# 实例规格

### 可用实例大小

实例大小示例：`z2a.cpu.1`

* `z` - `通用型`：虚拟机的类别。\ 通用型实例拥有专用的vCPU。\\
* `2` - `第二代`：使用的vCPU技术的代数。

  其他选项：`3` - `第三代`，以此类推....\\
* `a` - `AMD`：vCPU的制造商。

  其他选项：`i` - `Intel` \\
* `cpu` - `1:2`：vCPU:内存比例\ `cpu` - `1:2` 是CPU密集型实例\ 其他选项：`std` - `1:4`：标准型实例；`mem` - `1:8`：内存密集型实例\\
* `1` - `1个vCPU核心`：vCPU核心的数量。\ 其他选项：`2` - `2个vCPU核心`，以此类推....

<table><thead><tr><th width="132.7628173828125">实例大小</th><th width="98.2435302734375">vCPU</th><th width="118.73577880859375">内存 (GiB)</th><th width="146.38763427734375">vCPU:内存比例</th><th width="129.8182373046875">vNIC多队列</th><th width="89.72930908203125">vNIC</th><th width="250.2203369140625">每个vNIC的私有IPv4地址数量</th></tr></thead><tbody><tr><td>z2a.cpu.1</td><td>1</td><td>2</td><td>1:2</td><td>1</td><td>2</td><td>6</td></tr><tr><td>z2a.std.1</td><td>1</td><td>4</td><td>1:4</td><td>1</td><td>2</td><td>6</td></tr><tr><td>z2a.mem.1</td><td>1</td><td>8</td><td>1:8</td><td>1</td><td>2</td><td>6</td></tr><tr><td>z2a.cpu.2</td><td>2</td><td>4</td><td>1:2</td><td>1</td><td>2</td><td>10</td></tr><tr><td>z2a.std.2</td><td>2</td><td>8</td><td>1:4</td><td>1</td><td>2</td><td>10</td></tr><tr><td>z2a.mem.2</td><td>2</td><td>16</td><td>1:8</td><td>1</td><td>2</td><td>10</td></tr><tr><td>z2a.cpu.4</td><td>4</td><td>8</td><td>1:2</td><td>2</td><td>2</td><td>15</td></tr><tr><td>z2a.std.4</td><td>4</td><td>16</td><td>1:4</td><td>2</td><td>2</td><td>15</td></tr><tr><td>z2a.mem.4</td><td>4</td><td>32</td><td>1:8</td><td>2</td><td>2</td><td>15</td></tr><tr><td>z2a.cpu.8</td><td>8</td><td>16</td><td>1:2</td><td>4</td><td>2</td><td>15</td></tr><tr><td>z2a.std.8</td><td>8</td><td>32</td><td>1:4</td><td>4</td><td>2</td><td>15</td></tr><tr><td>z2a.mem.8</td><td>8</td><td>64</td><td>1:8</td><td>4</td><td>2</td><td>15</td></tr><tr><td>z2a.cpu.16</td><td>16</td><td>32</td><td>1:2</td><td>8</td><td>4</td><td>30</td></tr><tr><td>z2a.std.16</td><td>16</td><td>64</td><td>1:4</td><td>8</td><td>4</td><td>30</td></tr><tr><td>z2a.mem.16</td><td>16</td><td>128</td><td>1:8</td><td>8</td><td>4</td><td>30</td></tr><tr><td>z2a.cpu.32</td><td>32</td><td>64</td><td>1:2</td><td>16</td><td>8</td><td>30</td></tr><tr><td>z2a.std.32</td><td>32</td><td>128</td><td>1:4</td><td>16</td><td>8</td><td>30</td></tr><tr><td>z2a.mem.32</td><td>32</td><td>256</td><td>1:8</td><td>16</td><td>8</td><td>30</td></tr><tr><td>z2a.cpu.64</td><td>64</td><td>128</td><td>1:2</td><td>32</td><td>16</td><td>30</td></tr><tr><td>z2a.std.64</td><td>64</td><td>256</td><td>1:4</td><td>32</td><td>16</td><td>30</td></tr><tr><td>z2a.mem.64</td><td>64</td><td>512</td><td>1:8</td><td>32</td><td>16</td><td>30</td></tr></tbody></table>

### vNIC 容量与网络限制

vNIC 容量随实例规格扩展，以下限制适用于所有实例族：

| vCPU 数量 | 最大 vNIC 数 | vNIC 多队列 | 每个 vNIC 的私有 IPv4 | 每个 vNIC 的带宽 | 每个 vNIC 的 PPS |
| ------- | --------- | -------- | ---------------- | ----------- | ------------- |
| 1       | 2         | 1        | 6–10             | 1 Gbps      | 0 Kpps        |
| 2       | 2         | 1        | 6–10             | 2 Gbps      | 0 Kpps        |
| 4–7     | 2         | 2–4      | 15               | 4 Gbps      | 0 Kpps        |
| 8       | 2         | 2–4      | 15               | 6 Gbps      | 0 Kpps        |
| 16      | 4         | 8        | 30               | 10 Gbps     | 0 Kpps        |
| 32      | 8         | 16       | 30               | 16 Gbps     | 0 Kpps        |
| 64      | 16        | 32       | 30               | 20 Gbps     | 0 Kpps        |

{% hint style="info" %} <mark style="color:blue;">**注意**</mark>

* <mark style="color:blue;">**vNIC**</mark><mark style="color:blue;">: 可以附加到实例的最大 vNIC 数量（包括主 vNIC）。</mark>
* <mark style="color:blue;">**vNIC 多队列**</mark><mark style="color:blue;">: 每个 vNIC 的发送 (Tx) 和接收 (Rx) 队列数量，更高的数量可提升网络吞吐量并降低延迟。</mark>
* <mark style="color:blue;">**每个 vNIC 的私有 IPv4 地址数量**</mark><mark style="color:blue;">: 可以分配给单个 vNIC 的最大私有 IPv4 地址数量。</mark>
* <mark style="color:blue;">**每个 vNIC 的带宽**</mark><mark style="color:blue;">: 每个 vNIC 可用的最大出站（egress）带宽。</mark>
* <mark style="color:blue;">**每个 vNIC 的 PPS**</mark><mark style="color:blue;">: 每个 vNIC 的最大每秒数据包吞吐量。</mark>
* <mark style="color:blue;">每个位置可用的实例大小可能因库存而异。</mark>
* <mark style="color:blue;">如需更多规格配额，请联系我们。</mark>
  {% endhint %}


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