Storage System Configuration

Configure Ethernet port parameters to ensure proper communication between the storage system and application server.

Note the following items when setting the properties of an Ethernet port:

• The default internal heartbeat IP addresses of a dual-controller storage system are 127.127.127.10 and 127.127.127.11, and those of a four-controller storage system are 127.127.127.10, 127.127.127.11, 127.127.127.12, and 127.127.127.13. Therefore, the IP address of the Ethernet port must not be in the 127.127.127.XXX segment and the gateway address must not be 127.127.127.10, 127.127.127.11, 127.127.127.12, or 127.127.127.13. Otherwise, routing will fail. Internal heartbeat links are established between controllers for these controllers to detect each other's working status. You do not need to separately connect cables. In addition, internal heartbeat IP addresses have been assigned before delivery, and you cannot change these IP addresses.

• The IP address of the Ethernet port cannot be in the same network segment as that of a management network port.
• The IP address of the Ethernet port cannot be in the same network segment as that of a maintenance network port.
• If the Ethernet port connects to an application server, the IP address of the Ethernet port must be in the same network segment as that of the service network port on the application server. If the Ethernet port connects to another storage device, the IP address of the Ethernet port must be in the same network segment as that of the Ethernet port on the other storage device. Add routes if available IP addresses in the desired segment are insufficient.

The following uses OceanStor V3 as an example to describes how to configure IPv4 addresses for Ethernet ports. For details about how to configure IPv6 addresses, see DeviceManager online help.

1. Navigate to the Ethernet Port dialog box and click Modify.
   Figure 5-16 Ethernet port dialog box
   

2. Modify the Ethernet port.
   1. In IPv4 Address, enter an IP address for the Ethernet port.
   2. In Subnet Mask, enter a subnet mask for the Ethernet port.
   3. In MTU (Byte), enter the maximum size of data packet that can be transferred between the Ethernet port and the host. The value is an integer ranging from 1500 to 9216.
   Figure 5-17 Configuring an IP address
   

3. Confirm the Ethernet port modification.
   1. Click Apply.

      The Danger dialog box is displayed

   2. Confirm the information in the dialog box and select I have read and understand the consequences associated with performing this operation.
   3. Click OK.

      The Success dialog box is displayed, indicating that the operation is successful.

   4. Click OK.

This section details how to add initiators to the hosts on the storage system. For other storage configurations, see the Basic Storage Service Configuration Guide corresponding to your storage system.

1. Log in to DeviceManager.
2. Choose Provisioning > Host.
3. Select the target host and click Add Initiator.
   Figure 5-18 Selecting a host
   

4. Select the initiator and click to add it to Selected Initiators.
   Figure 5-19 Adding an initiator
   

5. Click OK.

The initiator properties depend on the operating system and multipathing software used by the hosts. For details, see the storage-side configuration in the multipathing configuration section. After the initiators have been configured, you can scan for LUNs on the hosts to discover storage resources.