="#cccccc" | Escalation
 |-
-|Full        ||critical ||$pct_free == $FS_FULL       ||
+|Full        ||critical ||$pct_free == $FS_FULL       ||&nbsp;
 |-
 |Nearly_Full ||alarm    ||$pct_free < $FS_NEARLY_FULL ||severe after 930s
 |Low         ||normal   ||$pct_free < $FS_LOW         ||warning after 930s
 |-
-|OK          ||normal   ||              ||
+|OK          ||normal   ||&nbsp;        ||&nbsp;
 |-
-|Delete      ||built-in ||No data state ||
+|Delete      ||built-in ||No data state ||&nbsp;
 |}
 |critical
 |$pct_free == $FS_FULL
-|
+|&nbsp;
 |-
 |NO_INODES
 |critical
 |$pct_free_inodes == $FS_FULL
-|
+|&nbsp;
 |-
 |NEARLY_FULL
 |severe
 |$pct_free < $FS_NEARLY_FULL
-|
+|&nbsp;
 |-
 |FEW_INODES
 |severe
 |$pct_free_inodes < $FS_NEARLY_FULL
-|
+|&nbsp;
 |-
 |VERY_LOW
 |alarm
 |$pct_free < $FS_VERY_LOW
-|
+|&nbsp;
 |-
 |VLOW_INODES
 |alarm
 |$pct_free_inodes < $FS_VERY_LOW
-|
+|&nbsp;
 |-
 |LOW
 |warning
 |$pct_free < $FS_LOW
-|
+|&nbsp;
 |-
 |LOW_INODES
 |warning
 |$pct_free_inodes < $FS_LOW
-|
+|&nbsp;
 |-
 |SUFFICIENT
 |normal
-|
+|&nbsp;
-|
+|&nbsp;
 |}
 <br>
-==== Paging Rate Sentry ====
+==== Paging File Space Sentry ====
-;Availability: AIX, HPUX, Linux, SCO, Solaris, Tru64
+;Availability: Windows only
-'''Constants (AIX only)'''
+'''Constants'''
 {| border="1" cellpadding="6" cellspacing="0"
 !width="65"  bgcolor="#cccccc" | Value
 |-
-|OVER_PAGING
+|SWAP_LOW      ||Low percent free swap space      ||15
-|Too many page ins or outs per second
+|-
-|10
+|SWAP_VERY_LOW ||Very low percent free swap space ||8
 |}
-'''States (AIX only)'''
+'''States'''
 {| border="1" cellpadding="6" cellspacing="0"
 !width="120" bgcolor="#cccccc" | Escalation
 |-
-|BUSY
+|Very_Low ||warning ||$pct_avail_page <= $SWAP_VERY_LOW ||alarm after 570s
-|normal
-|$pgins_per_sec >= $OVER_PAGING &#124;&#124; $pgouts_per_sec >= $OVER_PAGING
-|alarm after 62s
 |-
-|ACCEPTABLE
+|Low      ||normal  ||$pct_avail_page <= $SWAP_LOW      ||warning after 570s
-|normal
+|-
-|
+|OK       ||normal  ||&nbsp;                            ||&nbsp;
-|
 |}
 <br>
-==== Physical Memory Sentry ====
+==== Paging Rate Sentry ====
-;Availability: Linux, Solaris, Windows
+;Availability: AIX, HPUX, Linux, SCO, Solaris, Tru64, Windows
-'''Constants'''
+'''Constants (AIX only)'''
 {| border="1" cellpadding="6" cellspacing="0"
 !width="65"  bgcolor="#cccccc" | Value
 |-
-|RESTIME_LONG
+|OVER_PAGING
-|Very long residency time
+|Too many page ins or outs per second
-|600
+|10
-|-
-|RESTIME_OK
-|Acceptable residency time (ms)
-|40
-|-
-|RESTIME_PROB
-|Indicating residency time is too short
-|20
 |}
-'''States'''
+'''States (AIX only)'''
 {| border="1" cellpadding="6" cellspacing="0"
 !width="120" bgcolor="#cccccc" | Escalation
 |-
-|RAM_IDLE
+|BUSY
 |normal
-|$residency_time >= $RESTIME_LONG
+|$pgins_per_sec >= $OVER_PAGING &#124;&#124; $pgouts_per_sec >= $OVER_PAGING
-|
+|alarm after 62s
 |-
-|RAM_OK
+|ACCEPTABLE
 |normal
-|$residency_time > $RESTIME_OK
+|&nbsp;
-|
+|&nbsp;
-|-
-|RAM_WARN
-|warning
-|$residency_time > $RESTIME_PROB
-|
-|-
-|RAM_PROB
-|alarm
-|
-|
 |}
 <br>
-==== Swap Space Sentry ====
-;Availability: AIX, HPUX, Linux, Solaris, Tru64, Windows
+==== Physical Memory Sentry ====
-'''Constants'''
+;Availability: HPUX, Linux, Solaris, Windows
+'''Constants (Solaris only)'''
 {| border="1" cellpadding="6" cellspacing="0"
 !width="65"  bgcolor="#cccccc" | Value
 |-
-|SWAP_LOW
+|RESTIME_LONG ||Very long residency time               ||600
-|Low percent free swap space
-|15
 |-
-|SWAP_VERY_LOW
+|RESTIME_OK   ||Acceptable residency time (ms)         ||40
-|Very low percent free swap space
+|-
-|10
