Kernel Reader (Simple) Module Version 1.0 (Sun Management Center 3.6 User's Guide)

Sun Management Center 3.6 User's Guide

Kernel Reader (Simple) Module Version 1.0

The Kernel Reader (Simple) module generates a warning alarm if the module finds any disk with an increasing wait queue while busy.

A warning alarm occurs when the disk is over 75% busy and the average queue length is over 10 with an increasing wait queue. The warning alarm is on until the disk is not over 70% busy and the average queue length is no longer than 8. Similarly, this module generates a warning alarm if 90% of swap space is in use. The alarm remains open until the swap space in use is less than 80% of the total swap space.

The following table provides default alarm thresholds for applicable Kernel Reader modules.

Table C–55 Alarm Thresholds for the Kernel Reader Module


Alarm Threshold Message	Condition
Error	If file system kpctUsed is > 98
Warning	If file system kpctUsed is > 90
Error	If file system inode percentage is > 90
Warning	If file system inode percentage is > 80

User Statistics Table

The following table provides a brief description of the properties for User Statistics.

Table C–56 User Statistics Properties


Property	Description
Console User	User currently logged in on the console
Number Of Users	Number of unique users currently logged in
Number Of User Sessions	Number of currently active user sessions
Max Console User	Login name of the user that logged into the system console the most times since the last reboot

Interprocess Communication Tables

The following tables describe interprocess communication properties.

The following table describes the shared memory properties.

Table C–57 IPC Shared Memory Properties


Property	Description
Total Shared Memory Segments	Total number of shared memory segments initially available for use.
Available Shared Memory Segments	Number of currently available shared memory segments.
Shared Memory Segments Used	Shared memory segments used as a percentage of the total units.

The following table describes semaphores properties.

Table C–58 IPC Semaphores Properties


Property	Description
Total Semaphores Available	Total number of semaphores currently available.
Semaphores Used	Semaphores used as a percentage of the total.

The following table provides a brief description of the properties for System Load Statistics.

Table C–59 System Load Statistics Properties


Property	Description
1 Min Load Average	Load average over the last 1 minute
5 Min Load Average	Load average over the last 5 minutes
15 Min Load Average	Load average over the last 15 minutes

Disk Statistics Managed Objects Tables

The following tables provide a brief description of the properties for Disk Statistics.

The following table provides a brief description of the properties for Disk Details.

Table C–60 Disk Details Properties


Property	Description
Disk Name	Name of the disk, such as sd0
Disk Alias	Name of the disk, such as c0t0d0
Read Operation Per Sec	Read operations per second
Writes Operation Per Sec	Write operations per second
Operation Per Sec (read + write)	Operations per second (read and write)
Number Of Bytes Read	Number of bytes read
Number Of Bytes Written	Number of bytes written
Number Of Bytes Transferred (read + write)	Number of bytes transferred (read and write)
Average Number Of Transactions Waiting	Average number of transactions waiting
Average Number Of Transactions Running	Average number of transactions running

The following table provides a brief description of the properties for Disk Service Time.

Table C–61 Disk Service Time Properties


Property	Description
Diskname	Name of the disk , such as sd0
Disk Alias	Name of the disk, such as c0t0d0
Percentage Of Time There Is A Transaction Waiting For Service	Percentage of time there is a transaction waiting for service (wait queue length)
Percentage Of Time The Disk Is Busy	Percentage of time the disk is busy (transaction running)
Average Wait Service Time	Average wait service time
Average Run Service Time	Average run service time
Average Service Time	Average service time
Rule 404	Meta Disk Rule

The following table provides a brief description of the properties for I/O error statistics.

Table C–62 I/O Error Statistics Properties


Property	Description
Device	The name of the device in a descriptive format
Software Errors	The total number of software errors
Hardware Errors	The total number of hardware errors
Transport Errors	The total number of transport errors
Total Errors	Total number of errors

Under the I/O Error Statistics Table, there are the following two tables.

Table C–63 Device Error Table


Property	Description
Device	The name of the device in descriptive format
Software Errors	Total number of software errors
Hardware Errors	Total number of hardware errors
Transport Errors	Total number of transport errors
Total Errors	Total number of errors

Table C–64 Tape Error Table


Property	Description
Device	The name of the device in descriptive format
Software Errors	Total number of software errors
Hardware Errors	Total number of hardware errors
Transport Errors	Total number of transport errors
Total Errors	Total number of errors

File System Usage Table

The following table provides a brief description of the properties for file system usage.

