EBS Volumes and IOPS Flashcards

1
Q

What are the two variants of SSD

A

gp2 - General Purpose - Boot volumes

io1 - Provisioned IOPS - I/O intensives. NoSQL, RDB, low latency.

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2
Q

What does IOPS stand for

A

Input/Output Operations per Second

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3
Q

What does IOPS benchmark?

A

Performance for SSD

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4
Q

What determines the number of IOPS for gp2 and io1 volumes?

A

Volume size

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5
Q

What is the maximum IOPS for non-io1 volumes?

A

10,000 IOPS

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6
Q

What is the minimum IOPS for non-io1 volumes?

A

100

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7
Q

What is the maximum IOPS for io1 volumes?

A

32,000

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8
Q

How is the number of IOPS determined for gp2 volumes?

A

3 IOPS/GB

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9
Q

How is the number of IOPS determined for io1 volumes?

A

50 IOPS/GB

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10
Q

What happens if you reach your IOPS limit?

A
  1. I/O requests will begin to queue

2. Application response may degrade

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11
Q

How large must your volume be to reach the maximum IOPS for non-provisioned IOPS

A

3,334GB

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12
Q

If your volume is at 10,000 IOPS, and you need more, how can this be solved?

A

Change the storage class to provisioned IOPS (io1)

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13
Q

If your volume is 500GB, and your I/O requests are beginning to queue, how should you resolve this issue in the least expensive way?

A

Increase your volume size

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