What is your schedule randomization set to? This takes precedence for
schedmode=polling.

       Al

Alan Davenport
Senior Storage Administrator
Selective Insurance
alan.davenport AT selectvie DOT com
(973) 948-1306

HELP SET RANDOMIZE

SET RANDOMIZE

SET RANDOMIZE (Set Randomization of Scheduled Start Times)

Use this command to set randomized start times within the startup window of
each schedule for clients using the client-polling scheduling mode. A
startup window is the start time and duration during which a schedule must
be initiated. A client-polling scheduling mode is a client/server
communication technique where the client queries the server for work. Each
schedule has a window during which execution can begin. To balance network
and server load, the start times for clients can be scattered across that
window. Use this command to specify the fraction of the window over which
start times for clients are to be distributed.

The randomization occurs at the beginning of the window to allow time for
retries, if necessary, unless the client's first contact with the server is
after the start time for the event.

You can issue the QUERY STATUS command to display the value for the schedule
randomization percentage. At installation, the value is set to 25 percent.

Set the randomization percentage to a value greater than 0 to prevent
communication errors that can result from a large group of clients
contacting the server simultaneously. If you do experience communication
errors, you can increase the randomization percentage so that client contact
is spread out, thus decreasing the chance for communication overload and
failure.

Privilege Class

To perform this task, you must have system privilege.

Syntax

>>-Set RANDomize--percent--------------------------------------><


Parameters

percent (Required)
     Specifies the percentage of the startup window over which the start
     times for individual clients are distributed. You can specify an
     integer from 0 to 50.

     A value of 0 indicates that no randomization occurs and that all
     clients execute schedules at the beginning of the startup windows.

     A value of 50 indicates that clients are assigned start times that are
     randomly scattered across the first half of each startup window.

     At installation, this value is set to 25, indicating that the first 25
     percent of the window is used for randomization.

     If you have specified DURUNITS=INDEFINITE in the DEFINE SCHEDULE
     command, the percentage is applied to a 24 hour period. For example, a
     value of 25 percent would result in a 6 hour window.

Examples

Task

Set randomization to 50 percent.

Command:
     set randomize 50

Related Commands

Table 238. Commands Related to SET RANDOMIZE
 Command                              Description
 DEFINE SCHEDULE                      Defines a schedule for a client
                                      operation or an administrative
                                      command.
 QUERY STATUS                         Displays the settings of server
                                      parameters, such as those selected by
                                      the SET commands.
 SET SCHEDMODES                       Specifies the central scheduling mode
                                      for the server.