Blend of systems + complex
sysplex (plural sysplexes)
- (computing) A group of connected IBM mainframe systems that share resources.
2010, Mike Ebbers, Dino Tonelli, Jason Arnold, Co-locating Transactional and Data Warehouse Workloads on System z, page 245:When an enclave spans a system boundary in a sysplex, it is called a multisystem enclave.