本文為英文版的機器翻譯版本，如內容有任何歧義或不一致之處，概以英文版為準。

# Amazon OpenSearch Service 中支援的執行個體類型
<a name="supported-instance-types"></a>

Amazon OpenSearch Service 支援以下執行個體類型。並非所有區域皆支援所有執行個體類型。如需可用性詳細資訊，請參閱 [Amazon OpenSearch Service 定價](https://aws.amazon.com/opensearch-service/pricing/)。

如需哪些執行個體適合用於您的使用案例之相關資訊，請參閱 [調整 Amazon OpenSearch Service 網域的大小](sizing-domains.md)、[EBS 磁碟區大小配額](limits.md#ebsresource)​ 與 [網路配額](limits.md#network-limits)。

 請注意，下列執行個體系列不支援 VPC 加密控制：T2, T3, R3, I3, C4, M4, R4, C5, M5, R5, C6g, M6g, R6g和 R6gd。VPC Encryption Controls 是一項安全與合規功能，可讓您集中控制流量的加密狀態，協助您識別允許純文字通訊的資源，並最終為您提供機制，以強制執行區域內 VPC 內和跨 VPCs的傳輸中加密。若要進一步了解詳細資訊，請參閱 [ VPC Encryption Controls 文件。](https://docs.aws.amazon.com/vpc/latest/userguide/vpc-encryption-controls.html)

