Configuring Network Bonding For Data Protection Network

Updated

Configure the network bonding for the Data Protection network.

Before You Begin

Obtain the following IP addresses before you start:

Entity

IP Address

Bonded public (data protection network) IP address

Data protection Netmask

Data Protection Gateway

Data Protection DNS Servers

Procedure

  1. Power on the nodes.

    Recommended: Power on 3 un-configured nodes at a time. (If you have more than 3 un-configured nodes, you can add the other nodes later.)

    Tip:

    • Press <Alt> + <Ctrl> + <F2> if the login prompt is not displayed.

    • Note down the serial number (Hostname) for the node. This will be useful to identify the node during setup.

  2. Login to a node using the following default credentials:

    Login: root

    Password: cvadmin

    Note: This password can be changed during setup.

  3. Navigate to the following folder:

    /opt/commvault/MediaAgent
  4. Execute the cvnwlacpbond.py with appropriate parameters to setup the bonding.

  5. Restart the network service to create the bonding with the appropriate parameters using the following command:

    systemctl restart network
  6. Repeat these steps in the other nodes.

Examples

Help to Run the Bonding modes

Use the following command to display help:

./cvnwlacpbond.py -h

The following output will be displayed:

usage: cvnwlacpbond.py [-h] [-c] [-m {802.3ad,active-backup}] [-t {dp,sp}]

[-i IP] [-f IFACE IFACE] [-n NETMASK] [-g GATEWAY]

[-d DNS [DNS ...]] [-v VLANID] [-nr] [-s] [-r]

Tool to augment and validate network settings for HyperScale

optional arguments:

-h, --help show this help message and exit

Configure Network:

-c, --configure Option to configure network

-m {802.3ad,active-backup}, --mode {802.3ad,active-backup}

Mode of bonding. Defaults to 802.3ad

-t {dp,sp}, --nwtype {dp,sp}

Type of network. Defaults to Data Protection

-i IP, --ip IP IP address of the interface

-f IFACE IFACE, --iface IFACE IFACE

Interfaces to use for configuring the bond

-n NETMASK, --netmask NETMASK

Netmask IP of the interface

-g GATEWAY, --gateway GATEWAY

Gateway IP for the interface to connect to

-d DNS [DNS ...], --dns DNS [DNS ...]

DNS IPs for the interface to configure with

-v VLANID, --vlanid VLANID

Tagged VLAN ID in case where IP needs to be assigned

to tagged VLAN

-nr, --nonroutable Data Protection network on a flat network. This will

not mandate a gateway to be provided

-s, --suppress Suppress link validation while configuring the

interface

Restore network files:

-r, --restore Restore network files from the initial boot time

Note:

  • Multiple DNS servers can be provided for the -d option, using space as the delimiter.

  • The -nr option can be used to setup an IP address to a network interface that is not routable through a gateway network.

Configuring Active-Backup Bonding on Data Protection Network

Use the following options to set mode 1 (active-backup bonding) for Data Protection network:

./cvnwlacpbond.py -c -m active-backup -t dp -i <Bonded IP for public data protection network> -n < Data Protection Netmask IP> -g <Data Protection Gateway IP> -d <Data Protection DNS Server IP1> <Data Protection DNS Server IP2>

For example:

./cvnwlacpbond.py -c -m active-backup -t dp -i 10.11.11.61 -n 255.255.255.0 -g 10.11.11.1 -d 10.11.11.21 10.11.11.22

The following output will be displayed:

Arguments entered: {'nwtype': 'dp', 'configure': True, 'ip': '10.11.11.61', 'netmask': '255.255.255.0', 'mode': 'active-backup', 'dns': ['10.11.11.21', '10.11.11.22'], 'validate': False, 'gateway': '10.11.11.1'}

Creating network config files for Data protection network..

Processing file: /opt/commvault/MediaAgent/ifcfg-scripts/lacp/ifcfg-eno3...

Processing file: /opt/commvault/MediaAgent/ifcfg-scripts/lacp/ifcfg-enp134s0f0...

Processing file: /opt/commvault/MediaAgent/ifcfg-scripts/lacp/ifcfg-bond1...

All network config files created successfully..

Configuring LACP Bonding on Data Protection Network

Use the following options to set mode 4 (LACP bonding) for Data Protection network:

./cvnwlacpbond.py -c -m 802.3ad -t dp -i <Bonded IP for public data protection network> -n < Data Protection Netmask IP> -g <Data Protection Gateway IP> -d <Data Protection DNS Server IP1> <Data Protection DNS Server IP2>

For example:

./cvnwlacpbond.py -c -m 802.3ad -t dp -i 10.11.11.50 -n 255.255.255.0 -g 10.11.11.1 -d 10.11.11.11 10.11.11.12

The following output will be displayed:

Arguments entered: {'nwtype': 'dp', 'configure': True, 'ip': '10.11.11.50', 'netmask': '255.255.255.0', 'mode': '802.3ad', 'dns': ['10.11.11.11', '10.11.11.12'], 'validate': False, 'gateway': '10.11.11.1'}

Creating network config files for Data protection network..

Processing file: /opt/commvault/MediaAgent/ifcfg-scripts/lacp/ifcfg-eno3...

Processing file: /opt/commvault/MediaAgent/ifcfg-scripts/lacp/ifcfg-enp134s0f0...

Processing file: /opt/commvault/MediaAgent/ifcfg-scripts/lacp/ifcfg-bond1...

All network config files created successfully..