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EMC E20-326 Exam Syllabus Topics:
| Section | Objectives |
|---|---|
| Topic 1: Symmetrix / VMAX Architecture | - Symmetrix VMAX system architecture and components
|
| Topic 2: Storage Provisioning and Management | - LUN provisioning and masking concepts
|
| Topic 3: Data Protection and Replication | - Remote replication technologies
|
| Topic 4: Business Continuity Design | - High availability architecture
|
| Topic 5: Performance and Optimization | - Performance analysis
|
EMC Symmetrix Solutions Design Exam for Technology Architects Sample Questions:
1. What can happen if an over-subscribed thin pool becomes full?
A) writes to unallocated extents on TDEV's stay in a queued state until the storage administrator can assign additional capacity.
B) writes to unallocated extents on TDEV's fail and an I/O error is returned. If the host is booting from SAN, this may also result in a server hang condition.
C) writes to unallocated extents on TDEV's continue within cache and the virtual pool is automatically expanded to the needed level.
D) writes to unallocated extents on TDEV's continue within cache and the virtual pool is not automatically expanded to the needed level.
2. What is the EMC recommended network quality for SRDF/A over GigE?
A) Less than 0.01% packet loss
B) Less than 0.25% packet loss
C) Less than 0.1% packet loss
D) Less than 1% packet loss
3. A Symmetrix Customer has an application that runs 24 hours a day, 7 days a week and 365 days a year. They would like to replicate the application data simultaneously to four branch offices on a nightly basis. The branch offices have EMC VNX arrays.
Which solution would you recommend?
A) Use TimeFinder/Snap to replicate the production application. Then use Open Replicator hot push to replicate the VDEVs.
B) Use Open Replicator hot push to replicate the production devices.
C) Use Open Replicator cold push to replicate the production devices
D) Use TimeFinder/Clone to replicate the production application. Then use Open Replicator cold push to replicate the clones.
4. You are designing an SRDF/S solution. Network bandwidth can be purchased in increments of single OC3 (155 Mb/s) links. Data compression is not in use. The workload profile is as follows:
Total I/Os per second = 30,000
Read block size = 4 KB
Write block size = 4 KB
Writes = 30%
How many OC3 links should be recommended?
A) 6
B) 4
C) 2
D) 8
5. A colleague implemented cascaded SRDF for a VMAX technology refresh and site relocation activity.
The colleague reports they shutdown the hosts at production Site A and copied all data to the bunker Site B VMAX. But they are unable to enable SRDF/S between Site B and remote Site C.
What should you advise them?
A) The Site B devices must be converted to use concurrent SRDF.
B) Suspend SRDF/S on the first leg and then enable SRDF/S on the second leg.
C) Enable SRDF/A on the first leg and then enable SRDF/S on the second leg.
D) SRDF/S is not supported on the second leg of a cascaded SRDF implementation.
Solutions:
| Question # 1 Answer: B | Question # 2 Answer: C | Question # 3 Answer: D | Question # 4 Answer: B | Question # 5 Answer: D |





