EMC E20-326 Online Practice Questions and Exam Preparation

EMC E20-326 Online Questions & Answers

• Question 191:

  A customer has a pair of VMAX arrays configured to replicate thin devices at one site to thin devices at another site using SRDF/A. The customer wants to implement TimeFinder/Clone replication of the R1 device on the source array and asks you to confirm this is a supported configuration. What do you advise the customer?

  A. Yes, it is supported.
  B. It is supported only if the precopy option is used.
  C. No, it is not supported.
  D. It is supported only if composite groups are used.
  A. Yes, it is supported.

• Question 192:

  A customer is using virtual provisioning on a Symmetrix VMAX which is being shared for Production and non-production workloads. What can be used to separate the different workloads?

  A. Dynamic Cache Partitioning
  B. Symmetrix Priority Controls
  C. Write Pending Limit
  D. FAST VP
  A. Dynamic Cache Partitioning

• Question 193:

  Refer to the exhibit.

  

  You are considering potential configurations of a new storage system. You need to make decisions that consider different cost-benefit ratios. Which policy applied to the workload provides the best response time for the minimum expenditure?

  A. Moderate Skew
  B. Heavy Skew
  C. Low Skew
  D. Default Skew
  A. Moderate Skew

• Question 194:

  A customer is using SRDF/S to replicate a Symmetrix VMAX at the production site to the VMAX at the DR site. The sites are connected using a dedicated T1 link and are 38 km apart. What will significantly improve the link service time between the 2 sites?

  A. Upgrade to a faster link.
  B. Decrease the number of RA ports.
  C. Adding cache to both VMAX arrays.
  D. Increase the priority of the high I/O applications on RA ports.
  A. Upgrade to a faster link.

• Question 195:

  When using Timefinder/SNAP, what is true of Save devices?

  A. RAID6 is the preferred protection for Save devices.
  B. Save devices store the original track from the source device which is copied on first access.
  C. Each Save device is recommended to be equal to or less than the largest VDEV.
  D. RPQ is required to use RAID1 protection on Save devices.
  C. Each Save device is recommended to be equal to or less than the largest VDEV.

• Question 196:

  Which FAST VP control parameter defines the amount of time FAST VP should wait after a thin device is brought under FAST VP control before performing a data movement?

  A. Initial Analysis Period
  B. Workload Analysis Period
  C. Pool Reserved Capacity
  D. Fast VP Relocation Rate
  A. Initial Analysis Period

• Question 197:

  Refer to the exhibit.

  

  A customer has a Symmetrix VMAX storage array configured with FAST VP using three storage tiers. Policies are active for all storage groups on the array. The customer would like to increase the size of data movement requests. The current configuration of FAST is shown in the exhibit.

  Which parameter should be changed?

  A. Data Relocation Rate
  B. Max Simultaneous Moves
  C. Max Moves per Day
  D. Data Movement Mode
  A. Data Relocation Rate

• Question 198:

  Which statement is true relative to host-level performance measurement?

  A. The host views each logical volume as a separate physical drive.
  B. The host views each logical volume as shared storage.
  C. The host can "see" the I/Os and response time globally.
  D. The host views comprehensive response times.
  A. The host views each logical volume as a separate physical drive.

• Question 199:

  Which factors contribute to response time elongation in an SRDF/S environment?

  A. Write size, Distance and Network Equipment
  B. IOPS, Write size and Distance
  C. Write/s, Distance and Network Equipment
  D. Read/s, Write/s and IO size
  A. Write size, Distance and Network Equipment

• Question 200:

  A customer plans to deploy Oracle on their new Symmetrix VMAX. They are concerned about the performance of the redo log files. You recommend isolating these files to their own set of disks and deploying them on striped metavolumes. Why would you recommend striped metavolumes?

  A. Write pending limit is higher
  B. Actuator contention is reduced
  C. Random read response is improved
  D. Spindle queue depth is increased
  A. Write pending limit is higher