## 最新一代執行個體類型
<a name="latest-gen"></a>

為了獲得最佳效能，我們建議您在建立新 OpenSearch Service 網域時使用下列執行個體類型。


| 執行個體類型 | 執行個體 | 限制 | 
| --- | --- | --- | 
| i4i | i4i.large.search i4i.xlarge.search i4i.2xlarge.search i4i.4xlarge.search i4i.8xlarge.search i4i.12xlarge.search i4i.16xlarge.search i4i.24xlarge.search i4i.32xlarge.search  | i4i 執行個體類型需要 Elasticsearch 5.1 或更新版本或任何版本的 OpenSearch，且不支援 EBS 磁碟區儲存。 | 
| i7i | i7i.large.search i7i.xlarge.search i7i.2xlarge.search i7i.4xlarge.search i7i.8xlarge.search i7i.12xlarge.search i7i.16xlarge.search  | i7i 執行個體類型需要 Elasticsearch 5.1 或更新版本或任何版本的 OpenSearch，且不支援 EBS 磁碟區儲存。 | 
| i8g | i8g.large.search i8g.xlarge.search i8g.2xlarge.search i8g.4xlarge.search i8g.8xlarge.search i8g.12xlarge.search i8g.16xlarge.search  |  i8g 執行個體類型需要 Elasticsearch 7.9 或更新版本或任何版本的 OpenSearch，且不支援 EBS 儲存磁碟區。  | 
| i8ge | i8ge.large.search i8ge.xlarge.search i8ge.2xlarge.search i8ge.3xlarge.search i8ge.6xlarge.search i8ge.12xlarge.search i8ge.18xlarge.search  |  i8ge 執行個體類型需要 Elasticsearch 7.9 或更新版本或任何版本的 OpenSearch，且不支援 EBS 儲存磁碟區。  | 
| Graviton3 | c7g.large.search c7g.xlarge.search c7g.2xlarge.search c7g.4xlarge.search c7g.8xlarge.search c7g.12xlarge.search c7g.16xlarge.search m7g.medium.search m7g.large.search m7g.xlarge.search m7g.2xlarge.search m7g.4xlarge.search m7g.8xlarge.search m7g.12xlarge.search m7g.16xlarge.search r7g.medium.search r7g.large.search r7g.xlarge.search r7g.2xlarge.search r7g.4xlarge.search r7g.8xlarge.search r7g.12xlarge.search r7g.16xlarge.search r7gd.large.search r7gd.xlarge.search r7gd.2xlarge.search r7gd.4xlarge.search r7gd.8xlarge.search r7gd.12xlarge.search r7gd.16xlarge.search  | Graviton3 僅支援 gp3 儲存。Graviton3 執行個體 (c7g、m7g、r7g) 支援所有 OpenSearch 版本和 Elasticsearch 7.9 和 7.10 版。 | 
| OR1 |  `or1.medium.search` `or1.large.search` `or1.xlarge.search` `or1.2xlarge.search` `or1.4xlarge.search` `or1.8xlarge.search` `or1.12xlarge.search` `or1.16xlarge.search`  |  [\[See the AWS documentation website for more details\]](http://docs.aws.amazon.com/zh_tw/opensearch-service/latest/developerguide/supported-instance-types.html)  | 
| OR2 |  `or2.medium.search` `or2.large.search` `or2.xlarge.search` `or2.2xlarge.search` `or2.4xlarge.search` `or2.8xlarge.search ` `or2.12xlarge.search` `or2.16xlarge.search`  |  [\[See the AWS documentation website for more details\]](http://docs.aws.amazon.com/zh_tw/opensearch-service/latest/developerguide/supported-instance-types.html)  | 
| OM2 |  `om2.large.search` `om2.xlarge.search` `om2.2xlarge.search` `om2.4xlarge.search` `om2.8xlarge.search` `om2.12xlarge.search` `om2.16xlarge.search`  |  [\[See the AWS documentation website for more details\]](http://docs.aws.amazon.com/zh_tw/opensearch-service/latest/developerguide/supported-instance-types.html)  | 
| OI2 |  `oi2.large.search` `oi2.xlarge.search` `oi2.2xlarge.search` `oi2.4xlarge.search` `oi2.8xlarge.search` `oi2.12xlarge.search` `oi2.16xlarge.search` `oi2.24xlarge.search` `oi2.32xlarge.search`  |  [\[See the AWS documentation website for more details\]](http://docs.aws.amazon.com/zh_tw/opensearch-service/latest/developerguide/supported-instance-types.html)  | 
| Im4gn |  `im4gn.large.search` `im4gn.xlarge.search` `im4gn.2xlarge.search` `im4gn.4xlarge.search` `im4gn.8xlarge.search` `im4gn.16xlarge.search`  |  [\[See the AWS documentation website for more details\]](http://docs.aws.amazon.com/zh_tw/opensearch-service/latest/developerguide/supported-instance-types.html)  | 
|  T3  | `t3.small.search` `t3.medium.search` |  [\[See the AWS documentation website for more details\]](http://docs.aws.amazon.com/zh_tw/opensearch-service/latest/developerguide/supported-instance-types.html)  | 
| c7i | `c7i.large.search` `c7i.xlarge.search` `c7i.2xlarge.search` `c7i.4xlarge.search` `c7i.8xlarge.search` `c7i.12xlarge.search` `c7i.16xlarge.search` |  [\[See the AWS documentation website for more details\]](http://docs.aws.amazon.com/zh_tw/opensearch-service/latest/developerguide/supported-instance-types.html)  | 
| m7i | `m7i.large.search` `m7i.xlarge.search` `m7i.2xlarge.search` `m7i.4xlarge.search` `m7i.8xlarge.search` `m7i.12xlarge.search` `m7i.16xlarge.search` |  [\[See the AWS documentation website for more details\]](http://docs.aws.amazon.com/zh_tw/opensearch-service/latest/developerguide/supported-instance-types.html)  | 
| r7i | `r7i.large.search` `r7i.xlarge.search` `r7i.2xlarge.search` `r7i.4xlarge.search` `r7i.8xlarge.search` `r7i.12xlarge.search` `r7i.16xlarge.search` |  [\[See the AWS documentation website for more details\]](http://docs.aws.amazon.com/zh_tw/opensearch-service/latest/developerguide/supported-instance-types.html)  | 
| c8g | `c8g.large.search` `c8g.xlarge.search` `c8g.2xlarge.search` `c8g.4xlarge.search` `c8g.8xlarge.search` `c8g.12xlarge.search` `c8g.16xlarge.search` |  [\[See the AWS documentation website for more details\]](http://docs.aws.amazon.com/zh_tw/opensearch-service/latest/developerguide/supported-instance-types.html)  | 
| m8g | `m8g.medium.search` `m8g.large.search` `m8g.xlarge.search` `m8g.2xlarge.search` `m8g.4xlarge.search` `m8g.8xlarge.search` `m8g.12xlarge.search` `m8g.16xlarge.search` |  [\[See the AWS documentation website for more details\]](http://docs.aws.amazon.com/zh_tw/opensearch-service/latest/developerguide/supported-instance-types.html)  | 
| r8g | `r8g.medium.search` `r8g.large.search` `r8g.xlarge.search` `r8g.2xlarge.search` `r8g.4xlarge.search` `r8g.8xlarge.search` `r8g.12xlarge.search` `r8g.16xlarge.search` |  [\[See the AWS documentation website for more details\]](http://docs.aws.amazon.com/zh_tw/opensearch-service/latest/developerguide/supported-instance-types.html)  | 
| r8gd | `r8gd.medium.search` `r8gd.large.search` `r8gd.2xlarge.search` `r8gd.4xlarge.search` `r8gd.8xlarge.search` `r8gd.12xlarge.search` `r8gd.16xlarge.search` |  [\[See the AWS documentation website for more details\]](http://docs.aws.amazon.com/zh_tw/opensearch-service/latest/developerguide/supported-instance-types.html)  | 

