4 IBM eServer zSeries 900 Technical Guide
The z900 general purpose, capacity and Coupling Facility (CF) models are:
z900 models 101 to 109
These nine models are general purpose servers and range from a 1-way to 9-way
symmetrical multiprocessor (SMP). The servers have a 12-PU MCM, two memory buses, and
can support up to 32 GB processor storage (entry storage is 5 GB). The PU has a cycle time
of 1.3 nanoseconds (ns). These models can easily upgrade from one model to the next
through CUoD or CIU, and support CBU. Also, there are upgrade paths to the Models 110
through 116, Models 2C1 through 2C9, and Models 210 through 216; however, the upgrades
will require a system outage. Models 101 to 109 have 2 System Assist Processors (SAPs) as
standard ...