EMC E20-393 Exam Questions
Unity Solutions Specialist Exam for Implementation Engineers (Page 6 )

Updated On: 21-Feb-2026

What is the maximum number of LUNs in a Consistency Group?

  1. 25
  2. 50
  3. 75
  4. 100

Answer(s): C

Explanation:

The consistency group (CG) term is used for grouping several LUNs together in order to ensure write-order consistency over several volumes. Each LUN can contain up to 2 TB, and the total supported capacity can be up to 150 TB.


Reference:

https://en.wikipedia.org/wiki/RecoverPoint



Which migration tool can be used to move file data a Unity storage array in both NFS and CIFS/SMB protocols?

  1. EMC Select Datadobi
  2. Unity Async Replication
  3. rsync
  4. EMCopy

Answer(s): D

Explanation:

EMcopy will work to copy the data from Solaris host to export CIFS and NFS including the security configuration.


Reference:

https://it.toolbox.com/question/copy-data-from-nfs-shared-file-systems-to-nfs-and-cifs-101012



Which step must be completed prior to performing the initial configuration of a UnityVSA system and creating the first storage pool?

  1. Create an ESXi host profile
  2. License the system for NFS and SMB support
  3. Add vDisks to the storage appliance
  4. Install license keys for thin provisioning

Answer(s): C

Explanation:

UNITY VSA STORAGE POOL CREATION
1. Under the Storage Pool Section go to Pools. Select the + to start the “Create Pool Wizard”.
2. Name the Pool
3. Assign a Tier to each Virtual Disk attached to the VSA. You have Extreme, Performance and Capacity.

Etc.


Reference:

https://samshouseblog.com/2016/06/08/unity-vsa-storage-pool-creation/



What is the minimum and maximum recovery point objectives (RPO) configurable when using Unity native asynchronous replication?

  1. Minimum= 5 minutes
    Maximum= 24 hours
  2. Minimum= 5 minutes
    Maximum= 48 hours
  3. Minimum= 1 minute
    Maximum= 24 hours
  4. Minimum= 1 minute
    Maximum= 48 hours

Answer(s): A

Explanation:

Recovery Point Objective (RPO) is an industry accepted term that indicates the acceptable amount of data, measured in units of time, that may be lost in a failure. When you set up an asynchronous replication session, you can configure automatic synchronization based on the RPO. You can specify an RPO from a minimum of 5 minutes up to a maximum of 1440 minutes (24 hours).


Reference:

https://www.emc.com/dam/uwaem/documentation/unity-p-replication-config.pdf (page 7)



A system administrator has added a new Unity storage array to their environment. The administrator wants to migrate block data from vVNX running in their VMware environment to a UnityVSA. In addition, the administrator needs to migrate the block data from an older CLARiiON storage array to the new Unity storage array.

Which single block migration option will work for both the virtual and hardware storage devices?

  1. SAN Copy Push
  2. VPLEX
  3. Host-Based LVM
  4. RecoverPoint

Answer(s): A

Explanation:

You move Block storage from a CLARiiON CX or VNX Series storage system to an EMC Unity system.

Note: Clariion (styled CLARiiON) is a discontinued [1] SAN disk array manufactured and sold by EMC Corporation, it occupied the entry-level and mid-range of EMC's SAN disk array products. In 2011, EMC introduced the EMC VNX Series, designed to replace both the Clariion and Celerra products.

Incorrect Answers:
D: EMC RecoverPoint protects storage arrays LUNs and provides concurrent local and multiple remote data replication copies with continuous data protection for any PiT Recovery. It supports EMC VMAX 10K, 20K, 40K, VNX, VNXe3200, VNX-F, VPLEX, XtremIO and 3rd party arrays via VPLEX.






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