Connecting Signal Cables Between Devices (Front-End 10GE Network + Back-End IB Network)
When 10GE switches are used on the front-end network and IB switches are used on the back-end network, storage nodes connect to switches through signal cables. This section describes how to connect a CE6810-48S4Q-EI switch. You can use the same method to connect a CE6810-24S2Q-LI switch.
Prerequisites
- Information about the current network and associated ports has been obtained.
- Required components have been installed in the cabinet.
- PGND cables and power cables have been connected to the components in the cabinet.
- All required tools have been prepared, containing cable ties, diagonal pliers, and ESD gloves or an ESD wrist strap.
Storage Node Port Planning
When the front-end network uses GE network and the back-end network uses 10GE network of OceanStor 9000, ports on storage nodes are shown in Figure 10-61 and their usage is described in Table 10-28.
Port |
Type |
Access Network |
Description |
|---|---|---|---|
B3-0 and B3-1 |
10GE SFP+ Ethernet optical port |
Front-end network |
Connects to the 10GE switches on the user's network through optical fibers. |
A0-0 and A0-1 |
40GE QSFP+ Ethernet optical port |
Back-end network |
Connects to the two IB switches in the basic cabinet through QSFP+ high-speed cables. |
NIC0 |
GE electrical port |
Management and maintenance network |
Connects each NIC0 port on the bottom three nodes in the basic cabinet to the S5752/S5352 switch through one network cable. |
IPMI |
FE electrical port |
Management and maintenance network |
Connects to the S5752/S5352 switches in the basic cabinet through network cables. |
Switch Port Planning
Port |
Type |
Access Network |
Description |
|---|---|---|---|
1 to 16 |
40GE SFP+ Ethernet optical port |
Back-end network |
Each SX6018 switch connects to nodes through 16 ports in sequence.
|
17 and 18 |
40GE SFP+ Ethernet optical port |
- |
Connects two SX6018 switches. |
Port |
Type |
Access Network |
Description |
|---|---|---|---|
1 to 16 |
10/100/1000BASE-T Ethernet port |
Management and maintenance network |
Connect to IPMI ports on storage nodes in sequence. |
45, 46, and 47 |
Connect to NIC0 ports on the first three nodes (nodes 01 to 03 in the basic cabinet) in OceanStor 9000. |
||
48 |
Connects to the user's management and maintenance network. |
Procedure
- Wear an ESD wrist strap or ESD gloves.
- Determine port numbers of the storage node and signal cable connection modes.
- Obtain the required types of cables and label them.
- Install an optical module.
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- Wear an ESD wrist strap or gloves to prevent damaging ESD-sensitive optical modules.
- Do not push an optical module hard if it fails to easily sit in the optical subcard. Try to reversely insert it.
- Do not remove dust-proof caps from optical connectors before connecting optical fibers to optical modules.
- Insert the optical module into an optical port on the subcard until it snaps into place and then raise the handle to lock it up, as shown in Figure 10-64.
- Connect cables according to the attached label.
- To connect a copper cable, hold a copper cable connector in a correct direction when inserting it into a port. When you hear a click, the copper cable is securely connected to the port.
- To remove a copper cable, gently push the cable connector and then pull the handle of the connector. Do not directly pull the cable connector with force, as shown in Figure 10-65.
- After connecting cables to the devices, reserve adequate cable slack for ease of operation on other FRUs.
- Lay out the cables along the mounting bars neatly, use cable ties to bind them, and trim off the excess of cable ties using diagonal pliers.
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