Having multiple WIJ

with multiple WIJ - one per DB we can achieve much faster data writes to DBs especially on cloud where disks are usually slower than disks on premise. Current processes with 1 WIJ is: write to WIJ (preferably on different disk to get maximum performance) than writes to each database 1 by 1..

with a WIJ per DB the IRIS performance on very busy system might increase significantly (!)