DMXCACHE_DELETEECSA={
N|Y}

N
. PowerExchange does not free ECSA memory. Because allocating shared memory is a complex task and 4096 bytes of memory is a small amount, you can accept the default value, which is N, to permanently retain the ECSA memory.
Y
. PowerExchange frees ECSA memory when data maps caching runs in multiple-jobs mode and no files exist with nonzero use counts in ECSA memory.
To run data maps caching in multiple-jobs mode, set the DMXCACHE_MULTIPLEJOBS statement to Y.