z/OS DFSMSdss Storage Administration
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READIOPACING

z/OS DFSMSdss Storage Administration
SC23-6868-01

Read syntax diagramSkip visual syntax diagram
   .-READIOPacing(0)-------------.   
>>-+-----------------------------+-----------------------------><
   '-+-READIOPacing-+--(--nnn--)-'   
     '-RIOP---------'                

READIOPACING specifies the pacing (that is, I/O delay) to be used for DFSMSdss DASD read channel programs. You can use this keyword to allow more time for other applications to complete I/O processing. DFSMSdss waits the specified time before issuing each channel program that reads from DASD.
nnn
Specifies the amount of time in milliseconds. The maximum delay that can be specified is 999 milliseconds.
Note:
  1. If READIOPACING is not specified, there will be no I/O delay.
  2. The additional wait time does not apply to error recovery channel programs.
  3. READIOPACING does not apply to concurrent copy I/O.

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