Table C–65 File System Usage Properties


Property	Description
Index	Mount point index
Mount Point	Mount point for the file system
Disk Name	Name of the device (`/dev/dsk/...`)
Size (KB)	Total size of the file system in Kbytes
Free (KB)	Available disk space in Kbytes
Free KB (Non Root)	Available disk space for non-superusers in Kbytes
Percent Used	Percentage of disk space used
Total Inodes	Total size of the file system in Kbytes
Available Inodes	Available disk space for the file system in Kbytes
Percentage Of Inodes Used	Percentage of inodes used

Note –

The Find All Recent Files (>2 or >10Meg) probe commands for the UFS Filesystem Usage and VXFS Filesystem Usage folders find only files that were created or modified less than 24 hours ago. The Find All Files (>2 or >10Meg) probe commands for UFS Filesystem Usage and VXFS Filesystem Usage find all files, regardless of the date/time they were created or modified. For more information about the probe command, see To Probe a Property.

CPU Statistics Managed Object Tables

The tables that are in this section provide a brief description of the properties for CPU Statistics managed objects.

The following table provides a brief description of the properties for CPU Utilization.

Table C–66 CPU Usage Properties


Property	Description
CPU Number	CPU number
% CPU Idle Time	Percentage of time spent by CPU on idle mode
% CPU User Time	Percentage of time spent by CPU on user mode
% CPU Kernel Time	Percentage of time spent by CPU on kernel mode
% CPU Wait Time	Percentage of time spent by CPU on wait mode
% CPU Wait Time On I/O	Percentage of time spent by CPU on wait mode for I/O
% CPU Wait Time On Swap	Percentage of time spent by CPU on wait mode for swap
% CPU Wait Time On Pio	Percentage of time spent by CPU on wait mode for Pio
Times Idle Thread Scheduled	Percentage of idle time spent by CPU on threads scheduled
Rule 403	Meta CPU Rule

The following table provides a brief description of the properties for CPU processes.

Table C–67 CPU Process Table


Property	Description
Processes in Run Queue	Processes in run queue
Processes Waiting	Waiting processes
Processes Swapped	Swapped processes
Total Number of CPUs	Total number of CPUs

The following table provides a brief description of the properties for CPU I/O.

Table C–68 CPU I/O Properties


Property	Description
CPU Number	Central Processing Unit (CPU) number
Physical Block Reads	Number of physical block reads
Physical Block Writes	Number of physical block writes
Logical Block Reads	Number of logical block reads
Logical Block Writes	Number of logical block writes
Raw I/O Reads	Number of raw I/O reads
Raw I/O Writes	Number of raw I/O writes
Bytes Read By Rdwr()	Number of bytes read by Rdwr()
Bytes Written By Rdwr()	Number of bytes written by Rdwr()
Terminal Input Characters	Number of terminal input characters
Chars Handled In Canonical Mode	Number of chars handled in canonical mode
Terminal Output Characters	Number of terminal output characters
Physical Block Writes	Number of physical block writes
Procs Waiting For Block I/O	Number of processes that are waiting for block I/O

The following table provides a brief description of the properties for CPU Interrupts.

Table C–69 CPU Interrupts Properties


Property	Description
CPU Number	CPU number
Context Switches	Number of context switches
Traps	Number of traps
Device Interrupts	Number of device interrupts
Interrupts As Threads	Number of interrupts as threads
Interrupts Blocked/Preempted/Released	Number of interrupts that were blocked, pre-empted or released

The following table provides a brief description of the properties for CPU system calls.

Table C–70 CPU System Call Properties


Property	Description
CPU Number	CPU number
System Calls	Number of system calls
Read+Readv System Calls	Number of read+ready system calls
Write+Writev System Calls	Number of Write+Writev system calls
Forks	Number of forks
Vforks	Number of Vforks
Execs	Number of executables
Msg Count	Number of message count
Semaphore Ops Count	Number of semaphore operation count
Pathname Lookups	Number of pathname lookups
`Ufs_iget()` Calls	Number of `ufs_iget()` calls
Directory Blocks Read	Number of directory block reads
Inodes Taken With Attached Pages	Number of indexes taken with attached pages
Inodes Taken With No Attached Pages	Number of indexes taken with no attached pages
Inode Table Overflows	Number of Inode table overflows
File Table Overflows	Number of file table overflows
Proc Table Overflows	Number of process table overflows

The following table provides a brief description of miscellaneous CPU properties.

Table C–71 CPU Miscellaneous Properties


Property	Description
CPU Number	CPU number
Involuntary Ctx Switches	Number of involuntary context switches
Thread_create()s	Number of thread_create()s
Cpu Migrations By Threads	Number of CPU migrations by threads
Xcalls To Other Cpus	Number of Xcalls to other CPUs
Failed Mutex Enters (adaptive)	Number of failed mutex enters (adaptive)
Rw Reader Failures	Number of read/write reader failures
Rw Write Failures	Number of read/write write failures
Loadable Module Loaded	Number of loadable module loaded
Loadable Module Unloaded	Number of loadable module unloaded
Tries To Acquire RW Lock	Number of tries to acquire read/write lock

The following table provides a brief description of the properties for CPU Regwindow.

