EMC E20-326 : Symmetrix Solutions Design Exam for Technology Architects

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EMC Symmetrix Solutions Design Exam for Technology Architects Sample Questions:

1. You are designing the Symmetrix VMAX architecture for a DAS-to-SAN SQL Server migration. Currently all user databases reside on a single locally-attached disk enclosure, mounted to "M:\". You have decided on RAID-1 protected 15,000 RPM drives for the new SQL environment.
Last week, you configured Perfmon to record the current IOPS load of the databases during the 8-hour business day, Monday through Friday as shown in the exhibit. During an average business day, the transaction log processes 43 GB worth of data.

Following EMC best practices, which discount can be taken from the overall write IOPS when calculating for the database writes?

A) 196
B) 392
C) 989
D) 597

2. In Enginuity 5671 and earlier, how does SDRF/S behave when multiple writes to a device are received?

A) Third write waits while second write is acknowledged.
B) 8 Concurrent writes are supported on a single device.
C) 4 Concurrent writes are supported on a single device.
D) Second write waits while first write is acknowledged.

3. What are the generally recommended RAID protections for Enterprise Flash Drives (EFD), Fibre Channel (FC) and Serial Advanced Technology Attachment (SATA) tiers?

A) EFD - RAID 6 (6+2)
FC - RAID 5 (3+1)
SATA RAID 1
B) EFD - RAID 1
FC - RAID 5 (3+1)
SATA RAID 6 (6+2)
C) EFD - RAID 6 (6+2)
FC - RAID 1
SATA RAID 5 (3+1)
D) EFD - RAID 5 (3+1)
FC - RAID 1
SATA - RAID 6(6+2)

4. What is the functional description for Tier Advisor?

A) A peak performance analysis tool.
B) An interactive performance modeling tool.
C) A tool that helps calculate DA utilization.
D) A tool that recommends the right number of VMAX engines.

5. 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/Snap replication of the R2 device on the target array and asks you to confirm this is a supported configuration. What do you advise the customer?

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

Solutions: