IBM System x3950 X6 22In order for an I/O Book to be hot-swappable, all adapters that are installed in the book must supporthot-swap and the operating system must also support hot-swap. These operating systems supporthot-swap:Windows Server 2008 R2Windows Server 2012Windows Server 2012 R2The adapters listed in the following table support hot-swap.Table 11. Adapters that support hot swapPart number Feature code Description00D8540 A4XH Emulex Dual Port 10GbE SFP+ VFA IIIr for IBM System x49Y7960 A2EC Intel X520 Dual Port 10GbE SFP+ Adapter for IBM System x49Y7970 A2ED Intel X540-T2 Dual Port 10GBaseT Adapter for IBM System x49Y4230 5767 Intel Ethernet Dual Port Server Adapter I340-T2 for IBM System x49Y4240 5768 Intel Ethernet Quad Port Server Adapter I340-T4 for IBM System xThe use of two Optional I/O Books requires six processors to be installed. The usage of all four OptionalI/O Books requires all eight processors to be installed.The following table shows the ordering information for the optional I/O Books.Table 12. I/O Book optionsPartnumberFeaturecodeDescription Maximumsupportedx3950 X644X4049 A4A2 X6 Half-Length I/O Book 444X4051 A4A3* X6 Full-Length I/O Book 4* The Full-length I/O Book can be ordered only as an option. It is not available through CTO because the Full-lengthI/O Book cannot be shipped installed in the server