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NetApp Certified Implementation Engineer - SAN Specialist, E-Series NS0-516 Exam Questions
Question 1
When working on a customer's E-Series system to configure LDAP, you realize that you need to complete a Certificate Signing Request to receive a certificate.
In this scenario, when entering the information for the CSR, what information do you need from the controllers themselves? (Choose three.)
Answer : C, D, E
When completing a Certificate Signing Request (CSR) for an E-Series system, you will need:
The controller's geographical location: This is typically the city or locality and the country where the controller is located.
The controller's common name: This is usually the fully qualified domain name (FQDN) of the controller.
The controller's alternate names: These may include additional domain names or IP addresses that the certificate should also cover.
NetApp E-Series SANtricity System Manager Documentation on Security and LDAP Configuration.
Question 2
Which data protection strategy has the most overhead capacity as a percentage of the total capacity?
Answer : A
RAID Levels Overview:
RAID 5: Single parity, moderate overhead.
RAID 6: Dual parity, higher overhead than RAID 5.
RAID 10: Mirroring and striping, highest overhead due to 100% redundancy (mirroring).
Dynamic Disk Pools (DDP): Efficient use of capacity but more overhead than RAID 5.
Overhead Calculation:
RAID 10 has the most overhead because it mirrors all data, effectively using twice the storage capacity.
Capacity Overhead: The overhead in RAID 10 is 50% of the total capacity, meaning if you have 1 TB of usable storage, you need 2 TB of total storage.
Question 3
What is represented by the Headroom graph on the SANtricity System Manager performance tab?
Answer : B
The Headroom graph in SANtricity System Manager shows the remaining performance capability of the physical objects (e.g., disks, SSDs) in the storage system.
This helps in understanding how much additional load the system can handle before reaching its performance limits.
Reference: NetApp SANtricity System Manager User Guide, which explains the performance monitoring features.
Question 4
A junior administrator recently made changes to an E-Series system. As a result of these changes, the management host lost the ability to manage the E-Series system through in-band management, but the host still has access to the E-Series data volumes.
In this scenario, what caused this issue?
Answer : A
If the management host loses the ability to manage the E-Series system through in-band management but still has access to data volumes, the most likely cause is that the access volume was un-mapped. The access volume is crucial for in-band management as it provides a path for management commands.
In-band management relies on this special volume to communicate management commands between the host and the storage system. If the access volume is un-mapped, the management interface on the host will no longer be able to send these commands, even though data volumes remain accessible.
NetApp E-Series SANtricity Storage Manager Documentation
NetApp Knowledge Base Articles
Question 5
When a drive fails in a Dynamic Disk Pool (DDP) with no free capacity, what happens to the data?
Answer : B
In a Dynamic Disk Pool (DDP), the system is designed to handle drive failures efficiently without impacting data availability. When a drive fails within a DDP and there is no free capacity, the data from the failed drive is rebuilt using preservation capacity within the DDP.
Dynamic Disk Pools use distributed sparing, which allows the spare capacity to be spread across all the drives in the pool rather than relying on dedicated hot spare drives. This distribution ensures that the rebuild process starts immediately and can be completed faster than traditional RAID systems because the workload is shared across more drives.
The preservation capacity is essentially reserved space within the DDP that can be utilized in the event of a drive failure to rebuild the data. This approach helps in maintaining redundancy and protecting data integrity even when a drive fails.
NetApp E-Series Storage System Documentation
SANtricity System Manager User Guide
Question 6
You help a customer diagnose a performance issue on an E-Series storage system. You decide to measure the amount of data that is being handled over the span of an hour.
In this scenario, what are you measuring?
Answer : C
Definition of Throughput: Throughput refers to the amount of data transferred from or to the storage system over a specific period. It is measured in units such as MB/s or GB/s.
Relevance to Performance Diagnosis: When diagnosing performance issues on an E-Series storage system, measuring throughput over an hour helps determine the data handling capacity of the system. This metric can reveal whether the system is processing data efficiently or if there are bottlenecks.
Methodology: Tools within the SANtricity System Manager can be used to monitor and log throughput, providing insights into the performance characteristics and potential areas needing optimization.
NetApp E-Series SANtricity System Manager documentation on performance monitoring
NetApp Implementation Engineer - SAN Specialist - E-Series manuals
Question 7
Click the Exhibit button.
Referring to the exhibit, which SAS connector is supported on the NetApp E2800 E-Series family?
Answer : A
Identify SAS Connector Types: The exhibit shows different types of SAS connectors labeled 1 through 4.
Review E2800 Documentation: According to NetApp E2800 E-Series documentation, the supported SAS connector for expansion and host connectivity is type 1, which is the mini-SAS HD (High Density) connector.
Match the Connector: Verify the appearance and dimensions of the connector in the exhibit. Type 1 matches the mini-SAS HD connector used in the E2800 series.
Confirm Selection: Type 1 (0.74 in / 13.8 mm) is the correct choice for the E2800 family based on the physical characteristics and NetApp specifications.
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