VMAX3 Solutions Expert Exam v1.0
Question 1
A Non-Disruptive (NDM) session is active between a VMAX3 array and a VMAX All Flash array.
What happens during the NDM Cutover operation?
- A. I/O paths to both arrays are active
- B. Paths to the VMAX3 are made inactive
- C. Host discovers additional paths to the arrays
- D. Application"™s storage configuration is replicated
Answer : B
Explanation:
A cutover operation moves the target devices out of pass-through mode, initiates data synchronization from the source to the target and makes the paths to the source array inactive so that all I/Os are being serviced by the target array.
Question 2
XtremIO is part of a company"™s FAST.X environment with a VMAX All Flash array and will remain as part of the configuration. The VMAX All Flash array is configured for SRDF as well. In addition, a large VMware environment is hosted on the XtremIO, however, the VMware datastore devices are not virtualized to the
VMAX All Flash array.
If the company wants to have remote replication for the VMware devices, how can this be accomplished?
- A. Virtualize the VMware datastore devices using incorporation and add to the SRDF configuration
- B. Connect an additional VMAX3 or VMAX All Flash array to the XtremIO array and enable SRDF
- C. Virtualize the VMware datastore devices using encapsulation and add to the SRDF configuration
- D. Enable SRDF on the XtremIO array and add the VMware datastore devices to the configuration
Answer : A
Question 3
What is a characteristic of sequential read I/Os on a VMAX3 array?
- A. Prefetch task will stop when sequential I/O stops
- B. Higher priority than the host I/O
- C. DA will start the prefetch task
- D. tracks are red into cache by the frontend director
Answer : C
Reference:
https://uk.emc.com/collateral/technical-documentation/docu55786-vmax3-service-level-pro-fully-automated-storage.pdf
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Question 4
A VMAX3 with internal tiers of EFD and 10k drives is using FAST.X with XtremIO. How can the existing infrastructure be leverage while minimizing increased storage capacity? in the impl.bin file?
- A. BE_centric
- B. Default
- C. DX.Heavy
- D. FE_centric
Answer : B
Question 5
A VDI deployment is planned for an environment that consists of VMAX3 and XtremIO. The data will have a high degree of deduplication and will require QoS and
VVOL support.
How can the existing infrastructure be leverage while minimizing increased storage capacity?
- A. Use XtremIO for the new deployment
- B. Use FAST.X with XtremIO for the new deployment
- C. Add full capacity required for VMAX3
- D. Add half the capacity required for the VMAX and use compression
Answer : A
Question 6
Based on the exhibit, where is data considered to be in motion?
- A. SAN and replication network
- B. Host, SAN, and arrays
- C. Host and arrays
- D. SAN, arrays, and replication network
Answer : C
Question 7
When FAST.X is used to access five VNX arrays from a single VMAX3, what is the minimum number of DX ports required?
- A. 4
- B. 10
- C. 20
- D. 40
Answer : C
Explanation:
DX directors are configured in dual initiator (DI) pairs like traditional DAs. They are fully redundant like DAs and, when necessary, a failing director fails over to the other, fully functioning director in the DI pair. EMC requires a minimum of four paths to external devices. This means that at least four ports belonging to a single
DX dual-initiator pair must be configured.
Question 8
A server is hosting an online application and is experiencing performance issues. Which component of the architectural layer has the lowest probability of impacting performance?
- A. Operating System
- B. Server
- C. Application
- D. Disk
Answer : A
Question 9
With a response time of 2 ms, the utilization is at 50%. Based on Little"™s Law, what is the new service time if the utilization increases to 80%?
- A. 1ms
- B. 2 ms
- C. 4 ms
- D. 5 ms
Answer : D
Question 10
Refer to the Exhibit.
SRDF/Star has been deployed on VMAX3 arrays. Star protection has been enabled. Where are the active and inactive SDDF sessions located during normal operations?
- A. Site A. Two active sessions Site B. One inactive session
- B. Site A. Two active sessions Site C. One inactive session
- C. Site B. Two inactive sessions Site C. Two inactive session
- D. Site B. Two active sessions Site C. One inactive session
Answer : B
Question 11
A company"™s regulatory controls require all management accounts used by individuals with access to data stored on storage systems must comply with password strength and active duration policy.
What should be used to meet this requirement?
- A. LDAP-SSL
- B. X.509 Certificate
- C. Local Unisphere
- D. Windows Local
Answer : B
Question 12
Refer to the Exhibit.
Cascaded SRDF has been deployed on VMAX3 has been deployed on VMAX3 arrays. The SRDF mode has been set to Asynchronous between Sites A and B.
Which SRDF mode is permitted between Sites B and C?
- A. Adaptive Copy Write Pending
- B. Synchronous
- C. Adaptive Copy Disk
- D. Asynchronous
Answer : C
Question 13
In addition to Storage, Hosts, Performance, and Support, what other Unisphere for VMAX sections are available for selection of an individual VMAX3 array?
- A. Data Protection, Database and System
- B. Replication, Database, and System
- C. Data Protection, databases, and Applications
- D. Data Protection, System, and Applications
Answer : A
Reference: https://uk.emc.com/collateral/TechnicalDocument/docu59483.pdf
Question 14
A host is currently using ports 1d4 and 4d4 in a two-engine VMAX3 and additional LUNs are required for the current host. Current total LUN count for ports 1d4 and 4d4 are 4096 each.
Which ports will follow best practices for increasing LUN count for the application?
- A. 1d4 and 4d4
- B. 1d4 and 4d5
- C. 1d5 and 4d4
- D. 1d5 and 4d5
Answer : B
Question 15
Which Dell EMC VMAX3 point-in-time replication technology allows snapshots to be created without requiring a target volume?
- A. TimeFinder SnapVX
- B. ProtectPoint
- C. SRDF/Asynchronous
- D. Open Replicator
Answer : A