Changing Network Bonding Mode in HyperScale

Please note for Mode=4 (LACP) to work, the Ethernet switches in the customers’ environment need to be configured to support LACP.

Assuming the required switch setup is in place and Mode will be “4” (LACP) for both bonds, here are the steps:

1. Place a HyperScale node in “Maintenance Mode”
2. Login to the HyperScale node as root
3. Stop Commvault Services: commvault stop
4. Change directory to network configuration scripts area: cd /etc/sysconfig/network-scripts
5. Edit ifcfg-bond0 & ifcfg-bond1 files to include the following line in the end:
   BONDING_OPTS=”fail_over_mac=active mode=4 miimon=100”`
6. Restart network services on the node:
   systemctl restart network
7. Confirm bonds are set to mode 4: Check for the line “Bonding Mode:” Should say LACP cat /proc/net/bonding/bond0 & cat /proc/net/bonding/bond1
8. Restart Commvault Services:
   commvault start
9. Remove the HyperScale node from “Maintenance Mode”
10. Do above steps on all nodes in the storage-pool, one node at a time.