Types of EBS Volumes Flashcards

1
Q

What is the suggested core difference in use cases between SSD EBS volumes and HDD EBS volumes?

A
  • SSD volumes are best where performance is measured in IOPS (number of reads/writes per second)
  • HDD volumes are best where performance is measured in throughput (amount of data read/written per second)
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2
Q

How does Amazon EBS help ensure high availability and durability?

A

Each EBS volume is automatically replicated within its availability zone to protect you from component failure

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3
Q

What are the 5 types of EBS Storage Volumes?

A
  • General Purpose (SSD)
  • Provisioned IOPS (SSD)
  • Throughput Optimized HDD
  • Cold HDD
  • Magnetic (HDD)
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4
Q

What is the use case for General Purpose SSD?

A

It is the EBS volume that handles most workloads, offering a balance of low cost and high performance

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5
Q

What is the API Name for General Purpose SSD?

A

gp2

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6
Q

What is the Maximum IOPS per volume offered for General Purpose SSD?

A

16,000

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7
Q

What is the general use case for Provisioned IOPS SSD?

A
  • A high-performance volume designed for mission-critical apps
  • think Databases
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8
Q

What is the API Name for Provisioned IOPS SSD?

A

io1

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9
Q

What is the Maximum IOPS per volume offered by Provisioned IOPS SSD?

A

64,000

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10
Q

What is the key factor in deciding whether to use General Purpose SSD vs. Provisioned IOPS SSD?

A

Cost vs. Performance

  • General Purpose is lower cost but caps at 16000 IOPS/vol
  • Provisioned IOPS is more expensive but goes up to 64000 IOPS/vol
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11
Q

What is the designed use case for Throughput Optimized HDD?

A
  • Low-Cost (BUT NOT LOWEST-COST) HDD
  • Meant for frequently accessed, throughput-intensive workloads
  • e.g. Big Data / Data Warehouse
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12
Q

What is the API name for Throughput Optimized HDD?

A

st1

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13
Q

What is the Maximum IOPS/vol for Throughput-Optimized HDD?

A

500

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14
Q

What is the use case for Cold HDD?

A
  • Lowest Cost HDD volumes
  • designed for less-frequently-accessed workloads
  • e.g. File Servers
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15
Q

What is the api name for Cold HDD?

A

sc1

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16
Q

What is the maximum IOPS/vol for Cold HDD?

A

250

17
Q

What is EBS Magnetic? What is it commonly used for?

A
  • Previous-Generation HDD
  • Commonly used for workloads for Infrequently Accessed Data
18
Q

What is the API name for EBS Magnetic?

A

standard

19
Q

What is the Maximum IOPS/vol for EBS Magnetic?

A

between 40 and 200

20
Q

What is the minimum volume size for General Purpose SSD storage?

A

1 GB

21
Q

What is the minimum volume size for Provisioned IOPS SSD storage?

A

4GB

22
Q

What is the minimum volume size for Throughput Optimized HDD storage?

A

500GB

23
Q

What is the minimum volume size for Cold HDD storage?

A

500 GB

24
Q

What is the maximum volume size for all types of EBS storage?

A

16 TB

25
Q

What is the difference between IOPS and Throughput?

A
  • IOPS is about the number of read/write operations per second
  • throughput is about the number of bits read/written per second