+|RESTIME_PROB ||Indicating residency time is too short ||20
 |}
-'''States'''
+'''States (Solaris only)'''
 {| border="1" cellpadding="6" cellspacing="0"
 !width="120" bgcolor="#cccccc" | Escalation
 |-
-|VERY_LOW
+|Very_Low ||warning ||$residency_time <= $RESTIME_PROB ||alarm after 210s
-|alarm
-|$swap_pct_free <= $SWAP_VERY_LOW
-|
 |-
-|LOW
+|Low      ||normal  ||$residency_time <= $RESTIME_OK   ||warning after 210s
-|warning
-|$swap_pct_free <= $SWAP_LOW
-|
 |-
-|OK
+|OK       ||normal  ||&nbsp;                           ||&nbsp;
-|normal
-|
-|
 |}
 <br>
-==== Collisions Sentry ====
-;Availability: AIX, Linux, SCO, Solaris, Tru64
+==== Swap Space Sentry ====
+;Availability: AIX, HPUX, Linux, Solaris, Tru64
 '''Constants'''
 !width="65"  bgcolor="#cccccc" | Value
 |-
-|NET_COLL_WARN
+|SWAP_LOW      ||Low percent free swap space      ||15
-|Indicating many collisions
-|15
 |-
-|NET_COLL_PROB
+|SWAP_VERY_LOW ||Very low percent free swap space ||10
-|Indicating excessive collisions
-|30
-|-
-|NET_WORKING
-|Less than this many transfers and the network is under-utilised
-|50
 |}
 !width="120" bgcolor="#cccccc" | Escalation
 |-
-|VERY_BUSY
+|Very_Low ||warning ||$swap_pct_free <= $SWAP_VERY_LOW ||alarm after 570s
-|alarm
-|$collision_pct >= $NET_COLL_PROB && $packets_out > $NET_WORKING
-|
 |-
-|BUSY
+|Low      ||normal  ||$swap_pct_free <= $SWAP_LOW      ||warning after 570s
-|warning
-|$collision_pct >= $NET_COLL_WARN && $packets_out > $NET_WORKING
-|
 |-
-|OK
+|OK       ||normal  ||&nbsp;                           ||&nbsp;
-|normal
-|
-|
 |}
 <br>
-==== Drops Sentry ====
-;Availability: AIX, Linux, Windows
+==== Network Sentry ====
-'''Constants'''
+;Availability: AIX, HPUX, Linux, SCO, Solaris, Tru64, Windows
+'''Constants (AIX, HPUX, Linux, SCO, Solaris, Tru64)'''
 {| border="1" cellpadding="6" cellspacing="0"
 !width="65"  bgcolor="#cccccc" | Value
 |-
-|DROP_PROBLEM
+|NET_WORKING    ||Less than this many transfers and the network is under-utilised ||50
-|Indicating incoming packet drop rate problem
+|-
-|1
+|NET_COLL_PROB  ||Indicating excessive collisions                                 ||30
+|-
+|NET_COLL_WARN  ||Indicating many collisions                                      ||15
+|-
+|NET_ERROR_OK   ||Indicating hardware is OK                                       ||0
+|-
+|NET_ERROR_PROB ||Indicating possible hardware error                              ||0.05
 |}
-'''States'''
+'''States (AIX, HPUX, Linux, SCO, Solaris, Tru64)'''
 {| border="1" cellpadding="6" cellspacing="0"
 !width="120" bgcolor="#cccccc" | Escalation
 |-
-|NO_DROPS
+|Many_Errors ||warning ||$errors_total >= $NET_ERROR_PROB                                ||alarm after 390s
-|normal
-|$drop_in_rate == 0
-|
 |-
-|PROB_DROPS
+|Very_Busy   ||warning ||$collisions >= $NET_COLL_PROB && $pckts_transmit > $NET_WORKING ||alarm after 390s
-|warning
-|$drop_in_rate < $DROP_PROBLEM
-|
 |-
-|EXCESS_DROPS
+|Some_Errors ||normal  ||$errors_total > $NET_ERROR_OK                                   ||warning after 390s
-|alarm
+|-
-|$drop_in_rate >= $DROP_PROBLEM
+|Busy        ||normal  ||$collisions >= $NET_COLL_WARN && $pckts_transmit > $NET_WORKING ||warning after 390s
-|
+|-
+|OK          ||normal  ||&nbsp;                                                          ||&nbsp;
 |}
-<br>
+'''Constants (Windows only)'''
-==== Errors Sentry ====
-;Availability: AIX, Linux, SCO, Solaris, Tru64, Windows
-'''Constants'''
 {| border="1" cellpadding="6" cellspacing="0"
 !width="65"  bgcolor="#cccccc" | Value
 |-
-|NET_ERROR_OK
+|NET_DROP_OK    ||Indicating excessive collisions                                 ||0