## 上一代執行個體類型
<a name="previous-gen"></a>

OpenSearch Service 提供上一代的執行個體類型，適合已據此將應用程式最佳化且尚未升級的使用者。建議您使用最新一代的執行個體類型以獲得最佳效能，但我們仍會繼續支援下列上一代執行個體類型。


| 執行個體類型 | 執行個體 | 限制 | 
| --- | --- | --- | 
|  C4  | `c4.large.search` `c4.xlarge.search` `c4.2xlarge.search` `c4.4xlarge.search` `c4.8xlarge.search` |  | 
| I2 |  `i2.xlarge.search` `i2.2xlarge.search`  |  | 
|  M3  |  `m3.medium.search` `m3.large.search` `m3.xlarge.search` `m3.2xlarge.search`  |  [\[See the AWS documentation website for more details\]](http://docs.aws.amazon.com/zh_tw/opensearch-service/latest/developerguide/supported-instance-types.html)  | 
| M4 |  `m4.large.search` `m4.xlarge.search` `m4.2xlarge.search` `m4.4xlarge.search` `m4.10xlarge.search`  |  | 
|  R3  |  `r3.large.search` `r3.xlarge.search` `r3.2xlarge.search` `r3.4xlarge.search` `r3.8xlarge.search`  | R3 執行個體類型不支援靜態資料加密或精細存取控制。 | 
| R4 |  `r4.large.search` `r4.xlarge.search` `r4.2xlarge.search` `r4.4xlarge.search` `r4.8xlarge.search` `r4.16xlarge.search`  |  | 
| i4g | i4g.large.search i4g.xlarge.search i4g.2xlarge.search i4g.4xlarge.search i4g.8xlarge.search i4g.16xlarge.search  |  i4g 執行個體類型需要 Elasticsearch 7.9 或更新版本或任何版本的 OpenSearch，且不支援 EBS 儲存磁碟區。  | 
| C5 |  `c5.large.search` `c5.xlarge.search` `c5.2xlarge.search` `c5.4xlarge.search` `c5.9xlarge.search` `c5.18xlarge.search`  |  C5 執行個體類型需要 Elasticsearch 5.1 或更新版本或任何版本的 OpenSearch。  | 
| C6g |  `c6g.large.search` `c6g.xlarge.search` `c6g.2xlarge.search` `c6g.4xlarge.search` `c6g.8xlarge.search` `c6g.12xlarge.search`  |  [\[See the AWS documentation website for more details\]](http://docs.aws.amazon.com/zh_tw/opensearch-service/latest/developerguide/supported-instance-types.html)  | 
|  I3  |  `i3.large.search` `i3.xlarge.search` `i3.2xlarge.search` `i3.4xlarge.search` `i3.8xlarge.search` `i3.16xlarge.search`  |   | 
|  M5  |  `m5.large.search` `m5.xlarge.search` `m5.2xlarge.search` `m5.4xlarge.search` `m5.12xlarge.search`  |  M5 執行個體類型需要 Elasticsearch 5.1 或更新版本或任何版本的 OpenSearch。  | 
| M6g |  `m6g.large.search` `m6g.xlarge.search` `m6g.2xlarge.search` `m6g.4xlarge.search` `m6g.8xlarge.search` `m6g.12xlarge.search`  |  [\[See the AWS documentation website for more details\]](http://docs.aws.amazon.com/zh_tw/opensearch-service/latest/developerguide/supported-instance-types.html)  | 
|  R5  |  `r5.large.search` `r5.xlarge.search` `r5.2xlarge.search` `r5.4xlarge.search` `r5.12xlarge.search`  |  R5 執行個體類型需要 Elasticsearch 5.1 或更新版本或任何版本的 OpenSearch。  | 
| R6g |  `r6g.large.search` `r6g.xlarge.search` `r6g.2xlarge.search` `r6g.4xlarge.search` `r6g.8xlarge.search` `r6g.12xlarge.search`  |  [\[See the AWS documentation website for more details\]](http://docs.aws.amazon.com/zh_tw/opensearch-service/latest/developerguide/supported-instance-types.html)  | 
| R6gd | `r6gd.large.search` `r6gd.xlarge.search` `r6gd.2xlarge.search` `r6gd.4xlarge.search` `r6gd.8xlarge.search` `r6gd.12xlarge.search` `r6gd.16xlarge.search` |  [\[See the AWS documentation website for more details\]](http://docs.aws.amazon.com/zh_tw/opensearch-service/latest/developerguide/supported-instance-types.html)  | 
| T2 |  `t2.micro.search` `t2.small.search` `t2.medium.search`  |  [\[See the AWS documentation website for more details\]](http://docs.aws.amazon.com/zh_tw/opensearch-service/latest/developerguide/supported-instance-types.html)  | 

**提示**  
對於[專用主節點](managedomains-dedicatedmasternodes.md)及資料節點，我們經常建議使用不同的執行個體類型。