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  • 实例存储生命周期 Instance store

    Instance store 实例存储生命周期

    您只能在启动实例时指定实例的实例存储卷。您无法将实例存储卷与一个实例分离并将该卷附加到另一个实例。

    实例存储内的数据仅在与关联的实例的生命周期内保留。如果实例重启 (无论是故意还是意外)，实例存储内的数据都会保留下来。然而，在以下任一情况下，实例存储中的数据会丢失：

    • 底层磁盘驱动器发生故障

    • 实例停止

    • 实例终止

    因此，切勿依赖实例存储来存储珍贵且需要长期保存的数据。应使用更持久的数据存储，如 Amazon S3、Amazon EBS 或 Amazon EFS。

    当您停止或终止一个实例时，将重置实例存储中的每个存储数据块。因此，无法通过另一实例的实例存储访问您的数据。

    如果您从实例创建 AMI，则从此 AMI 中启动实例时，实例存储卷上的数据不能保存且不会出现在实例存储卷上。


    下表列出了每种支持的实例类型可以使用的实例存储卷的数量、大小、类型和性能优化。有关实例类型的完整列表（包括仅 EBS 类型），请参阅 Amazon EC2 实例类型。

    实例类型实例存储卷类型需要初始化 *TRIM Support**

    c1.medium

    1 x 350 GB

    		 HDD ✔  

    c1.xlarge

    4 x 420 GB (1.6 TB)

    		 HDD ✔  

    c3.large

    2 x 16 GB (32 GB)

    		 SSD ✔  

    c3.xlarge

    2 x 40 GB (80 GB)

    		 SSD ✔  

    c3.2xlarge

    2 x 80 GB (160 GB)

    		 SSD ✔  

    c3.4xlarge

    2 x 160 GB (320 GB)

    		 SSD ✔  

    c3.8xlarge

    2 x 320 GB (640 GB)

    		 SSD ✔  
    c5d.large 1 x 50GB NVMe SSD   ✔
    c5d.xlarge 1 x 100GB NVMe SSD   ✔
    c5d.2xlarge 1 x 200GB NVMe SSD   ✔
    c5d.4xlarge 1 x 400GB NVMe SSD   ✔
    c5d.9xlarge 1 x 900GB NVMe SSD   ✔
    c5d.18xlarge 2 x 900 GB (1.8 TB) NVMe SSD   ✔

    cc2.8xlarge

    4 x 840 GB (3.36 TB)

    		 HDD ✔  

    cr1.8xlarge

    2 x 120 GB (240 GB)

    		 SSD ✔  

    d2.xlarge

    3 x 2,000 GB (6 TB)

    		 HDD    

    d2.2xlarge

    6 x 2,000 GB (12 TB)

    		 HDD    

    d2.4xlarge

    12 x 2,000 GB (24 TB)

    		 HDD    

    d2.8xlarge

    24 x 2,000 GB (48 TB)

    		 HDD    

    f1.2xlarge

    1 x 470GB

    		 NVMe SSD   ✔

    f1.4xlarge

    1 x 940 GB

    		 NVMe SSD   ✔

    f1.16xlarge

    4 x 940 GB (3.76 TB)

    		 NVMe SSD   ✔
    g2.2xlarge 1 x 60 GB SSD ✔  
    g2.8xlarge 2 x 120 GB (240 GB) SSD ✔  
    h1.2xlarge 1 x 2000 GB (2 TB) HDD    
    h1.4xlarge 2 x 2000 GB (4 TB) HDD    
    h1.8xlarge 4 x 2000 GB (8 TB) HDD    
    h1.16xlarge 8 x 2000 GB (16 TB) HDD    

    hs1.8xlarge

    24 x 2,000 GB (48 TB)

    		 HDD ✔  

    i2.xlarge

    1 x 800 GB

    		 SSD   ✔

    i2.2xlarge

    2 x 800 GB (1.6 TB)

    		 SSD   ✔

    i2.4xlarge

    4 x 800 GB (3.2 TB)