-|Acceptable number of errors
+|-
-|0
+|NET_DROP_PROB  ||Indicating many collisions                                      ||1
+|-
+|NET_ERROR_OK   ||Indicating hardware is OK                                       ||0
 |-
-|NET_ERROR_PROB
+|NET_ERROR_PROB ||Indicating possible hardware error                              ||0.05
-|Unacceptable number of errors
-|0.05
 |}
-'''States'''
+'''States (Windows only)'''
 {| border="1" cellpadding="6" cellspacing="0"
 !width="120" bgcolor="#cccccc" | Escalation
 |-
-|EXCES_ERRORS
+|Many_Errors ||warning ||$pkts_errs_sec >= $NET_ERROR_PROB ||alarm after 390s
-|alarm
-|$error_rate >= $NET_ERROR_PROB
-|
 |-
-|PROB_ERRORS
+|Many_Drops  ||warning ||$pkts_drps_sec >= $NET_DROP_PROB  ||alarm after 390s
-|warning
+|-
-|$error_rate > $NET_ERROR_OK
+|Some_Errors ||normal  ||$pkts_errs_sec > $NET_ERROR_OK    ||warning after 390s
-|
 |-
-|EXCESS_DROPS
+|Some_Drops  ||normal  ||$pkts_drps_sec > $NET_DROP_OK     ||warning after 390s
-|alarm
+|-
-|
+|OK          ||normal  ||&nbsp;                            ||&nbsp;
-|
 |}
 <br>
 ==== Printers Sentry ====
-;Availability: Linux, Solaris, Windows
+;Availability: Windows
-'''States (Solaris only)'''
+'''States (Windows only)'''
 {| border="1" cellpadding="6" cellspacing="0"
 !width="120" bgcolor="#cccccc" | Escalation
 |-
-|NO_PAPER
+|Idle      ||normal   ||$status == “Idle”     ||&nbsp;
-|alarm
-|$status == “faulted” && $reason == “paper”
-|
 |-
-|FAULTED
+|Printing  ||normal   ||$status == “Printing” ||&nbsp;
-|alarm
-|$status == “faulted”
-|
 |-
-|UNKNOWN
+|No_Paper  ||alarm    ||$status == “Paperout” ||&nbsp;
-|warning
-|$status == “unknown”
-|
 |-
-|IDLE
+|Offline   ||info     ||$status == “Offline”  ||&nbsp;
-|normal
-|$status == “idle”
-|
 |-
-|PRINTING
+|Paused    ||info     ||$status == “Paused”   ||&nbsp;
-|normal
-|$status == “printing”
-|
 |-
-|WAITING
+|Problem   ||alarm    ||$status == “Error”    ||&nbsp;
-|normal
-|$status == “waiting”
-|
 |-
-|DISABLED
+|No_Access ||alarm    ||$status == “NoAccess” ||&nbsp;
-|disabled
+|-
-|$status == “disabled”
+|Unknown   ||alarm    ||&nbsp;                ||&nbsp;
-|
 |}
 <br>
-==== CPU_Usage Sentry ====
-;Availability: AIX, HPUX, Linux, SCO, Solaris, Tru64
+==== Process Sentry ====
-'''Constants'''
+;Availability: Windows
+'''Constants (Windows only)'''
 {| border="1" cellpadding="6" cellspacing="0"
 !width="65"  bgcolor="#cccccc" | Value
 |-
-|CPU_HIGH
+|CPU_HIGH    ||Percentage CPU usage considered high for a process ||10
-|Percentage CPU usage considered high for a process
-|10
 |-
-|CPU_PROBLEM
+|CPU_PROBLEM ||Unacceptable percentage CPU usage for a process    ||50
-|Unacceptable percentage CPU usage for a process
-|50
 |}
-'''States'''
+'''States (Windows only)'''
 {| border="1" cellpadding="6" cellspacing="0"
 !width="120" bgcolor="#cccccc" | Escalation
 |-
-|VHIGH_CPU
+|VeryHigh_CPU ||info     ||$pct_proc_time >= $CPU_PROBLEM ||warning after 120s, alarm after 300s
-|info
-|$cpu_percent >= $CPU_PROBLEM
-|warning after 120s, alarm after 180s
 |-
-|HIGH_CPU
+|High_CPU     ||info     ||$pct_proc_time >= $CPU_HIGH    ||&nbsp;
-|normal
-|$cpu_percent >= $CPU_HIGH
-|
 |-
-|OK_CPU
+|OK_CPU       ||normal   ||&nbsp;                         ||&nbsp;
-|disabled
+|-
-|
+|Not_Running  ||built-in ||No data state                  ||&nbsp;
-|delete immediately
 |}
 <br>
-==== MEM_Usage Sentry ====
-;Availability: AIX, HPUX, Linux, SCO, Solaris, Tru64
+==== Services Sentry ====
-'''Constants'''
+;Availability: AIX, HPUX, Linux, SCO, Solaris, Tru64, Windows
-{| border="1" cellpadding="6" cellspacing="0"
+'''States (AIX only)'''
