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| Title | Size | Download |
|---|---|---|
| 04-Appendix C Managed Hot Swapping of OCP Network Adapters | 352.32 KB |
Managed hot swapping of OCP network adapters
Restrictions and guidelines
· Contact Technical Support to obtain operating systems that support managed hot swapping of OCP network adapters.
· Make sure the following software version requirements are met:
¡ BIOS: 7.30.06 or later.
¡ HDM3: 2.03 or later.
¡ CPLD: 001 or later.
Procedure
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NOTE: This section uses the OCP network adapter in slot 16 as an example. |
Access the operating system.
Execute the dmidecode -t 9 command to search for the bus address of the OCP network adapter. As shown in Figure 1, the bus address of the OCP network adapter in slot 16 is 0000:31:00.0.
Figure 1 Searching for the bus address of an OCP network adapter by slot number
Execute the echo 0 > /sys/bus/pci/slots/slot_number/power command to power off the network adapter, where slot_number represents the number of the slot where the OCP network adapter resides.
Figure 2 Executing the echo 0 > /sys/bus/pci/slots/slot_number/power command
Identify whether the OCP network adapter has been disconnected:
¡ Observe the OCP network adapter LED. If the LED is off, it indicates that the OCP network adapter has been disconnected.
¡ Execute the lspci –vvv –s 0000:31:00.0 command. In this example, the bus address is 0000:31:00.0. If no output is displayed, it indicates that the OCP network adapter has been disconnected.
Figure 3 Identifying OCP network adapter status
Verify that the network adapter has been disconnected and reinstall the OCP network adapter. In most cases, the OCP adapter will power on automatically after being reinserted. You can wait for about 20 seconds or proceed directly to the next step to execute the command to power on the OCP adapter.
Execute the echo 1 > /sys/bus/pci/slots/slot_number/power command to power on the network adapter, where slot_number represents the number of the slot where the OCP network adapter resides.
Identify whether the OCP network adapter has been connected:
¡ Observe the OCP network adapter LED. If the LED is on, it indicates that the OCP network adapter has been connected.
¡ Execute the lspci –vvv –s 0000:31:00.0 command. In this example, the bus address is 0000:31:00.0. If the command output is displayed, it indicates that the OCP network adapter has been connected.
Figure 4 Identifying OCP network adapter status
Identify whether any exception exists. If any exception occurs, contact Technical Support.
