[Solved] You have an Auto Scaling group with MinSize=2, MaxSize=8, and DesiredCapacity=5.... How should you configure the capacities? | AWS

AWS - Auto Scaling

You have an Auto Scaling group with MinSize=2, MaxSize=8, and DesiredCapacity=5. You want to ensure the group never scales below 4 instances during maintenance. How should you configure the capacities?

ASet MinSize to 4, MaxSize to 5, and DesiredCapacity to 2

BSet MinSize to 4, keep MaxSize at 8, and DesiredCapacity at 5

CSet MinSize to 5, MaxSize to 8, and DesiredCapacity to 2

DSet MinSize to 2, MaxSize to 4, and DesiredCapacity to 4

Step-by-Step Solution

Solution:

Step 1: Identify minimum instance requirement
To never scale below 4, MinSize must be at least 4.
Step 2: Keep MaxSize and DesiredCapacity appropriate
MaxSize 8 allows scaling up, DesiredCapacity 5 keeps target above minimum.
Final Answer:
Set MinSize to 4, keep MaxSize at 8, and DesiredCapacity at 5 -> Option B
Quick Check:
MinSize controls the minimum running instances [OK]

Quick Trick: MinSize sets the minimum instances running at all times [OK]

Common Mistakes:

MISTAKES

Setting DesiredCapacity below MinSize
Reducing MaxSize too low to allow scaling

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How should you configure the capacities?

Step 1: Identify minimum instance requirement

Step 2: Keep MaxSize and DesiredCapacity appropriate

Final Answer:

Quick Check:

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