Wednesday, May 3, 2023

NetApp Logical Interfaces (LIFs)

NetApp Cluster Mode.

What are lifs and types of lifs :

NetApp Logical Interfaces are where our IP addresses (or WWPNs for Fibre Channel and FCoE) live in NetApp ONTAP systems. Having the IP address applied at the Logical Interface level gives us more flexibility than would be possible if it was applied to a physical port. It allows for the use of Interface Groups and VLANs, and for IP addresses to migrate between different physical ports in case of failure or maintenance.

Multiple LIF's can be placed on the same port, interface group, or VLAN. LIF's can move to other nodes non-disruptively. We can migrate a LIF to another port as an administrator or it could move to a different port because of a failure.

Each individual LIF is owned by and dedicated to a single SVM

There are a few different types of NetApp Logical Interfaces:

 

Node Management LIF - Each node has one LIF which an administrator can connect to for node management. The LIF never leaves that node.

Cluster Management LIF - Each cluster also has a LIF which an administrator can connect to manage the entire cluster. The cluster management LIF can move between different nodes.

Cluster LIF - Two or more cluster LIF's exist per node, they are homed on the cluster interconnect physical ports. This is used for traffic between nodes in the cluster.

Data LIF - Our data LIF's serve client access over our NAS and SAN protocols.

Intercluster LIF - for SnapMirror and/or SnapVault replication we have inter-cluster LIF's which must be created on each node.

 

 

 

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