EAS

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   .-EAS--=--256----------------.   
>>-+----------------------------+------------------------------><
   '-EAS--=--number_of_sessions-'   

Specifies the estimated number of sessions that will be active with this logical unit at any given time. This operand is valid only for an independent logical unit (LOCADDR=0). If you code EAS for other logical units, VTAM® ignores it.

If your estimated value is greater than 256, specify the next higher multiple of 256 for better performance.

You can use this operand in conjunction with the BSBUF buffer pool start option to support peak session levels. See Buffer Pool start option for information about BSBUF.