After a node reboot, SMB clients temporarily lose access but automatically reconnect. Which ONTAP feature is responsible?

After a node reboot, SMB clients temporarily lose access but automatically reconnect. Which ONTAP feature is responsible?

• A. LIF migration
• B. SAN path reinitialization
• C. NAS LIF failover
• D. SVM replication

Answer: (C)

NAS LIF failover is responsible. In ONTAP, a NAS LIF (logical interface) provides access to a CIFS/SMB share. If the node housing the active LIF reboots, ONTAP can automatically fail the LIF over to a partner node so the same IP address remains reachable. Because the LIF preserves the client-facing IP, SMB clients can quickly reconnect without manual intervention, giving the appearance of seamless access after the reboot. LIF migration is used for planned moves or load balancing and can involve more disruption if not configured for non-disruptive operation. SAN path reinitialization relates to SAN protocols and wouldn’t directly affect SMB NAS access, and SVM replication is a DR/backup feature that doesn’t impact active client access during a node reboot.

NAS LIF failover is responsible. In ONTAP, a NAS LIF (logical interface) provides access to a CIFS/SMB share. If the node housing the active LIF reboots, ONTAP can automatically fail the LIF over to a partner node so the same IP address remains reachable. Because the LIF preserves the client-facing IP, SMB clients can quickly reconnect without manual intervention, giving the appearance of seamless access after the reboot. LIF migration is used for planned moves or load balancing and can involve more disruption if not configured for non-disruptive operation. SAN path reinitialization relates to SAN protocols and wouldn’t directly affect SMB NAS access, and SVM replication is a DR/backup feature that doesn’t impact active client access during a node reboot.