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Administrator Guide 15

OceanStor 5300 V3, 5500 V3, 5600 V3, 5800 V3, and 6800 V3 Storage System V300R003

Routine maintenance activities are the most common activities for the storage device, including powering on or off the storage device, managing users, modifying basic parameters of the storage device, and managing hardware components. This document applies to the system administrators who are responsible for carrying out routine maintenance activities, monitoring the storage device, and rectifying common device faults.
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Changing IP Addresses of Management Network Ports Using a Serial Port

Changing IP Addresses of Management Network Ports Using a Serial Port

Using a serial port to modify IP addresses of management network ports requires less operations than using DeviceManager. You can directly log in to a storage device through the serial port to modify the IP addresses, and are not required to configure connectivity between the storage device and the temporary maintenance terminal used for initial configuration.

Prerequisites

The maintenance terminal has been connected to the serial port on the storage device through a serial cable.

Precaution

When changing the IP address of the management network port, note the following:
  • The maintenance terminal and storage device must be interconnected through a serial port.
  • (Applicable to V300R003C00/V300R003C10) For a 2 U controller enclosure (5300 V3/5500 V3), the default IP addresses of the management network ports on controllers A and B are respectively 192.168.128.101 and 192.168.128.102, and the default subnet mask is 255.255.255.0. For a 3 U or 6 U controller enclosure (5600 V3/5800 V3/6800 V3), the default IP addresses of the management network ports on management modules 0 and 1 are respectively 192.168.128.101 and 192.168.128.102, and the default subnet mask is 255.255.0.0.
  • (Applicable to V300R003C20) For a 2 U controller enclosure (5300 V3/5500 V3), the default IP addresses of the management network ports on controllers A and B are respectively 192.168.128.101 and 192.168.128.102, and the default subnet mask is 255.255.0.0. For a 3 U or 6 U controller enclosure (5600 V3/5800 V3/6800 V3), the default IP addresses of the management network ports on management modules 0 and 1 are respectively 192.168.128.101 and 192.168.128.102, and the default subnet mask is 255.255.0.0.
  • The IP addresses of management network ports and internal heartbeat IP addresses must be on different network segments. Otherwise, route conflicts may occur. The default internal heartbeat IP addresses are 127.127.127.10 and 127.127.127.11, and the subnet mask is 255.255.255.0. In addition, for a dual-controller system, you cannot use IP addresses that belong to the 127.127.127.XXX network segment.
    NOTE:
    • Heartbeats are the packets, requiring no acknowledgement, transmitted between two devices. The device can judge the validity status of the peer device. Heartbeat supports node communication, fault diagnosis, and event triggering.
    • 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 addresses of both management network ports and those of maintenance network ports must be on different network segments. Otherwise, route conflicts may occur. The default IP addresses of maintenance network ports are 172.31.128.101 or 172.31.128.102, and the subnet mask is 255.255.0.0. You cannot use IP addresses that belong to the 172.31.XXX.XXX. You are advised to only connect the management network port to the network.
  • By default, management network port IP addresses and service network port IP addresses cannot reside on the same network segment. You can run the change port eth_network_segment switch=on command to allow these IP addresses to reside on the same network segment. For details, see OceanStor 5300 V3&5500 V3&5600 V3&5800 V3&6800 V3 Storage System V300R003 Restricted Command Reference.
    NOTE:

    This operation may cause services that actively connect to external servers unavailable. Such services include SNMP, Syslog, email, FTP, AD, NIS, LDAP, and DNS.

Context

After connecting the controller enclosure to the maintenance terminal by using a serial cable, you can log in to the storage system by using any type of remote login software (This document uses the PuTTY software as an example).
NOTE:
  • This document uses the PuTTY software as an example. You can download the PuTTY software from the http://www.chiark.greenend.org.uk.
  • You are advised to use the latest version of PuTTY, otherwise you may fail to log in to the storage system.

Procedure

  1. Run PuTTY.

    The PuTTY Configuration dialog box is displayed, as show in Figure 2-1.

