We have a two-node Always On Availability Group set up. Both nodes are on SQL Server 2016 SP3.
Primary server has two 1Gb NICs. Secondary has two 10Gb NICs.
Both primary and secondary have a default gateway configured for all four IPs.
We want to enable a single 10Gb NIC on the primary server and disable the default gateway for one of the IPs on both nodes, following these steps:
- Disable default gateway for one of the IPs on the secondary server
- Failover to secondary
- Disable default gateway for one of the IPs on the primary server
- Configure 10Gb NIC on the primary
- Disable one of the 1Gb NICs on the primary
- Failback to primary
Will the above steps be enough to accomplish the task?
Does the cluster automatically identify the new NIC and reflect it in cluster network details?
Can we run the primary with 1Gb NIC and 10Gb NIC (disabling default gateway for 1Gb NIC IP)?
Reasons for doing this:
- We are upgrading our network from 1Gb to 10Gb, so we want to utilize the 10Gb pipe.
- We are copying backups from prod to DR server and from there to tapes. A couple of our DBs are around 6TB with backups around 500GB-800GB. We want to speed up the copy too. NICs on these boxes are not used.