# Find EBS-optimized EC2 instance types
<a name="describe-ebs-optimization"></a>

You can view the instances types that support EBS optimization in each Region.

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#### [ Console ]

**To find instance types that are EBS-optimized by default**

1. Open the Amazon EC2 console at [https://console.amazonaws.cn/ec2/](https://console.amazonaws.cn/ec2/).

1. In the navigation pane, choose **Instance Types**.

1. Add the filter **EBS optimization support = default**.

1. (Optional) Choose the **Preferences** icon and then turn on the relevant columns, such as **EBS Maximum IOPS** and **EBS Baseline IOPS**.

1. (Optional) Add filters to further scope to specific instance types of interest.

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#### [ Amazon CLI ]

**To find instance types that are EBS-optimized by default**  
Use the following [ describe-instance-types](https://docs.amazonaws.cn/cli/latest/reference/ec2/describe-instance-types.html) command.

```
aws ec2 describe-instance-types \
--filters Name=ebs-info.ebs-optimized-support,Values=default  \
--query 'InstanceTypes[].{InstanceType:InstanceType, "MaxBandwidth(Mb/s)":EbsInfo.EbsOptimizedInfo.MaximumBandwidthInMbps, MaxIOPS:EbsInfo.EbsOptimizedInfo.MaximumIops, "MaxThroughput(MB/s)":EbsInfo.EbsOptimizedInfo.MaximumThroughputInMBps}' \
--output=table
```

**To find instance types that optionally support EBS optimization**  
Use the following [describe-instance-types](https://docs.amazonaws.cn/cli/latest/reference/ec2/describe-instance-types.html) command.

```
aws ec2 describe-instance-types \
--filters Name=ebs-info.ebs-optimized-support,Values=supported \
--query 'InstanceTypes[].{InstanceType:InstanceType, "MaxBandwidth(Mb/s)":EbsInfo.EbsOptimizedInfo.MaximumBandwidthInMbps, MaxIOPS:EbsInfo.EbsOptimizedInfo.MaximumIops, "MaxThroughput(MB/s)":EbsInfo.EbsOptimizedInfo.MaximumThroughputInMBps}' \
--output=table
```

The following is example output for `eu-west-1`.

```
--------------------------------------------------------------------------
|                         DescribeInstanceTypes                          |
+--------------+----------------------+----------+-----------------------+
| InstanceType | MaxBandwidth(Mb/s)   | MaxIOPS  |  MaxThroughput(MB/s)  |
+--------------+----------------------+----------+-----------------------+
|  i2.2xlarge  |  1000                |  8000    |  125.0                |
|  m2.4xlarge  |  1000                |  8000    |  125.0                |
|  m2.2xlarge  |  500                 |  4000    |  62.5                 |
|  c1.xlarge   |  1000                |  8000    |  125.0                |
|  i2.xlarge   |  500                 |  4000    |  62.5                 |
|  m3.xlarge   |  500                 |  4000    |  62.5                 |
|  m1.xlarge   |  1000                |  8000    |  125.0                |
|  r3.4xlarge  |  2000                |  16000   |  250.0                |
|  r3.2xlarge  |  1000                |  8000    |  125.0                |
|  c3.xlarge   |  500                 |  4000    |  62.5                 |
|  m3.2xlarge  |  1000                |  8000    |  125.0                |
|  r3.xlarge   |  500                 |  4000    |  62.5                 |
|  i2.4xlarge  |  2000                |  16000   |  250.0                |
|  c3.4xlarge  |  2000                |  16000   |  250.0                |
|  c3.2xlarge  |  1000                |  8000    |  125.0                |
|  m1.large    |  500                 |  4000    |  62.5                 |
+--------------+----------------------+----------+-----------------------+
```

------
#### [ PowerShell ]

**To find instance types that are EBS-optimized by default**  
Use the [Get-EC2InstanceType](https://docs.amazonaws.cn/powershell/latest/reference/items/Get-EC2InstanceType.html) cmdlet.

```
Get-EC2InstanceType `
    -Filter @{Name="ebs-info.ebs-optimized-support"; Values="default"} | `
    Select InstanceType, `
        @{Name="MaxBandwidth(Mb/s)"; Expression={($_.EbsInfo.EbsOptimizedInfo.MaximumBandwidthInMbps)}}, `
        @{Name="MaxIOPS"; Expression={($_.EbsInfo.EbsOptimizedInfo.MaximumIops)}}, `
        @{Name="MaxThroughput (MB/s)"; Expression={($_.EbsInfo.EbsOptimizedInfo.MaximumThroughputInMBps)}}
```

**To find instance types that optionally support EBS optimization**  
Use the [Get-EC2InstanceType](https://docs.amazonaws.cn/powershell/latest/reference/items/Get-EC2InstanceType.html) cmdlet.

```
Get-EC2InstanceType `
    -Filter @{Name="ebs-info.ebs-optimized-support"; Values="supported"} | `
    Select InstanceType, `
        @{Name="MaxBandwidth(Mb/s)"; Expression={($_.EbsInfo.EbsOptimizedInfo.MaximumBandwidthInMbps)}}, `
        @{Name="MaxIOPS"; Expression={($_.EbsInfo.EbsOptimizedInfo.MaximumIops)}}, `
        @{Name="MaxThroughput (MB/s)"; Expression={($_.EbsInfo.EbsOptimizedInfo.MaximumThroughputInMBps)}}
```

The following is example output for `eu-west-1`.

```
InstanceType MaxBandwidth(Mb/s) MaxIOPS MaxThroughput (MB/s)
------------ ------------------ ------- --------------------
m2.4xlarge                 1000    8000              125.000
i2.2xlarge                 1000    8000              125.000
c1.xlarge                  1000    8000              125.000
m2.2xlarge                  500    4000               62.500
r3.2xlarge                 1000    8000              125.000
m3.xlarge                   500    4000               62.500
r3.4xlarge                 2000   16000              250.000
m1.xlarge                  1000    8000              125.000
i2.xlarge                   500    4000               62.500
c3.xlarge                   500    4000               62.500
c3.4xlarge                 2000   16000              250.000
c3.2xlarge                 1000    8000              125.000
i2.4xlarge                 2000   16000              250.000
r3.xlarge                   500    4000               62.500
m3.2xlarge                 1000    8000              125.000
m1.large                    500    4000               62.500
```

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