-!width="150" bgcolor="#cccccc" | Constant
-!width="500" bgcolor="#cccccc" | Description
-!width="65"  bgcolor="#cccccc" | Value
-|-
-|MEMORY_HIGH
-|Percentage memory usage considered high for a process
-|10
-|-
-|MEMORY_PROBLEM
-|Unacceptable percentage memory usage for a process
-|50
-|}
-'''States'''
 {| border="1" cellpadding="6" cellspacing="0"
 !width="120" bgcolor="#cccccc" | Escalation
 |-
-|VHIGH_MEMORY
+|INACTIVE
-|info
+|disabled
-|$mem_percent >= $MEMORY_PROBLEM
+|$status == “inoperative”
-|warning after 120s, alarm after 180s
+|&nbsp;
 |-
-|HIGH_MEMORY
+|ACTIVE
 |normal
-|$mem_percent >= $MEMORY_HIGH
+|&nbsp;
-|
+|&nbsp;
-|-
-|OK_MEMORY
-|disabled
-|
-|delete immediately
 |}
-<br>
+'''States (Linux only)'''
-==== Processes Sentry ====
-;Availability: AIX, HPUX, Linux, SCO, Solaris, Tru64
-'''States (AIX only)'''
 {| border="1" cellpadding="6" cellspacing="0"
 !width="120" bgcolor="#cccccc" | Escalation
 |-
-|DOWN
+|Confused    ||info     ||$Status == “Off” && $PID != “-1” ||&nbsp;
-|alarm
+|-
-|$count == 0
+|Off         ||normal   ||$Status == “Off”                 ||&nbsp;
-|
 |-
-|UP
+|Not_Running ||warning  ||$PID == -1                       ||&nbsp;
-|normal
+|-
-|
+|Running     ||normal   ||$PID != -1                       ||&nbsp;
-|
 |}
-<br>
+'''States (HPUX, Solaris, Tru64)'''
-==== BadSU Sentry ====
-;Availability: Linux
-'''States'''
 {| border="1" cellpadding="6" cellspacing="0"
 !width="120" bgcolor="#cccccc" | Escalation
 |-
-|Violation
+|Not_Running ||warning  ||$count == 0   ||&nbsp;
-|alarm
-|$Count > 1
-|acknowledgment
 |-
-|Report
+|Runing      ||normal   ||&nbsp;        ||&nbsp;
-|info
-|$Count == 1
-|acknowledgment
 |}
-<br>
+'''States (Windows only)'''
-==== Services Sentry ====
-;Availability: AIX, HPUX, Linux, SCO, Solaris, Tru64, Windows
-'''States (Linux only)'''
 {| border="1" cellpadding="6" cellspacing="0"
 !width="120" bgcolor="#cccccc" | Escalation
 |-
-|Confused
+|Down        ||alarm    ||$state == “Stopped” && $start == “Automatic” ||&nbsp;
-|info
-|$Status == “Off” && $PID != “-1”
-|
 |-
-|Unconfigured
+|Confused    ||info     ||$state == “Running” && $start == “Disabled”  ||&nbsp;
-|info
-|$Status == “Unconfigured”
-|
 |-
-|Off
+|Running     ||normal   ||$state == “Running”                          ||&nbsp;
-|normal
-|$Status == “Off”
-|
 |-
-|Stopped
+|Disabled    ||disabled ||$state == “Stopped” && $start == “Disabled”  ||&nbsp;
-|warning
-|$PID == -1
-|
 |-
-|Running
+|Paused      ||info     ||$state == “Running”                          ||&nbsp;
-|normal
-|$PID != -1
-|
-|}
-'''States (Solaris, Tru64)'''
-{| border="1" cellpadding="6" cellspacing="0"
-!width="125" bgcolor="#cccccc" | State
-!width="65"  bgcolor="#cccccc" | Severity
-!width="390" bgcolor="#cccccc" | Condition
-!width="120" bgcolor="#cccccc" | Escalation
 |-
-|DOWN
+|Intermediate||info     ||$state == “Starting” &#124;&#124; $state == “Stopping” &#124;&#124; $state == “Continue pending” &#124;&#124; $state == “Pause pending” ||&nbsp;
-|warning
-|$count == 0
-|
 |-
-|UP
+|Unknown     ||alarm    ||&nbsp;                                       ||&nbsp;
-|normal
-|
-|
-|-
-|UNDEFINED&sup1;
-|normal
-|
-|
-|}
-&sup1; This state is not used for monitoring, it is only there as a placeholder for actions.
-'''States (AIX only)'''
-{| border="1" cellpadding="6" cellspacing="0"
-!width="125" bgcolor="#cccccc" | State
-!width="65"  bgcolor="#cccccc" | Severity
-!width="390" bgcolor="#cccccc" | Condition
-!width="120" bgcolor="#cccccc" | Escalation
-|-
-|INACTIVE
-|disabled
-|$status == “inoperative”
-|
-|-
-|ACTIVE
-|normal
-|
-|
 |}
 <br>

