MONITOR

Purpose

Use at the server console to

View server activity

Lock the console

Assess server RAM and CPU utilization

Set server parameters

Syntax

LOAD [path ]MONITOR [option ]

Parameter	Use to
path	Specify the path leading to MONITOR if you moved it from the default directory.
option	Specify a MONITOR option.

MONITOR Options

Option	Use to
L	Lock the console upon loading MONITOR. To lock the console upon booting, place this option in the AUTOEXEC.NCF file. Note: If you use this option, use the supervisor password to unlock the console.
N	Load MONITOR without the screen saver. By default, NetWare has a snake-like screen saver that moves randomly on the server screen. If you load MONITOR without the N option, a snake appears on the screen after 1 minute of inactivity if the console is locked (after 10 minutes if it is not locked). As network use increases, the snake moves faster and the tail gets longer. To retrieve the MONITOR display, press any key.
Tnn	Specify the number of seconds of keyboard inactivity before the screen saver is activated. Replace nn with a number in seconds
M	Activate the screen saver only if the MONITOR window is displayed on the screen. Without the M option, the screen saver is activated no matter what window is displayed.

Using MONITOR

The main MONITOR screen displays server statistics and a menu that allows you to access additional information. The following figure shows a typical main screen display.

Figure 5
The MONITOR Main Screen

See the following tables for explanations of the information on the MONITOR screen:

Table 3, Statistics in the MONITOR `General Information' Display

Table 4, MONITOR `Available Options' Menu
NOTE: For information about all MONITOR statistics and menu options, press <F1> for online help.

Table 3. Statistics in the MONITOR General Information Display

Statistic	Explanation
Operating system version and date	The version and release date of the system (upper left corner of the screen).
Server server name on network tree name	The name of the server and the Novell^® Directory Services tree name.
Server Up Time	The length of time the server has been running since it was last booted.
Active Processors	The number of enabled processors.
Utilization	On a uniprocessor server, reflects CPU utilization. This number is relative to the amount of time the kernel spends in the idle loop process. On a multiprocessor server, this value is the average utilization of all active processors. For utilization information about individual processors, select Multiprocessor Information from the Available Options menu. This value is reset when a change in system configuration occurs such as an NLM being loaded or unloaded, or a volume being mounted or dismounted. Note: To measure CPU utilization exactly, see the histogram displayed when you select either Scheduling Information or Processor Utilization from the Available Options menu.
Original Cache Buffers	The number of cache buffers available when the server is booted. The figure represents the number of blocks installed as cache memory in your server. Default block size: 4 KB.
Total Cache Buffers	The number of blocks available for file caching. This number decreases as modules are loaded.
Dirty Cache Buffers	The number of file blocks in memory waiting to be written to disk.
Current Disk Requests	The number of disk requests (in a queue) the server is waiting to service.
Packet Receive Buffers	The number of buffers available to handle station requests. Default: 10.
Directory Cache Buffers	The number of buffers allocated to handle directory caching.
Maximum Service Processes	Indicates the number of task handlers the system allocates to service client requests. Once memory is allocated for service processes, it remains allocated even when no longer required. Each service process requires 4 KB of RAM. You can set this parameter using SET. For more information, press <F1> for online help.
Current Service Processes	The number of service processes currently allocated. If this number corresponds to the Maximum Service Processes value, performance will be adversely affected. You should allocate more service processes. Use the SET utility to set the Maximum Service Processes parameter.
Maximum Licensed Connections	The maximum number of licensed server connections possible. This number corresponds with the number-of-users version of NetWare you purchased.
Current Licensed Connections	The number of active licensed connections. These connections count toward the limit on your NetWare license. For example, if you have a NetWare license for 50 users and there are currently 45 licensed connections, you have 5 unused connections. To view the current licensed connections, choose the Connection Information option from the Available Options menu.
Open Files	The number of files being accessed by the server and by workstations.

