Replace a Controller Riser
A riser board assembly provides network and data-path connections for network
or read and write operations. If the assembly fails, read and write operations
carried by the HBAs will fail as well.
Prerequisites:
•
Before handling a component, touch a grounded surface to discharge any
static electricity.
•
Attach an electrostatic discharge (ESD) wrist strap to your wrist, and stand
on an ESD mat while replacing components.
•
Disconnect any cables connected to the PCIe cards in the riser that must be
replaced.
Each Controller contains three PCI-express (PCIe) risers that are located side by
side at the back of the Controller. The three risers, though similar, are not
interchangeable. Each riser hosts two PCIe3 slots and can accommodate two
PCIe3 host bus adapters (HBAs). The risers are customer replaceable units
(CRUs). Replacing a riser assembly requires you to bring the Controller
offline.
The following figure shows the location of the three risers.
Note:
By design, the risers are mechanically dependent upon each other. Even if
there are no PCIe3 HBAs installed, all risers must be installed.
Figure 77: Riser locations
Legend
1 Riser 1
2 Riser 2
3 Riser 3 with latch
Controller Replacement Procedures
109
