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.
• Aach 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 oine.
The following gure 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
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