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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 "N:\". You have decided on RAID-5 protected 15,000 RPM drives for the new SQL database and RAID-1 for the transaction log.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 87 GB worth of data.

Following EMC best practices, what is the minimum number of spindles that must be allocated for optimal transaction log performance?

A) 8
B) 2
C) 4
D) 10

2. A customer has purchased a new VMAX and is in the process of setting up Open Replicator for a migration. What is a consideration for device pairing for the migration?

A) New Device must be of the same Meta Configuration.
B) New device must be the same size or larger.
C) New Device must be the same size or smaller.
D) New devices must be of the same RAID type.

3. A proposed SRDF/S solution was modeled with BCSD. The model assumed that the Source array had 2 RFs.
The RA utilization chart shows the maximum utilization at 80%. How many RFs should be recommended to ensure a successful implementation?

A) 2
B) 4
C) 3
D) 6

4. The SiRT feature is enabled on the RA in an SRDF/S configuration. When does the host
receive the acknowledgement of a write?

A) When I/O is written to the cache at the R2 site and acknowledgement is received by the R1 site from R2 site
B) Immediately after the I/O is written to R1 cache
C) When I/O is written at R1 site cache and sent to the R2 site
D) When I/O is written to R2 site cache but not acknowledged yet

5. Which TimeFinder feature allows you to use TimeFinder/Mirror commands to perform operations on RAID 6 protected BCVs?

A) TimeFinder/Clone emulation mode
B) TimeFinder/Clone compatibility mode
C) TimeFinder/Mirror compatibility mode
D) Symmetrix Differential Data Facility

Solutions: