15.6.2 RDMA Network Fabric Network Cabling Tables for X8M-8 Racks

This topic contains the tables for RDMA Network Fabric network cabling for Oracle Exadata X8M-8 racks.

The RoCE Network Fabric switches are located in rack units 21 and 23 for Oracle Exadata X8M-8.

The following tables can be used for both flexible and fixed configurations. There are three sets of tables for each Exadata hardware model. One table is for storage servers, which have a 2-slot height (2RU). Another table is for the database servers, which require 5RU. The last table for each hardware model is for the inter-switch cabling, which provides the cabling information for the leaf switches.

Note:

Not all the slots shown in the tables below will be used in a single configuration. Match the rack component with the appropriate slot in the tables below to determine how to cable that particular component.

In the following tables, Un denotes the slot in the rack, where n is the number, such as U23. Pn denotes the RDMA Network Fabric port n, where n is port number, such as P1. The cables used for the RDMA Network Fabric switch are black in color. The following tables are in this section:

  • Table 15-12 RDMA Network Fabric Network Cabling for Oracle Exadata X8M-8 Database Servers
  • Table 15-13 RDMA Network Fabric Network Cabling for Oracle Exadata X8M-8 Storage Servers
  • Table 15-14 RDMA Network Fabric Inter-Switch Cabling for Oracle Exadata X8M-8

The following table lists the rack location, ports and cables for the RDMA Network Fabric connections for database servers in an Oracle Exadata X8M-8 rack.

Table 15-12 RDMA Network Fabric Network Cabling for Oracle Exadata Database Machine X8M-8 Database Servers

From Rack Unit Port To RDMA Network Fabric Switch Port Description

U24

PCIe 5, P2

U23

15

3 meters

U24

PCIe 5, P1

U21

15

3 meters

U24

PCIe 7, P2

U23

16

3 meters

U24

PCIe 7, P1

U21

16

3 meters

U24

PCIe 9, P2

U23

17

3 meters

U24

PCIe 9, P1

U21

17

3 meters

U24

PCIe 11, P2

U23

18

3 meters

U24

PCIe 11, P1

U21

18

3 meters

U16

PCIe 5, P2

U23

19

3 meters

U16

PCIe 5, P1

U21

19

3 meters

U16

PCIe 7, P2

U23

20

3 meters

U16

PCIe 7, P1

U21

20

3 meters

U16

PCIe 9, P2

U23

21

3 meters

U16

PCIe 9, P1

U21

21

3 meters

U16

PCIe 11, P2

U23

22

3 meters

U16

PCIe 11, P1

U21

22

3 meters

U10

PCIe 5, P2

U23

23

3 meters

U10

PCIe 5, P1

U21

23

3 meters

U10

PCIe 7, P2

U23

24

3 meters

U10

PCIe 7, P1

U21

24

3 meters

U10

PCIe 9, P2

U23

25

3 meters

U10

PCIe 9, P1

U21

25

3 meters

U10

PCIe 11, P2

U23

30 or 8

Note: Port 30 is the target only in a configuration with 3 database servers and 11 storage servers. Otherwise, port 8 is the target.

3 meters

U10

PCIe 11, P1

U21

30 or 8

Note: Port 30 is the target only in a configuration with 3 database servers and 11 storage servers. Otherwise, port 8 is the target.

3 meters

The following table lists the location, ports and cables for the RDMA Network Fabric connections for storage servers in an Oracle Exadata X8M-8 rack.

Table 15-13 RDMA Network Fabric Network Cabling for Oracle Exadata Database Machine X8M-8 Storage Servers

From Rack Unit Port To RDMA Network Fabric Switch Port Description

U41

PCIe 1, P2

U23

08

3 meters

U41

PCIe 1, P1

U21

08

3 meters

U39

PCIe 1, P2

U23

09

3 meters

U39

PCIe 1, P1

U21

09

3 meters

U37

PCIe 1, P2

U23

10

3 meters

U37

PCIe 1, P1

U21

10

3 meters

U35

PCIe 1, P2

U23

11

3 meters

U35

PCIe 1, P1

U21

11

3 meters

U33

PCIe 1, P2

U23

12

3 meters

U33

PCIe 1, P1

U21

12

3 meters

U31

PCIe 1, P2

U23

13

3 meters

U31

PCIe 1, P1

U21

13

3 meters

U29

PCIe 1, P2

U23

14

3 meters

U29

PCIe 1, P1

U21

14

3 meters

U14

PCIe 1, P2

U23

23

3 meters

U14

PCIe 1, P1

U21

23

3 meters

U12

PCIe 1, P2

U23

24

3 meters

U12

PCIe 1, P1

U21

24

3 meters

U10

PCIe 1, P2

U23

25

3 meters

U10

PCIe 1, P1

U21

25

3 meters

U08

PCIe 1, P2

U23

26

3 meters

U08

PCIe 1, P1

U21

26

3 meters

U06

PCIe 1, P2

U23

27

3 meters

U06

PCIe 1, P1

U21

27

3 meters

U04

PCIe 1, P2

U23

28

3 meters

U04

PCIe 1, P1

U21

28

3 meters

U02

PCIe 1, P2

U23

29

3 meters

U02

PCIe 1, P1

U21

29

3 meters

The following table lists the location, ports and cables for the RDMA Network Fabric connections for the leaf switches in an Oracle Exadata X8M-8 rack.

Table 15-14 RDMA Network Fabric Inter-Switch Cabling for Oracle Exadata Database Machine X8M-8

From Rack Unit Port To RDMA Network Fabric Switch Port Description

U21

04

U23

04

1 meter

U21

05

U23

05

1 meter

U21

06

U23

06

1 meter

U21

07

U23

07

1 meter

U21

30 or 34

Note: Port 34 is used only in a configuration with 3 database servers and 11 storage servers. Otherwise, port 30 is used.

U23

30 or 34

Note: Port 34 is used only in a configuration with 3 database servers and 11 storage servers. Otherwise, port 30 is used.

1 meter

U21

31

U23

31

1 meter

U21

32

U23

32

1 meter

U21

33

U23

33

1 meter