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| Section | Objectives |
|---|---|
| ONTAP SAN implementation testing and troubleshooting | - Troubleshooting tasks - Testing tasks - Data migration |
| ONTAP SAN solution assessment | - Environmental or physical considerations - Solution design and hardware provisioned to meet customer requirements or expectations - Prerequisites and inventory for the installation of all SAN components during planning - Configuration components using tools |
| ONTAP SAN Concepts | - Data protection concepts - Storage space utilization or management concepts - Switch and host configuration concepts - Storage controller configuration concepts |
| ONTAP SAN implementation and configuration | - Data protection - Switches and host systems - Clustered storage system FCP configuration tasks - SVM configuration tasks - Storage space utilization or management concepts - Clustered storage system NVMe configuration tasks - Clustered storage systems and node configuration tasks - Clustered storage system iSCSI configuration tasks |
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NEW QUESTION # 92
What is used to release space from a NetApp ONTAP LUN when something is removed from within the Windows operating system?
Answer: D
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 # 93
A NetApp AFF node in a four-node cluster has a single FC port on one node, which Is used for legacy tape backup. Tape is no longer needed, and the port is disconnected and modified for reuse in the FCP SAN.
Based on this change, which command will verify that the port is usable?
Answer: B
Explanation:
To verify that a modified FC port is usable after it has been repurposed from tape backup to FCP SAN, the command system node hardware unified-connect show should be used. This command checks the status and configuration of the unified connect hardware, ensuring that the port is correctly set up for the new function in the SAN environment.
For additional details, see:
* NetApp Command Reference
NEW QUESTION # 94
Which two NetApp features enable an administrator to limit the number of paths that a host sees to a LUN?
(Choose two.)
Answer: A,D
Explanation:
Selective LUN Mapping (SLM) and portsets are ONTAP mechanisms specifically used to control the number of paths visible between hosts and mapped LUNs. SLM automatically limits LUN access to paths through the node that owns the LUN and its HA partner, reducing unnecessary paths in larger clusters. A portset provides additional restriction by defining exactly which FCP or iSCSI LIFs an igroup can use to reach its mapped LUNs. NetApp notes that portsets can be combined with SLM when further path restriction is required.
ALUA identifies optimized and non-optimized paths but does not itself reduce the number of visible paths.
An igroup controls which initiators can access a LUN but does not independently restrict target LIF visibility.
Relevant topics include SLM, portsets, igroups, SAN multipathing, and path-count optimization.
NEW QUESTION # 95
An engineer has a 100 GB volume with the space guarantee set to volume and fractional reserve set to 100.
The Snapshot reserve is disabled. The volume contains two 20 GB LUNs, and each LUN has the space guarantee enabled and is 50% full. The engineer creates a Snapshot copy of the volume, and no data is written or modified after the Snapshot copy is taken.
What is the available space in the volume?
Answer: B
Explanation:
The correct available capacity is 20 GB. Both 20 GB LUNs are space-reserved, so ONTAP reserves their full provisioned capacity rather than only the 10 GB currently consumed in each LUN. The two LUN reservations therefore account for 40 GB. Because the volume uses a 100% fractional reserve and a Snapshot copy exists, ONTAP also reserves sufficient overwrite space for 100% turnover of the reserved objects. That represents another 40 GB. Consequently, 80 GB of the 100 GB volume is committed: 40 GB for the two space-reserved LUNs and 40 GB to guarantee their overwrites. This leaves 20 GB available. NetApp describes fractional reserve 100 as reserving 100% of the space necessary for overwrites of reserved objects. Relevant topics include LUN space reservation, fractional reserve, thick provisioning, and Snapshot overwrite guarantees.
NEW QUESTION # 96
A customer wants to Implement a NetApp AFF system at a small remote site that has two ESXi servers that require SAN storage from the NetApp ONTAP based storage system. The servers will be directly connected, because the customer does not want to deploy any switches.
Which protocol should the customer use?
Answer: A
Explanation:
For a small remote site with two ESXi servers requiring SAN storage and no switches, the recommended protocol is iSCSI. iSCSI allows for direct connectivity between the servers and the NetApp ONTAP storage system using standard Ethernet infrastructure, which is suitable for environments without Fibre Channel switches.
For more information, see:
* NetApp iSCSI Configuration Guide
NEW QUESTION # 97
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