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| Section | Objectives |
|---|---|
| ONTAP OS | - How ONTAP interacts with external components - ONTAP logging mechanisms - Volume concepts - Supported ONTAP protocols - ONTAP networking concepts - Disk or aggregate concepts |
| NetApp Cloud Data Services | - Components of a hybrid cloud solution - Components of cloud data services |
| Troubleshooting NetApp Hardware and Software | - Performance analysis - Troubleshooting data access problems - How to collect and analyze information |
| Data Protection | - Data protection concepts - Data protection operations |
| NetApp Hardware | - Compute technology - Field Replaceable Units (FRUs) in a NetApp system - Hardware replacement process - Storage hardware technology |
| Active IQ | - Using Active IQ for support and diagnostics |
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NEW QUESTION # 24
Click the Exhibit button.
Your SAN customer is experiencing database latency, that is backed by an AFF A300 cluster.
The LUNs are connected using a 16Gb fabric. Referring to the exhibit, which two steps would you take to determine theissue? (Choose two.)
Answer: B,D
Explanation:
Looking at the qos statistics workload latency show output, the latency breakdown across workloads shows that the Network column consistently accounts for the vast majority of total latency (e.g., 603.00us, 266.00us, 253.00us, 249.00us, 219.00us, 193.00us), while the Disk column shows 0ms across virtually all workloads. This tells us:
- The backend storage (SSDs on the AFF A300) is not the source of the latency - disk service time is negligible/zero.
- The latency is occurring in the front-end network path - i.e., between the host and the controller, over the FC fabric.
Since the LUNs are connected via a 16Gb FC fabric, and the "Network" latency component is dominant, you'd want to investigate both ends of that FC data path:
Determine if there are issues on the hosts - Check host-side HBA configuration, queue depths, multipathing (MPIO/ALUA) settings, driver/firmware issues, or host CPU/resource constraints that could be causing slow I/O acknowledgment or retries, contributing to the network latency seen.
Investigate the switch for underruns or other problems - Since this is an FC SAN environment, the fabric switch itself is a common source of front-end network latency - issues such as CRC errors, link resets, buffer credit exhaustion, port underruns/overruns, or ISL congestion can all significantly inflate the "Network" latency component shown in the QoS statistics.
Reference: https://docs.netapp.com/us-en/ontap/performance-admin/
NEW QUESTION # 25
You have determined that an SFP+ has failed on one of your storage controllers.
In this scenario, what do you use to determine which SFP+ should be replaced by NetApp Support?
Answer: D
Explanation:
Hardware Universe is the correct tool to determine the replacement SFP+ part for a storage controller. Active IQ can identify system health, risks, and advisories, but part selection for a specific platform and port type is a hardware compatibility and FRU identification task. The Interoperability Matrix Tool validates software, host, protocol, and component interoperability, not the correct replacement transceiver for a controller slot. The Documentation Center provides procedures and platform manuals but is not the authoritative lookup tool for supported hardware components and part options across platforms. Hardware Universe provides platform- specific details such as ports, adapters, shelves, cables, optical modules, and supported configurations. For NCSE field support, replacing an SFP+ requires matching platform, adapter, speed, media type, and supportability. Therefore, Hardware Universe is the correct source for determining which SFP+ NetApp Support should replace. References/topics: NetApp Hardware Universe, FRU identification, controller port support, optical module compatibility, and platform hardware lookup.
NEW QUESTION # 26
Your customer's MetroCluster has generated a "DISK REDUNDANCY FAILED" message.
Netapp-EmA:
Tue Jan 14 04:12:12 CET [netapp-EmA:cf.rv.notConnected:error]: HA interconnect: Connection for 'cfo_rv' failed.
Tue Jan 14 04:12:13 CET [netapp-EmA:rv.connection.torndown:info]: HA interconnect: cfo_rv1 is torn down on NIC 1.
Tue Jan 14 04:12:13 CET [netapp-EmA:cf.rv.notConnected:error]: HA interconnect: Connection for 'cfo_rv'1 failed.
Tue Jan 14 04:12:15 CET [netapp-EmA:rv.connection.torndown:info]: HA interconnect: cfo_rv2 is torn down on NIC 1.
Tue Jan 14 04:12:18 CET [netapp-EmA:cf.rv.notConnected:error]: HA interconnect: Connection for 'cfo_rv'2 failed.
Tue Jan 14 04:12:19 CET [netapp-EmA:bridge.removed:info]: FC-to_SAS bridge siteB_2:13.126L0 [ATTO FibreBridge6500N 1.61] S/N [FB7500N111161] was removed Tue Jan 14 04:12:19 CET [netapp-EmA:bridge.removed:info]: FC-to_SAS bridge siteB_2:5.126L0 [ATTO FibreBridge6500N 1.61] S/N [FB7500N111160] was removed Netapp-EmB:
Tue Jan 14 04:12:12 CET [netapp-EmB:cf.rv.notConnected:error]: HA interconnect: Connection for 'cfo_rv' failed.
Tue Jan 14 04:12:12 CET [netapp-EmB:rv.connection.torndown:info]: HA interconnect: cfo_rv2 is torn down on NIC 1.
Tue Jan 14 04:12:13 CET [netapp-EmB:rv.connection.torndown:info]: HA interconnect: cfo_rv1 is torn down on NIC 1.
Tue Jan 14 04:12:13 CET [netapp-EmB:cf.rv.notConnected:error]: HA interconnect: Connection for 'cfo_rv'1 failed.
Tue Jan 14 04:12:18 CET [netapp-EmB:cf.rv.notConnected:error]: HA interconnect: Connection for 'cfo_rv'2 failed.
Tue Jan 14 04:12:19 CET [netapp-EmB:bridge.removed:info]: FC-to_SAS bridge siteA_2:13.126L0 [ATTO FibreBridge6500N 1.61] S/N [FB7500N111167] was removed Tue Jan 14 04:12:19 CET [netapp-EmB:bridge.removed:info]: FC-to_SAS bridge siteA_2:5.126L0 [ATTO FibreBridge6500N 1.61] S/N [FB7500N111164] was removed Referring to the messages shown in the exhibit for each node, which component is causing the problem?
Answer: D
NEW QUESTION # 27
A customer discovers fault lights on both HA interconnect links in a 2-node cluster. The customer is concerned about the cluster's ability to serve data.
Which statement is true in this scenario?
Answer: C
NEW QUESTION # 28
You want to aggregate throughput for a single LIF across several physical ports.
In this scenario, which two ONTAP features would accomplish thisgoal? (Choose two.)
Answer: A,C
NEW QUESTION # 29
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