You Are Sizing a Storage System for a Response-Sensitive Database

question 31

Multiple Choice

You are sizing a storage system for a response-sensitive database application in a VMware environment. Which two statements are true in this scenario? (Choose two.)

• A) The cache hit percentage is determined primarily by the amount of cache provided by the storage system.
• B) The peak load requirements of the database and filesystem is a key factor in determining the resources required to meet response time requirements.
• C) The server virtualization will change the I/O profile of the application as viewed by the storage.
• D) Sizing estimations for a database workload should be based on a steady state and then an extra 10% resources for headroom should be added.

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Definitions:

Rate-Limiting

Describes the slowest step in a chemical reaction pathway or process, which determines the overall reaction rate.

Exothermic

A chemical reaction that releases energy by light or heat.

Rate Equation

An expression that describes how the rate of a chemical reaction depends on the concentration of the reactants.

Reaction Rate

The speed at which reactants are converted into products in a chemical reaction, typically measured in moles per liter per second.