Online Access Free E20-816 Practice Test

A data warehouse team is reporting poor performance on their batch reports. The database runs on a Solaris host connected to a DMX-4 array with Fibre Channel drives sized to support a sequential read workload. Which ratio in Performance Manager metrics would be most useful in diagnosing the performance issue?

• A.KBytes read per second vs. I/O per second
• B.Read % vs. Write %
• C.Prefetched tracks per second vs. Tracks not used per second
• D.I/O per second vs. Average sampled read time

Click on the calculator icon in the upper left corner. Refer to the exhibit.

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.
Following EMC best practices, what is the minimum number of spindles required to satisfy the performance needs of the database?

• A.20
• B.18
• C.10
• D.9

During monthly loads of a data warehouse, the customer observes significant increased response time on their OLTP database. Both applications reside on the same tier-1 storage and are replicated using the same SRDF/S links. During these high utilization periods, which tool can be used to give preference to servicing the OLTP database I/O?

• A.Symmetrix Priority Controls
• B.SymQOS
• C.Symm Optimizer
• D.Delta Set Extensions

You are planning a VMAX configuration with FAST VP for a customer's Exchange 2010
environment. The customer requests the database be placed on thin devices and the log files be placed on regular devices. Some of volumes are quite large and will require metavolumes to meet the capacity requirements.
Which metavolume configuration should you use?

• A.Small meta-member size, even number of members.
• B.Large meta-member size, odd number of members.
• C.Large meta-member size, even number of members.
• D.Small meta-member size, odd number of members.

Four days after configuring FAST-VP on a new VMAX array with EFD, FC and SATA tiers you notice that FAST-VP is moving data, but only 20% of the EFD tier has been consumed. The active FAST-VP policy lists 100% for the EFD tier. What is preventing more data moving to the EFD tier?

• A.Pool Reserve Capacity is set to 20%
• B.Pool Reserve Capacity is set to 80%
• C.Workload Analysis period is set to 7 days
• D.DA Processor utilization is too high