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  1. Home
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  3. E20-393

EMC E20-393 Exam (page: 2)
EMC Unity Solutions Specialist Exam for Implementation Engineers
Updated on: 31-Mar-2026

Viewing Page 2 of 61
E20-393 PDF 297 Questions

What describes the LUN Snapshot Copy operation?

  1. Parent cannot be a snapshot copy
    Can only copy a detached snapshot
    Has an independent Retention Policy from the parent
  2. Parent can be a snapshot copy
    Can only copy a detached snapshot
    Has an independent Retention Policy from the parent
  3. Parent can be a snapshot copy
    Can copy an attached or detached snapshot
    Inherits the parent Snapshot Retention Policy
  4. Parent cannot be a snapshot copy
    Can copy an attached or detached snapshot
    Inherits the parent Snapshot Retention Policy

Answer(s): B

Explanation:

Note: You can create copies of LUNs by cloning LUNs from the Snapshot copies in a volume. These FlexClone LUNs are readable and writable copies of the LUNs as the LUN existed when the Snapshot copy was created. Before you can clone a LUN, you must create a Snapshot copy (the backing Snapshot copy) of the LUN you want to clone.


Reference:

https://library.netapp.com/ecmdocs/ECMP1368845/html/GUID-E0660F7B-491B-4AA0-A1A8-22B12DC6917D.html



Which technology is used by Unity Snapshots?

  1. Copy on First Write
  2. Inline Deduplication
  3. Redirect on Write
  4. Block Compression

Answer(s): C

Explanation:

The technology used for snapshots of both block and file resources in Unity is called redirect on write.



What is the correct sequence of steps taken by the storage array when an AC power failure is detected?
Select and Place:
Exhibit A:



Exhibit B:

  1. Please refer to Exhibit B for Answers.

Answer(s): A

Explanation:

The Battery Backup Unit (BBU) provides power to the Storage Processor in the event that cabinet power is lost. The BBU is designed to power the SP long enough for the system to store SP cache content to the M.2 SSD device before powering down. The BBU includes sensors which communicate its charge and health status to the SP. In the event the BBU is discharged the SP will disable cache until the BBU has recharged. In the event the BBU has faulted or cannot sustain enough charge, an alert will be generated.


Reference:

https://www.emc.com/collateral/white-papers/h15084-emc-unity-introduction-to-the-unity-platform.pdf



A system administrator is configuring asynchronous remote replication for an existing NAS server and its' file systems on a Unity system. What should the administrator create to ensure all data is replicated for the NAS server and the file system?

  1. Replication sessions on each file system only
  2. Replication sessions for each file system first and then the NAS server
  3. A replication session on the NAS server and then manually create replication sessions on each file system
  4. A replication session for only the NAS server

Answer(s): D

Explanation:

Before File Systems or VMware NFS Datastores can be replicated, the NAS Server must be replicated.



Which Unity feature provides a high bandwidth connection for large file transfers, enables proactive Service Request generation and usage license reporting, and operates on a 24x7 basis?

  1. EMC Service Center
  2. Software Licensing Central
  3. Unisphere Central
  4. EMC Secure Remote Services

Answer(s): D

Explanation:

Benefit from secure, high-speed, 24x7 predictive monitoring and remote repair for your EMC information infrastructure. EMC Secure Remote Services (ESRS) enables EMC Customer Service to identify and proactively resolve potential issues before they can impact your business.
Incorrect Answers:

C: Unisphere Central enables administrators to remotely monitor multiple EMC VNX Series, EMC VNXe Series, EMC CLARiiON CX4 Series, and EMC vVNX storage systems residing on a common network.



Viewing Page 2 of 61



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