Free E20-393 Exam Braindumps (page: 2)

Page 2 of 75

A storage administrator is configuring a storage pool on a Unity system containing Flash disks and SAS disks. What tier will the system assign to each of the disk types?

  1. Flash: Extreme Performance
    SAS: Performance
  2. Flash: Performance
    SAS: Capacity
  3. Flash: Extreme Performance
    SAS: Capacity
  4. Flash: Capacity
    SAS: Performance

Answer(s): A

Explanation:

Hybrid pools can have up to 3 tiers (Extreme Performance, Performance, and Capacity). For the Extreme Performance tier, use only SAS Flashdrives.
For the Capacity tier, use only SAS drives.



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



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