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| Section | Objectives |
|---|---|
| ONTAP SAN Concepts | - Data protection concepts - Switch and host configuration concepts - Storage space utilization and management concepts - Storage controller configuration concepts |
| ONTAP SAN Implementation and Configuration | - Storage Virtual Machine (SVM) configuration - Clustered storage systems and node configuration - Switch, host, data protection and storage management - NVMe configuration - iSCSI configuration - Fibre Channel Protocol (FCP) configuration |
| ONTAP SAN Implementation Testing and Troubleshooting | - Connectivity and performance troubleshooting - Data migration tasks - Implementation validation and testing tasks |
| ONTAP SAN Solution Assessment | - Environmental and physical considerations - Prerequisites and inventory for SAN components - Installation planning and configuration tools - Solution design and hardware provisioning |
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NEW QUESTION # 87
What is used to release space from a NetApp ONTAP LUN when something is removed from within the Windows operating system?
Answer: C
Explanation:
SCSI UNMAP is the mechanism used by a supported SAN host to inform ONTAP that logical blocks within a thin-provisioned LUN are no longer required. Deleting files within Windows normally changes the filesystem
' s allocation information; without storage reclamation, ONTAP may still regard the associated LUN blocks as allocated. When LUN space allocation is enabled and the host supports logical block provisioning, Windows can issue SCSI UNMAP commands identifying unused blocks so ONTAP can return that physical capacity to the available storage pool. A SCSI reservation controls device-access coordination and does not reclaim capacity. Snapshot Autodelete manages Snapshot copies, while SnapCenter provides application-consistent data protection and management. Therefore, SCSI UNMAP is the SAN protocol operation responsible for reclaiming blocks released by the Windows filesystem.
NEW QUESTION # 88
A customer has a two-node NetApp ONTAP cluster that Is hosting FC LUNs for 64 SAN hosts. An administrator is tasked to add 40 more hosts to the environment.
What two actions would the administrator need to take to avoid potential performance problems with the environment? (Choose two.)
Answer: A,D
Explanation:
When adding 40 more hosts to a two-node NetApp ONTAP cluster that is already hosting 64 SAN hosts, the following actions are necessary to avoid potential performance problems:
* Configure additional FC target ports: Increasing the number of Fibre Channel (FC) target ports on the storage nodes will help distribute the I/O load more evenly, reducing the risk of bottlenecks.
* Configure additional SAN LIFs: Adding more SAN Logical Interfaces (LIFs) will ensure that the increased number of hosts can connect efficiently, improving load balancing and path management.
These actions help maintain optimal performance and prevent congestion in the SAN environment.
For more detailed guidance, refer to:
* NetApp SAN Host Configuration Overview
* NetApp Best Practices for SAN ( NetApp ) ( NetApp )
NEW QUESTION # 89
A customer Is setting up a four-node NetApp AFF cluster for use with NVMe/TCP and wants to use automatic host discovery.
Which protocol is used for the discovery of controllers?
Answer: B
Explanation:
For automatic host discovery in a four-node NetApp AFF cluster using NVMe/TCP, the protocol used is mDNS (Multicast DNS). mDNS allows for the discovery of controllers and other networked devices without the need for a centralized DNS server, simplifying the setup process in environments that support NVMe over TCP.
For further information, refer to:
* NetApp Documentation on NVMe/TCP
* NetApp Community on Host Discovery
NEW QUESTION # 90
What does an Active/Optimized path mean in a FAS configuration?
Answer: B
Explanation:
In a traditional FAS SAN configuration, ONTAP uses ALUA to distinguish optimized paths from non- optimized paths. Active/Optimized paths are serviced by the controller associated with the aggregate and LUN being accessed. These paths provide the preferred I/O route because data does not need to be forwarded through another controller. Paths through the HA partner remain available but are normally Active/Non- Optimized and are used when optimized paths become unavailable. NetApp host configuration guidance explicitly describes AFF and FAS systems as having higher-priority Active/Optimized paths serviced by the controller where the aggregate resides and lower-priority non-optimized paths served through another controller. Round-robin is a host multipathing policy and does not define ALUA path state. Relevant topics include ALUA, Active/Optimized paths, Active/Non-Optimized paths, FAS multipathing, and HA architecture.
NEW QUESTION # 91
What Is a recommended setting for using the NetApp ONTAP LUN fractional reserve?
Answer: A
Explanation:
The recommended setting for using the NetApp ONTAP LUN fractional reserve is to set the space guarantee to " volume " . This setting ensures that the required space for overwrites in the volume is reserved, preventing potential write failures when snapshot copies are created. This setup helps in maintaining the performance and reliability of the storage system by ensuring there is always enough space allocated for the LUN.
For further details, you can refer to:
* NetApp Community Discussion on Fractional Reserve
* NetApp Documentation on Space Management
NEW QUESTION # 92
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