    Figure 2-1  PuTTY Configuration dialog box

  2. Set Connection type to Serial. In the Serial line text box, enter the name of the serial port that connects the maintenance terminal to the storage system, for example, COM1. In Speed, enter 115200.

    You can query the serial port that connects the maintenance terminal to the storage system as follows (Windows 7 is used as an example):
    1. Right-click the icon of Computer on the desktop of the maintenance terminal and choose Manage from the shortcut menu.
    2. In the navigation tree of the Computer Manager dialog box, choose System Tools > Device Manager.
    3. Click Ports. The serial port that connects the maintenance terminal to the storage system, for example, COM1.

      There may be multiple serial port names, such as COM1, COM2, and COM3, on the maintenance terminal. Try these ports until you can successfully log in to the storage system.

  3. Log in to the serial port.
    1. Click Open.

      If the connectivity between the maintenance terminal and controller is normal, information similar to Figure 2-2 is displayed.

      Figure 2-2  Successful connection between the controller and the maintenance terminal

    2. Enter the user name and password.

      NOTE:
      • The default user name for the storage system is admin, and the password is Admin@storage.
      • You must change the default login password immediately after you have logged in to the storage system for the first time and periodically change your login password in the future. This reduces the password leakage risks. For details about how to change a password, see Changing Password (Applicable to V300R003C00/V300R003C10).
      • For security reasons, entering a password displays no local echo.
      If the login is successful, the following message is displayed.
      Authorized users only. All activity may be monitored and reported.
      
      WARNING: You have accessed the system.
      You are required to have a personal authorisation from the system administrator before you use this computer. Unauthorised access to or misuse of this system is prohibited.
      
      
      System Name       : xxxx
        Health Status   : Normal
        Running Status  : Normal
        Total Capacity  : 20.241TB
        SN              : xxxx
        Location        :
        Product Model   : xxxx
        Product Version : xxxx
        Time            : xxxx-xx-xx/16:13:47 UTC+08:00
        Patch Version   :
      
      NOTE:

      When you log in to different devices, System Name, Product Model and Product Version display different values. Obtain the correct value based on actual conditions.

  4. Change the IP address of a management network port.

    Ensure that the IP addresses of the two management network ports have been modified.

    Run the change system management_ip command to change the IP address of the port, as shown in Table 2-1.
    Table 2-1  change system management_ip format and parameters

    Command Format

    Description

    change system management_ip eth_port_id ip_type mask [gateway]

    • eth_port_id

      Port ID. To obtain the value, run show system management_ip.
    • ip_type

      IP address type. Possible values are ipv4_address and ipv6_address.
    • mask

      Subnet mask of the management network port.
    • Optional:

      gateway

      Gateway of the management network port.
    For example:
    Set the IPv4 address, subnet mask, and gateway of management module 0 to 172.16.190.2, 255.255.0.0, and 172.16.0.1.
    admin:/>change system management_ip eth_port_id=CTE0.SMM0.MGMT0 ip_type=ipv4_address ipv4_address=172.16.190.2 mask=255.255.0.0 gateway_ipv4=172.16.0.1
    WARNING: You are going to modify the network address of network port. If you enter an unavailable network address, the O&M interface of the storage system is inaccessible.
    Suggestion: Before you perform this operation, ensure that you have entered an available network address.
    
    Have you read warning message carefully?(y/n)y
    Command executed successfully.
    

    NOTE:
    • For a 6 U controller enclosure, only ports 0 (CTE0.SMM0.MGMT0 and CTE0.SMM1.MGMT0) on the two management modules are managements ports (there are also two management network ports available on a 4-controller enclosure). Therefore, you only need to configure IP addresses for the two management network ports.
    • After changing the IP address of the management network port, you can run the show system management_ip command to verify the IP address information about the controller.
    • Changing the IP address of a management port may disconnect the storage device. Change the management network's IP address only when necessary.

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Updated: 2019-04-17

Document ID: EDOC1000084191

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