Cisco UCS has offered two main server platforms: C-Series (rack servers) and B-Series (blade servers; Cisco has announced End-of-Sale for the B200 M6 blade and UCS 5108 chassis). This guide explains when to use each.
C-Series (Rack Servers)
Standalone rack servers deployed like traditional Dell/HPE servers. Models include C220 M6, C240 M6, C480 ML.
- Standard 19″ rack deployment
- No UCS Fabric Interconnect required (standalone mode)
- Up to 28 drive bays (C240 M6)
- GPU support (C480)
B-Series (Blade Servers)
Blade servers in UCS 5108 chassis, managed by Fabric Interconnect. Models include B200 M6, B480 M5.
- Higher density
- Unified management via UCS Manager
- Integrated networking (no per-blade switches)