Table C–72 CPU Regwindow Properties


Property	Description
CPU Number	CPU number
User Overflows	Number of user overflows
User Underflows	Number of user underflows
System Overflows	Number of system overflows
System Underflows	Number of system underflows
System User Overflows	Number of system user overflows

The following table provides a brief description of the properties for CPU Pageinfo.

Table C–73 CPU Pageinfo Properties


Property	Description
CPU Number	CPU number
Reclaims	Number of reclaims
Reclaims From Free List	Number of reclaims from free list
Pageins	Number of pageins
Pages Paged In	Number of pages that were paged in
Pageouts	Number of pageouts
Pages Paged Out	Number of pages that were paged out
Swapins	Number of swap ins
Pages Swapped In	Number of pages that were swapped in
Swapouts	Number of swap outs
Pages Swapped Out	Number of pages that were swapped out
Pages Zero Filled On Demand	Number of pages zero filled on demand
Pages Freed By Daemon	Number of pages fixed by daemon
Pages Examined By Pageout Daemon	Number of pages examined by the pageout daemon
Revolutions Of The Page Daemon Hand	Number of revolutions of the page daemon hand
Times Pager Scheduled	Number of times pager scheduled

The following table provides a brief description of the properties for CPU Faults.

Table C–74 CPU Faults Properties


Property	Description
CPU Number	CPU number
Minor Page Faults Via `hat_fault()`	Number of minor page faults through `hat_fault()`
Minor Page Faults Via `as_fault()`	Number of minor page faults through `as_fault()`
Major Page Faults	Number of major page faults
Copy-on-write Faults	Number of copy-on write faults
Protection Faults	Number of protection faults
Faults Due To Software Locking Req	Number of software locking faults
`as_fault()`s In Kernel `addr` Space	Number of in kernel `addr` space

Memory Usage Statistics Table

The following table provides a brief description of the properties for Memory Usage Statistics.

Table C–75 Memory Usage Statistics Properties


Property	Description
Physical Memory Available (MB)	Physical memory that is available in Mbytes
Physical Memory In Use (MB)	Physical memory in use in Mbytes
Percent Memory Used	Percentage of memory used
Physical Memory Free (MB)	Physical memory that is free in Mbytes
Percent Memory Free	Percentage of memory that is free

Swap Statistics Table

The following table provides a brief description of the properties for Swap Statistics.

Table C–76 Swap Statistics Properties


Property	Description
Available KB (Anon Memory Not Reserved)	Swap available. Total reserved swap space.
Reserved KB (Anon Memory Reserved But Not Allocated)	Swap reserved
Allocated KB (Anon Memory Not Free)	Swap allocated
Used KB	Swap used
Total KB (Used + Available)	Swap total
Percent Swap Used	Percentage of swap used
Rule 405	Meta Swap Rule

Streams Statistics Managed Objects Table

The following section provides the various Streams Statistics properties for the following managed objects:

Stream Head Cache
Queue Cache
Streams Messages
Linkinfo Cache
Strevent Cache
Syncq Cache
Qband Cache

The following table briefly describes the managed objects.

Table C–77 Streams Statistics Managed Objects


Properties	Description
Stream Head Cache	Kernel statistics for streams head cache
Queue Cache	Kernel statistics for queue cache
Streams Msgs	Kernel statistics for streams messages
Linkinfo Cache	Kernel statistics for link information cache
Strevent Cache	Kernel statistics for streams event cache
Syncq Cache	Kernel statistics for synoq cache
Qband Cache	Kernel statistics for qband cache

All of the Streams Statistics managed objects have the same properties. The following table presents these common properties.

Table C–78 Streams Statistics Table Properties


Property	Description
The Name Of The Cache	Name of the cache
Current Usage (total - avail)	Cache's current usage
Maximum Capacity	Maximum capacity of the cache
Cumulative Total Of Allocations	Number of total cache allocations
Number of Allocation Failures	Number of allocation failures
Percent Used	Percentage of cache used

Software Rules Table

The following table provides a brief description of the properties for Software Rules.

Table C–79 Software Rules Properties


Property	Description
Rule rknrd105	Software rule (refer to rule `rknrd105` in Appendix D, Sun Management Center Software Rules
Rule rknrd106	Software rule (refer to rule `rknrd106` in Appendix D, Sun Management Center Software Rules)

Zones Table

The following table provides a brief description of the properties for zones.

Table C–80 Zones Properties


Property	Description
Zone ID	Zone identification number
Zone Name	Name of the zone
Status	State of the zone
Root Dir	Directory in global zone that is root directory for a local zone
IP Address	IP address of the zone
Autoboot	Specifies whether the zone must automatically reboot when the system reboots