NS0-521 Exam Dumps - Implementation Engineer - SAN ONTAP Exam

When adding 40 more hosts to a two-node NetApp ONTAP cluster that is already hosting 64 SAN hosts, the following actions are necessary to avoid potential performance problems:

Configure additional FC target ports: Increasing the number of Fibre Channel (FC) target ports on the storage nodes will help distribute the I/O load more evenly, reducing the risk of bottlenecks.

Configure additional SAN LIFs: Adding more SAN Logical Interfaces (LIFs) will ensure that the increased number of hosts can connect efficiently, improving load balancing and path management.

These actions help maintain optimal performance and prevent congestion in the SAN environment.

For more detailed guidance, refer to:

NetApp SAN Host Configuration Overview

NetApp Best Practices for SAN​ (NetApp)​​ (NetApp)

To configure SnapMirror active sync across two data centers using FC (Fibre Channel), the required connectivity between NetApp ONTAP clusters is cluster peering. Cluster peering involves establishing a trust relationship between the clusters, allowing them to replicate data seamlessly. This setup ensures that data synchronization and disaster recovery processes are effective and reliable.

For more detailed information, you can check:

NetApp Documentation on SnapMirror and Cluster Peering

When the number of paths exceeds the recommended configuration for SAN deployment, it can cause performance issues. To address this problem, you can:

Use Selective LUN Mapping (SLM): SLM allows you to control which LIFs (Logical Interfaces) are used to access specific LUNs, thus reducing the number of paths and potentially improving performance by aligning with best practice configurations.

Reconfigure the fabric switch zoning: Adjusting the zoning on the fabric switches can help manage and optimize the number of paths, ensuring that there are not too many paths that could lead to inefficient I/O operations and performance degradation.

For more details, refer to:

NetApp SAN Host Configuration

NetApp Best Practices for SAN