Sentry	AIX	HPUX	Linux	Solaris	Tru64	Unixware	Windows
Connectivity¹	√	√	√	√	√	√	√
Event_Manager¹	√	√	√	√	√	√	√
Host_Monitor	√	√	√	√	√	√	√
Scheduler²	√	√	√	√	√	√	√

OS	Version	Availability Date	Min Sentinel Version
AIX risc	2.1	17th Mar, 2004	4.4
HPUX parisc	2.1	11th May, 2004	4.4
HPUX intel	2.2	6th Jul, 2006	4.4.3
Linux intel	2.1	20th Apr, 2004	4.4.3
Solaris intel	2.1	14th Jan, 2003	4.4
Solaris sparc	2.2	10th Apr, 2006	4.4.3
Tru64 alpha	2.1	2nd Jun, 2004	4.4
Unixware intel	1.0	10th Mar, 2004	4.2
Windows intel	2.2	28th Apr, 2006	4.4.3

Sentry	AIX	HPUX	Linux	SCO	Solaris	Tru64	Windows
CPU_States¹	√	√	√	√	√	√	√
Context_Switches	√	√	√	√		√	√
Interrupts	√	√	√			√	√
Run_Queue	√	√	√	√	√	√	√
Processors	√	√	√		√
System_Calls	√	√		√		√	√