Table 4. MONITOR Available Options Menu

Menu Option	Use to
Connection Information	List active connections. List licensed and unlicensed connections. List record locks for a user. Clear a connection. List open files. List record lock status of open files. Send a message to a workstation connection. Note: Press <F3> to sort the items in the connection list.
Disk Information	List system hard disks. List volume segments per hard disk. Change the Read After Write Verify status of the hard disk. Flash the hard disk light. Change the drive light status. Activate/deactivate a hard disk. Mount/dismount a removable media device. Lock/unlock a removable media device.
LAN/WAN Information	List LAN driver configuration and statistics. View the LAN driver version and the protocols bound to it. View node and network address. Note: For information on each LAN driver statistic, see LAN Driver Statistics. Note: MONITOR does not provide LAN driver statistics for SFT III servers.
System Module Information	List modules loaded on the system by name, size, and version. List size of module code and data image. List resources allocated by the module (resource tags). View resource tag memory usage.
Lock File Server Console	Lock or unlock the server console keyboard. Once the keyboard is locked, you cannot change screens until you unlock the keyboard, using either the password that you used to lock the console or the ADMIN password.
File Open/Lock Activity	Check a file's lock activity and status. View which stations have open files. View mounted volumes and directories on each volume. View files in a directory.
Cache Utilization	View disk cache block request statistics including: total cache block requests, the number of times a block request had to wait because there were no available cache blocks, long and short term cache hits and dirty cache hits. Use the Long Term Cache Hits information (the percentage of time the operating system retrieves the data it needs directly from cache) to assess server RAM. Note: For more information on these statistics, press <F1> for help while in this screen.
Processor Utilization	Select an active process or multiple processes and available interrupts to sample for a histogram. View a histogram for the selected processes. The histogram displays CPU usage and the number of times the CPU has serviced the process during the sample period. To measure CPU utilization, view the Idle Loop process in this screen and find the LOAD percentage associated with this process. To calculate exact CPU utilization, subtract this percentage from 100%. Note: On a multiprocessor server, this information is for processor 0. For information about other processors, select the Multiprocessor Information menu option.
Resource Utilization	View memory usage statistics for the cache buffer pool, allocated memory in movable and non-movable memory pools, and code and data memory. View tracked resources (resource tags) allocated by the operating system and NLM programs. When you select Resource Utilization, the upper screen displays a Server Memory Statistics window.
Memory Utilization	View allocated memory information for the entire system or for one selected system module. View memory statistics such as the percent of allocated memory in use, memory blocks and bytes in use, free blocks. Perform garbage collection for the system or for one module. Press <F3> in the System Modules window to perform garbage collection for the whole system. Or select one module from the System Modules window and then press <F3> to perform garbage collection on that module. Note: For more information, press <F1> for help while in the System Modules window.
Scheduling Information	View and change the priority of a process by delaying CPU execution of a process. View the number of times the process ran during the sample period and the CPU time spent executing code for that process.
Server Parameters	Set values for server parameters. This menu item functions the same way as the SERVMAN utility.
Exit	Exit MONITOR.

Additional Information

Topic	See
Assessing server RAM	Assessing Server RAM in Supervising the Network .
Checking a server's processor utilization	Checking a Server's Processor Utilization in Supervising the Network .
Checking for disk errors	Checking for Disk Errors in Supervising the Network .
Listing LAN drivers and statistics	Viewing LAN Driver Statistics in Supervising the Network .
LAN driver statistics	Appendix A, LAN Driver Statistics.
Clearing workstation connections	Clearing a Workstation Connection in Supervising the Network . CLEAR STATION
Sending a message to a workstation connection	Sending a Message Using MONITOR in Supervising the Network
Increasing communications buffers	Increasing the Maximum Number of Packet Receive Buffers in Supervising the Network .
Prioritizing server processes	SCHDELAY Prioritizing Server Processes in Supervising the Network .
Setting server parameters	SERVMAN or SET