Correlate The Pci Slot Locations And Interface Names On R640/R740Xd Servers; R740Xd Single-Node Server Configuration For 10/25Gbe, 2Cpu, Sfp+/Sfp28 - Dell EMC VxFlex Ready Node Operating System Installation Manual

Note: You can also use a second NIC in Slot 2 for a 4*25 GbE option.
Table 14 R740xd single-node server configuration for 10/25GbE, 2CPU, SFP+/SFP28
Description iDRAC
Monitoring
Interface name N/A
(RHEL 7)
Interface name N/A
(SLES)
Slot name N/A
Logical bus N/A
address
Physical port on iDRAC
node
Speed 1GbE
Physical Switch Mgmt Switch
Note: Two or more PCIe slot-based NICs are supported.

Correlate the PCI slot locations and interface names on R640/R740xd servers

Gather and correlate PCI slot locations and interface names in order to build a table with the relevant interface names
for the Linux nodes.
About this task
RHEL 7.x does not use the 70-persistent-net.rules file for Ethernet persistency. Instead, in RHEL 7.x nodes,
the interface names are in the following format: enXXX (for example: enp6s0f0 or eno3).
Other nodes (such as SLES) interface names may be in the following format: ethX (for example: eth0 or eth4).
Note: In the following procedure, the commands are being run on a RHEL 7.x node, so the example outputs include
interface names in the format enXXX.
Procedure
1. Find the correlation between physical slot names and interface names so that you can discover the correlation
between PCI slot locations and interface names in the operating system:
Note: For each of the following commands, write down the output and set it aside for use later in this task:
a. Correlate the physical PCIe slot to a logical bus address:
dmidecode -t slot |egrep "Designation|Current Usage|Bus Address"
This command displays the PCI location of each PCIe card. In the following sample output, the logical bus
address in the last three lines is "0000:05:00.0," which is shown as Current Usage: In Use and
correlates to physical PCIe card slot location "PCIe Slot 6."
VxFlex OS VxFlex OS
Data1 Client Network
Port1
emXX emXX
emXX emXX
Free PCI Free PCIe slot,
slot, left right port
port
Z:0 Z:1
PCI 10/25 PCI 10/25 GbE
GbE Left Right
10/25 GbE 10/25 GbE
Data Data Switch1
Switch1
VxFlex Ready Node Operating System Installation Guide for Linux
Configuring network ports on Linux servers
VxFlex OS VxFlex OS
Client Network Data2
Port2
pXpX pXpX
pXpX pXpX
Free PCIe slot, Free PCIe
right port slot, left
port
Y:1 Y:0
PCI 10/25 GbE PCI 10/25
Right GbE Left
10/25 GbE 10/25 GbE 1 GbE
Data Switch2 Data
Switch2
VxFlex OS Not in
Management Use
Network
emXX emXX
emXX emXX
Integrated NIC 3 Integrated
NIC 4
X:0 X:1
Onboard 1 GbE Onboard
Left 1G Right
1 GbE
Mgmt Switch Not in use
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