Theses servers are a specialized version of ARTWTRN servers presenting only transactions with MAXACTIVE = 1; by contrast, ARTWTRN servers present only transactions with MAXACTIVE > 1.

It is critical and verified by WTR1 servers at boot time that MIN and MAX number of servers are set to 1. The goal of these servers being to guarantee the parallel processing of only one transaction in a group (with MAXACTIVE = 1), to start or let Tuxedo start a few servers offering the same transactions will be self-defeating for WTR1 Servers.

The rest of the configuration and behavior of WTR1 servers are exactly the same as WTRN servers.