EMC E20-326 Online Practice Questions and Exam Preparation

EMC E20-326 Online Questions & Answers

• Question 211:

  You have been working with a customer on a new SRDF/A design and need to validate the configuration using host data. Which tool do you use?

  A. BCSD
  B. SymmMerge
  C. E-lab Advisor
  D. Tier Advisor
  A. BCSD

• Question 212:

  A proposed SRDF/S solution was modeled with BCSD. The model assumed that the Source array had 4 GigE ports. The RA utilization chart shows the maximum utilization at 70%. How many GigE ports should be recommended to ensure a successful implementation?

  A. 6
  B. 4
  C. 5
  D. 8
  A. 6

• Question 213:

  What is best practice for binding thin devices in a FAST VP environment?

  A. Bind all devices to a thin pool within the second highest tier.
  B. Bind all devices to a thin pool within the lowest tier available.
  C. Bind all devices to a pool within the highest tier available.
  D. Bind thin devices only to pools that show sufficient Pool Reserved Capacity.
  A. Bind all devices to a thin pool within the second highest tier.

• Question 214:

  An existing TimeFinder customer migrated from a DMX-3 running Enginuity 5771 to a new VMAX array. They ask you to explain how the TimeFinder/Clone Copy on First Write (COFW) mechanism on the new VMAX array differs from their

  DMX-3 array.

  What do you tell the customer?

  A. The VMAX array uses asynchronous COFW and the DMX-3 array uses synchronous COFW.
  B. Both the VMAX and DMX-3 arrays use synchronous COFW.
  C. The VMAX array uses synchronous COFW and the DMX-3 array uses asynchronous COFW.
  D. Both the VMAX and DMX-3 array use asynchronous COFW.
  A. The VMAX array uses asynchronous COFW and the DMX-3 array uses synchronous COFW.

• Question 215:

  What is a result of designing SRDF/A with inadequate bandwidth?

  A. Elongated cycle time
  B. Lower minimum cycle time
  C. Elongated RTO
  D. Lower cache requirement
  A. Elongated cycle time

• Question 216:

  A proposed SRDF/S solution was modeled with BCSD using host-based data. The BCSD model assumed two-engine VMAX arrays with SRDF Fibre ports. The Compressed Throughput chart shows that the available throughput is greater than the peak throughput. The Volume Exceptions table lists ten devices.

  What should be recommended?

  A. Change the application layout
  B. Use three-engine VMAX arrays
  C. Provide more bandwidth
  D. Turn off software compression on the remote adapters
  A. Change the application layout

• Question 217:

  What is a best practice when configuring a Symmetrix VMAX for optimal performance and cost?

  A. Different drive types are mixed and spread throughout the array.
  B. Dedicated engines have appropriate drive types to meet application needs.
  C. A dedicated array with Enterprise Flash Drives (EFD).
  D. A dedicated array based upon application requirement.
  A. Different drive types are mixed and spread throughout the array.

• Question 218:

  A customer is implementing SRDF/S for an application that generates 16000 8K IOPS with 30% writes. A single RDF port can service 1200 8K IOPS. How many RA should be recommended?

  A. 4
  B. 6
  C. 10
  D. 8
  D. 8

• Question 219:

  What can be used to monitor free space in a thin pool on a Symmetrix VMAX?

  A. The Control Center Host Agent.
  B. The Replication Manager IRCCD daemon.
  C. Tier Advisor.
  D. The event daemon storeventd.
  D. The event daemon storeventd.

• Question 220:

  What is the Write Load Adjustment Factor recommended by Performance Engineering when modeling an SRDF/A solution with BCSD?

  A. 1.5
  B. 2
  C. 3
  D. None
  A. 1.5