OS	More CPU_States Information	Description
AIX, Solaris, Tru64	% Wait IO	The amount of time spent waiting for blocked I/0 to complete.
Linux	% Nice CPU	The percentage of time that the system is in the user state running processes at low (nice) scheduling priority.
HPUX

Sentry	AIX	HPUX	Linux	SCO	Solaris	Tru64	Windows
Paging_File_Space							√
Paging_Rate	√	√	√	√	√	√
Physical_Memory		√	√		√		√
Swap_Rate		√	√		√
Swap_Space	√	√	√	√	√	√
Virtual_Memory							√

Sentry	AIX	HPUX	Linux	SCO	Solaris	Tru64	Windows
CPU_Information	√	√	√¹	√	√	√	√
Memory_Information	√	√	√	√	√	√	√
Operating_System	√	√	√	√	√	√	√
System_Uptime	√	√	√	√	√	√	√

Sentry	Class	Agent	Poll Time	States	Logging
CPU_States	CPU	Performance	60s	AIX only	√
Context_Switches	CPU	Performance	60s		√
Interrupts	CPU	Performance	60s		√
Run_Queue	CPU	Performance	60s	√	√
Processors	CPU/Processors	MultiProcessor	60s
System_Calls	CPU	Performance	60s		√
Disk	Disk	Disk	120s	√	√
Error_Log	Error_Log	ErrorLog	120s	√
EventLog	EventLog	EventLog	90s	√
File_Info	Files	FileInfo	60s	√
Filesystem	Filesystem	Filesystem	300s	√	√
Paging_File_Space	Memory	PageSpace	180s	√	√
Paging_Rate	Memory	Performance	60s	AIX only	√
Physical_Memory	Memory	Performance	60s	Solaris only	√
Swap_Rate	Memory	Performance	60s		√
Swap_Space (Linux)	Memory	Performance	60s	√	√
Swap_Space (Unix)	Memory	Swap	180s	√	√
Virtual_Memory	Memory	MemoryInfo	60s		√
Network	Network	Network	120s	√	√
Printers	Printers	Printers	180s	√
Process	Processes	ProcessInfo	75s	√	√
Services	Services	Service	120s	√
CPU_Information	System	Information	n/a³
Memory_Information	System	Information	n/a³
Operating_System	System	Information	n/a³
System_Uptime	System	Uptime	100s

