UPDDELAY start option

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                       (1)     
   .-UPDDELAY--=--60-------.   
>>-+-----------------------+-----------------------------------><
   '-UPDDELAY--=--max_time-'   

Notes:
  1. UPDDELAY is meaningful only if the OSIMGMT=YES start option is also used.

Specifies the maximum time the VTAM® topology agent waits between checking the list of resources in transient states (such as PENDING ACTIVE and PENDING INACTIVE) to determine whether the resources have been in transient states long enough to be sent to the topology manager. If a resource reaches resting state before the interval set by UPDDELAY has expired, the update for that resource is still sent.

By setting a longer interval on the UPDDELAY start option, you can reduce the CPU cycles required to send updates to the topology manager. By setting a shorter interval, you can send updates to the topology manager more frequently. Frequent sending of updates increases the opportunity to discover resources that are hung in transient states.

You can change the value of UPDDELAY with the MODIFY VTAMOPTS command while VTAM is running. If you change the value, the new value takes effect after the time specified on the original value has expired. For example, if the original value for UPDDELAY is 1 hour and you specify 5 seconds for the UPDDELAY start option on the MODIFY VTAMOPTS command, the new value of 5 seconds takes effect after the hour has expired.

The value for UPDDELAY can be expressed as:
n or nS
Specifies the maximum number of seconds in the range 5–65535.
nM
Specifies the maximum number of minutes in the range 1–1092.
nH
Specifies the maximum number of hours in the range is 1–18.