Netapp NS0-185 - NetApp Storage Installation Engineer - ONTAP Professional Exam

The AutoSupport history output shows multiple transport attempts usingSMTP, HTTP, and HTTPS, with SMTP being re-queued, HTTP ignored, and HTTPS failed. This indicates that AutoSupport is enabled and functioning at the configuration level, but the delivery mechanism is being blocked or restricted by the customer’s network infrastructure.

SMTP failures commonly occur when mail servers block large attachments or require explicit whitelisting of sending systems. Since full AutoSupport messages include large log bundles, mail servers often reject or delay these messages unless the sending nodes are explicitly allowed. Therefore,whitelisting the nodes on the mail serverdirectly addresses the SMTP delivery issue.

Additionally, NetApp installation best practices recommendHTTPS as the preferred AutoSupport transport protocolbecause it bypasses mail server limitations and is more reliable for large payloads. Switching the transport protocol to HTTPS avoids SMTP attachment-size restrictions entirely and ensures successful delivery when outbound HTTPS access is allowed.

Enabling AutoSupport on both nodes is not relevant because the output confirms AutoSupport is already active. Excluding nodes from attachment-size limits is not a supported ONTAP action.

Thus, the two correct actions are tochange the transport protocol to HTTPSandwhitelist the nodes on the mail server.

Node management LIFs are used to manage individual nodes within an ONTAP cluster. These LIFs are designed to remain on the node they manage and are not intended to move during failover events.

By default, a node management LIF uses thelocal-onlyfailover policy. This ensures that the LIF remains bound to ports on the same node and does not migrate to other nodes. This behavior preserves administrative clarity and prevents confusion when accessing node-specific management interfaces.

Other failover policies, such as broadcast-domain-wide or sfo-partner-only, are used for data or cluster management LIFs where mobility is required for availability. System-defined is not a failover policy type.

Therefore, the correct answer isC (local-only).

NetApp rack unit (U) sizing is defined per shelf model:

DS2246 = 2U each → 2 × 2U = 4U

DS4243 = 4U each → 3 × 4U = 12U

DS4486 = 4U → 4U

Total:4U + 12U + 4U = 20U

Therefore, the correct answer is20U.

Default failover groups are defined bybroadcast domains. Therefore, the LIF fails over to any operational port in the broadcast domain.

Broadcom BES-53248 cluster interconnect switches require aReference Configuration File (RCF)to define supported port roles, speeds, breakout behavior, ISLs, and node-facing ports. By default, only a subset of ports is enabled for cluster connectivity. Ports0/17 through 0/20are not active for node connections unless explicitly configured by the correct RCF.

When new controllers are cabled to ports that are not enabled or correctly configured for cluster interconnect traffic, the ONTAP nodes cannot establish cluster LIF communication and therefore cannot join the cluster. Installing the correctRCFconfigures these ports with the required VLANs, MTU, flow control, and speed settings so that cluster traffic can pass.

A license file is not required for basic cluster interconnect functionality. The Cluster Switch Health Monitor (CSHM) configuration file enables monitoring, not port functionality. Rebooting controllers does not resolve switch-side configuration issues.

Therefore, installing thereference configuration fileis the required corrective action.

NetApp best practices allow mixing NAS protocols (NFS and CIFS) or SAN protocols (FCP and iSCSI) within the same SVM, but not mixing NAS and SAN.