Constant	Description	Value
CPU_BUSY	User + System percentage indicating the CPU is busy	90
CPU_OVERLOADED	User + System percentage indicating the CPU is overloaded	95

State	Severity	Condition	Escalation
OVERLOAD_CPU	warning	$cpu_user + $cpu_system > $CPU_OVERLOADED	severe after 120s
BUSY_CPU	normal	$cpu_user + $cpu_system > $CPU_BUSY	warning after 120s
NOT_BUSY	normal

State	Severity	Condition	Escalation
UNKNOWN	severe	$Type == “unknown”	acknowledgement
PERMANENT	alarm	$Type == “permanent”	acknowledgement
TEMPORARY	warning	$Type == “temporary”	acknowledgement
INFORMATION	info	$Type == “informational”	acknowledgement
PENDING	info	$Type == “pending”	acknowledgement
PERFORMANCE	info	$Type == “performance”	acknowledgement

Constant	Description	Value
LOW	Indicating low free space	10
VERY_LOW	Indicating very low free space	5
NEARLY_FULL	Indicating the filesystem is nearly full	2
FULL	Indicating the filesystem is full	0

State	Severity	Condition
FULL	critical	$pct_free == $FS_FULL
NO_INODES	critical	$pct_free_inodes == $FS_FULL
NEARLY_FULL	severe	$pct_free < $FS_NEARLY_FULL
FEW_INODES	severe	$pct_free_inodes < $FS_NEARLY_FULL
VERY_LOW	alarm	$pct_free < $FS_VERY_LOW
VLOW_INODES	alarm	$pct_free_inodes < $FS_VERY_LOW
LOW	warning	$pct_free < $FS_LOW
LOW_INODES	warning	$pct_free_inodes < $FS_LOW
SUFFICIENT	normal

Constant	Description	Value
RUNQ_WARN	Run queue is getting long	3
RUNQ_PROB	Run queue is too long	6

State	Severity	Condition	Escalation
Very_Busy	warning	$run_queue > $RUNQ_PROB	alarm after 210s
Busy	normal	$run_queue > $RUNQ_WARN	warning after 210s
OK	normal

State	Severity	Condition	Escalation
OVERLOAD	warning	$run_queue > $RUNQ_PROB	severe after 120s
BUSY	normal	$run_queue > $RUNQ_WARN	warning after 120s
NORMAL	normal

State	Severity	Condition	Escalation
BUSY	normal	$sys_per_sec > $CPU_SYSCALLS	alarm after 120s
NORMAL	normal

Constant	Description	Value
DSK_BUSY_WARN	% busy indicating disk is busy	5
DSK_BUSY_PROB	% busy indicating disk is very busy	20
DSK_SVCT_WARN	Indicates a long service time (ms)	30
DSK_SVCT_PROB	Indicates a very long service time (ms)	50

State	Severity	Condition	Escalation
Very_Busy	warning	$percent_busy >= $DSK_BUSY_PROB && $service_time >= $DSK_SVCT_PROB	alarm after 390s
Busy	normal	$percent_busy >= $DSK_BUSY_WARN && $service_time >= $DSK_SVCT_WARN	warning after 390s
OK	normal
Delete	built-in	No data state

State	Severity	Condition	Escalation
DSK_VERYBUSY	warning	$percent_busy > $DSK_BUSY_PROB	severe after 120s
DSK_BUSY	normal	$percent_busy > $DSK_BUSY_WARN	warning after 120s
DSK_NORMAL	normal

State	Severity	Condition	Escalation
Very_Busy	warning	$percent_busy >= $DSK_BUSY_PROB	alarm after 390s
Busy	normal	$percent_busy >= $DSK_BUSY_WARN	warning after 390s
OK	normal

