Network Appliance NS0-521 Practice Test - Questions Answers, Page 3

For enabling jumbo frames on Cisco Nexus switches for NVMe over TCP with tagged VLANs, the following changes are required:

Modify the Cisco Nexus switches to use an MTU of 9216: Setting the MTU to 9216 ensures that the network can handle jumbo frames, reducing the number of packets needed for large data transfers and thus improving performance.

Modify the appropriate broadcast domain in NetApp ONTAP software to use an MTU of 9216: This setting must match the network configuration to ensure end-to-end support for jumbo frames, which is essential for optimizing performance in NVMe over TCP environments.

For additional information, refer to:

NetApp Documentation on NVMe over TCP

Cisco Documentation on Jumbo Frames

In a two-node NetApp AFF ASA cluster, the recommended minimum number of paths for a SAN environment from the client host perspective is 4. This configuration ensures high availability and load balancing, which are critical for maintaining performance and resilience in a SAN environment. Each host should have at least two paths to each controller to achieve this setup.

For more detailed information, you can refer to:

NetApp SAN Configuration

NetApp All-Flash SAN Array Documentation

To verify that a modified FC port is usable after it has been repurposed from tape backup to FCP SAN, the command system node hardware unified-connect show should be used. This command checks the status and configuration of the unified connect hardware, ensuring that the port is correctly set up for the new function in the SAN environment.

For additional details, see:

NetApp Command Reference

To concurrently serve a namespace over NVMe/FC, a LUN over FCP, a LUN over iSCSI, and an NFS export, only one data SVM (Storage Virtual Machine) is required. NetApp ONTAP allows a single SVM to support multiple SAN and NAS protocols simultaneously, enabling efficient and consolidated management of storage resources.

For more information, refer to:

NetApp Documentation on SVM Configuration

NetApp SVM Best Practices

To verify if jumbo frames have been configured correctly for an iSCSI workload, the command ping -lif <LIF> -vserver <SVM> -destination <IP> -disallow-fragmentation true -packet-size 9000 should be used. This command tests the network path with the jumbo frame size (9000 bytes) and ensures that the packets are not fragmented, confirming that jumbo frames are supported end-to-end.

For more details, you can check:

NetApp Documentation on iSCSI Configuration

NetApp Community Discussions on Jumbo Frames

Based on the output of the command lun igroup show -instance, which lists the protocol as fcp and the initiator as server1.netapp.com, the initiator type is WWPN (World Wide Port Name). In Fibre Channel Protocol (FCP) environments, WWPNs are used to uniquely identify Fibre Channel devices. This contrasts with IQNs used in iSCSI, and NQNs used in NVMe over Fabrics.

For more details, refer to:

NetApp Documentation on Initiators

Active IQ OneCollect is a NetApp tool designed to collect configuration and performance data from your storage environment, including SAN solutions. It can automate the creation of difference reports by capturing the current state of the system and comparing it against a baseline, thereby showing any changes or deviations from the intended design.

For further details, refer to:

NetApp Active IQ OneCollect Documentation

To configure Foreign LUN Import (FLI) on a NetApp HA pair to migrate over FCP LUNs from a third-party array while serving other LUNs, the following actions are required:

Create zoning from the third-party array to the cluster: Proper zoning ensures that the NetApp cluster can communicate with the third-party storage array.

Convert a single FC port on each controller to an FC initiator port: This is necessary for the NetApp system to initiate the connection and access the LUNs on the third-party array.

For more information, refer to:

NetApp Documentation on Foreign LUN Import

To ensure that all network traffic is encrypted for iSCSI on an SVM, configuring IPsec is required. IPsec (Internet Protocol Security) provides end-to-end encryption for IP traffic, ensuring that data transmitted over the network is secure.

For more details, refer to:

NetApp Documentation on Configuring IPsec