Exam Name: Symmetrix Solutions Expert Exam for Technology Architects
Certification Provider: EMC
Corresponding Certification: Technology Foundations
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EMC E20-816 Exam Syllabus Topics:
| Section | Weight | Objectives |
|---|---|---|
| Data Protection and Replication | 25% | - SRDF (Symmetrix Remote Data Facility) - TimeFinder/Snap, Clone, and Mirror - Business Continuity and Disaster Recovery |
| Symmetrix Configuration and Management | 25% | - Masking, Mapping, and LUN Provisioning - Host Connectivity and PowerPath - Symmetrix Command Line Interface (SYMCLI) |
| Performance Optimization and Troubleshooting | 25% | - Performance Monitoring and Analysis - I/O Workload Optimization - Troubleshooting Common Issues |
| Symmetrix Architecture and Hardware | 25% | - Virtual Provisioning and Storage Virtualization - Directors, Cache, and Backend Components - DMX and VMAX Series Architecture |
EMC Symmetrix Solutions Expert Exam for Technology Architects Sample Questions:
A customer is experiencing heavy memory utilization on an ESXi host that may be causing performance problems. Which VMware memory management technique will allow virtual machines to de-allocate its memory when physical ESXi RAM is insufficient?
- A. Memory swapping
- B. Memory Ballooning
- C. Transparent Page Sharing
- D. Memory Compression
Correct Answer: B 🗳️
A colleague configured new thin volumes on an EMC Symmetrix VMAX in preparation for a customer's Exchange 2010 environment. The Exchange environment will be configured on a 4-node Windows 2008 Failover Cluster. The customer's storage environment is already oversubscribed and the new store volumes are quite large. The colleague wants to avoid fully allocating the thin volumes.
How should you format the volumes?
- A. NTFS using quick format.
- B. FAT32 using quick format.
- C. FAT32 using regular format.
- D. NTFS using regular format.
Correct Answer: A 🗳️
Prior to creating your Symmetrix VMAX architecture for SQL, you are given a Perfmon Log view containing data for your database LUN. The file contains read and write IOPS collected over the past week, at 3-minute intervals.
Which method should you use to determine the correct IOPS target for calculating the appropriate number of RAID corrected spindles?
- A. 90th percentile
- B. 75th percentile
- C. Overall Peak
- D. Overall Average
Correct Answer: A 🗳️
A customer plans to deploy Oracle on their new EMC 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. Actuator contention is reduced
- B. Random-read response is improved
- C. The write-pending limit is higher
- D. Spindle queue depth is increased
Correct Answer: C 🗳️
A customer reports their hosts are performing slowly after migration to a new VMAX array.
You review performance data from the VMAX and note the following:
-I/O sizes are 16 KB.
-The front-end director ports are operating at 1 GB auto-negotiate.
-Several front-end director ports are approaching 100% utilization.
-A few director ports show little or no utilization.
What do you advise the customer?
- A. Add more HBAs to each host accessing the VMAX and consider setting the host I/O size to 8 KB or less.
- B. Rebalance the hosts across all available FA ports and consider setting the front-end director ports to 2 GB or higher.
- C. Reduce the number of hosts that are accessing the VMAX and consider implementing iSCSI connectivity.
- D. Rebalance the hosts across all available FA ports and consider upgrading the SAN switch ports to 2 GB or higher.
Correct Answer: D 🗳️
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