State	Severity	Condition	Escalation
Error	severe	$type == “error” \|\| $type == “audit failure”	delete after acknowledgement
Warning	warning	$type == “temporary”	delete after acknowledgement
Information	info	$type == “information” \|\| $type == “audit success”	delete after acknowledgement
Unknown	alarm		delete after acknowledgement

State	Severity	Condition
Nonexistent	alarm	$exists == 0
No_Access	warning	$owner == “CAN'T ACCESS FILE”
Dir_Exists	normal	$type == “directory”
File_Exists	normal

Search

Operating System KBs

From Documentation

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Contents

Overview

Standard Knowledge Base

OS Knowledge Base Versions

OS Knowledge Bases

CPU Class

Disk Class

Error Log Class

Event Log Class

Files Class

Filesystem Class

Memory Class

Printers Class

Network Class

Processes Class

Services Class

System Class

Sentry Details

Overview

Sentry State Details

CPU States Sentry

Run Queue Sentry

System Calls Sentry

Disk Sentry

Error Log Sentry

EventLog Sentry

FileInfo Sentry

Filesystem Sentry

Paging File Space Sentry

Paging Rate Sentry

Physical Memory Sentry

Swap Space Sentry

Network Sentry

Printers Sentry

Process Sentry

Services Sentry

Constant	Description	Value
SWAP_LOW	Low percent free swap space	15
SWAP_VERY_LOW	Very low percent free swap space	8

State	Severity	Condition	Escalation
Very_Low	warning	$pct_avail_page <= $SWAP_VERY_LOW	alarm after 570s
Low	normal	$pct_avail_page <= $SWAP_LOW	warning after 570s
OK	normal

State	Severity	Condition	Escalation
BUSY	normal	$pgins_per_sec >= $OVER_PAGING \|\| $pgouts_per_sec >= $OVER_PAGING	alarm after 62s
ACCEPTABLE	normal

Constant	Description	Value
RESTIME_LONG	Very long residency time	600
RESTIME_OK	Acceptable residency time (ms)	40
RESTIME_PROB	Indicating residency time is too short	20

State	Severity	Condition	Escalation
Very_Low	warning	$residency_time <= $RESTIME_PROB	alarm after 210s
Low	normal	$residency_time <= $RESTIME_OK	warning after 210s
OK	normal

State	Severity	Condition	Escalation
Very_Low	warning	$swap_pct_free <= $SWAP_VERY_LOW	alarm after 570s
Low	normal	$swap_pct_free <= $SWAP_LOW	warning after 570s
OK	normal

Constant	Description	Value
NET_WORKING	Less than this many transfers and the network is under-utilised	50
NET_COLL_PROB	Indicating excessive collisions	30
NET_COLL_WARN	Indicating many collisions	15
NET_ERROR_OK	Indicating hardware is OK	0
NET_ERROR_PROB	Indicating possible hardware error	0.05

State	Severity	Condition	Escalation
Many_Errors	warning	$errors_total >= $NET_ERROR_PROB	alarm after 390s
Very_Busy	warning	$collisions >= $NET_COLL_PROB && $pckts_transmit > $NET_WORKING	alarm after 390s
Some_Errors	normal	$errors_total > $NET_ERROR_OK	warning after 390s
Busy	normal	$collisions >= $NET_COLL_WARN && $pckts_transmit > $NET_WORKING	warning after 390s
OK	normal

Constant	Description	Value
NET_DROP_OK	Indicating excessive collisions	0
NET_DROP_PROB	Indicating many collisions	1
NET_ERROR_OK	Indicating hardware is OK	0
NET_ERROR_PROB	Indicating possible hardware error	0.05

State	Severity	Condition	Escalation
Many_Errors	warning	$pkts_errs_sec >= $NET_ERROR_PROB	alarm after 390s
Many_Drops	warning	$pkts_drps_sec >= $NET_DROP_PROB	alarm after 390s
Some_Errors	normal	$pkts_errs_sec > $NET_ERROR_OK	warning after 390s
Some_Drops	normal	$pkts_drps_sec > $NET_DROP_OK	warning after 390s
OK	normal