Ibm N Series N7950T Slot Configuration Rules; N7950T Hot-Pluggable Frus - IBM N Series Hardware Manual

4.2.2 IBM N series N7950T slot configuration rules

The following configuration rules apply to the N7950.
Vertical I/O slots
Vertical slots use custom form-factor cards
– Look similar to standard PCIe
– Cannot put standard PCIe cards into the vertical I/O slots
Vertical slot rules
– Slot 1 must have a special Fibre Channel or SAS system board: Feature Code 1079
(Fibre Channel) and Feature Code 1080 (SAS)
– Slot 2 must have NVRAM8
– Slots 11 and 12:
• Can configure with a special FC I/O or SAS I/O card: Feature Code 1079 (FC) and
• Can mix FC and SAS system boards in slots 11 and 12
– FC card ports can be set to target or initiator
Horizontal PCIe slots
Support standard PCIe adapters and cards:
– 10 GbE NIC (new quad port 1 GbE PCIe adapter for N7950T FC1028)
– 10 GbE unified target adapter
– 8 Gb Fibre Channel
– Flash Cache
Storage HBAs:
– Special-purpose FC I/O and SAS I/O cards, and NVRAM8, are NOT used in PCIe slots

4.2.3 N7950T hot-pluggable FRUs

The following items are hot-pluggable:
Fans
– Two-minute shutdown rule if you remove a fan FRU
Controllers
– Do not turn off PSUs to remove a controller in dual- controller systems
PSUs
– One PSU can run the entire system
– There is no two-minute shutdown rule if one PSU removed
IOXMs are
– Removing the IOXM forces a system reboot
– System will not recognize a hot-plugged IOXM
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IBM System Storage N series Hardware Guide
Feature Code 1080 (SAS)
not
hot pluggable