    		 SSD   ✔

    i2.8xlarge

    8 x 800 GB (6.4 TB)

    		 SSD   ✔

    i3.large

    1 x 475 GB

    		 NVMe SSD   ✔

    i3.xlarge

    1 x 950 GB

    		 NVMe SSD   ✔

    i3.2xlarge

    1 x 1,900 GB

    		 NVMe SSD   ✔

    i3.4xlarge

    2 x 1,900 GB (3.8 TB)

    		 NVMe SSD   ✔

    i3.8xlarge

    4 x 1,900 GB (7.6 TB)

    		 NVMe SSD   ✔

    i3.16xlarge

    8 x 1,900 GB (15.2 TB)

    		 NVMe SSD   ✔

    i3.metal

    8 x 1,900 GB (15.2 TB)

    		 NVMe SSD   ✔

    i3en.large

    1 x 1,250 GB

    		 NVMe SSD   ✔

    i3en.xlarge

    1 x 2,500 GB

    		 NVMe SSD   ✔

    i3en.2xlarge

    2 x 2,500 GB (5 TB)

    		 NVMe SSD   ✔

    i3en.3xlarge

    1 x 7,500 GB

    		 NVMe SSD   ✔

    i3en.6xlarge

    2 x 7,500 GB (15 TB)

    		 NVMe SSD   ✔

    i3en.12xlarge

    4 x 7,500 GB (30 TB)

    		 NVMe SSD   ✔

    i3en.24xlarge

    8 x 7,500 GB (60 TB)

    		 NVMe SSD   ✔

    m1.small

    1 x 160 GB

    		 HDD ✔  

    m1.medium

    1 x 410 GB

    		 HDD ✔  

    m1.large

    2 x 420 GB (840 GB)

    		 HDD ✔  

    m1.xlarge

    4 x 420 GB (1.6 TB)

    		 HDD ✔  

    m2.xlarge

    1 x 420 GB

    		 HDD ✔  

    m2.2xlarge

    1 x 850 GB

    		 HDD ✔  

    m2.4xlarge

    2 x 840 GB (1.68 TB)

    		 HDD ✔  

    m3.medium

    1 x 4 GB

    		 SSD ✔  

    m3.large

    1 x 32 GB

    		 SSD ✔  

    m3.xlarge

    2 x 40 GB (80 GB)

    		 SSD ✔  

    m3.2xlarge

    2 x 80 GB (160 GB)

    		 SSD ✔  
    m5ad.large 1 x 75GB NVMe SSD   ✔
    m5ad.xlarge 1 x 150GB NVMe SSD   ✔
    m5ad.2xlarge 1 x 300GB NVMe SSD   ✔
    m5ad.4xlarge 2 x 300 GB (600 GB) NVMe SSD   ✔
    m5ad.12xlarge 2 x 900 GB (1.8 TB) NVMe SSD   ✔
    m5ad.24xlarge 4 x 900 GB (3.6 TB) NVMe SSD   ✔
    m5d.large 1 x 75GB NVMe SSD   ✔
    m5d.xlarge 1 x 150GB NVMe SSD   ✔
    m5d.2xlarge 1 x 300GB NVMe SSD   ✔
    m5d.4xlarge 2 x 300 GB (600 GB) NVMe SSD   ✔
    m5d.12xlarge 2 x 900 GB (1.8 TB) NVMe SSD   ✔
    m5d.24xlarge 4 x 900 GB (3.6 TB) NVMe SSD   ✔
    m5d.metal 4 x 900 GB (3.6 TB) NVMe SSD   ✔
    p3dn.24xlarge 2 x 900 GB (1.8 TB) NVMe SSD   ✔

    r3.large

    1 x 32 GB

    		 SSD   ✔

    r3.xlarge

    1 x 80 GB

    		 SSD   ✔

    r3.2xlarge

    1 x 160 GB

    		 SSD   ✔

    r3.4xlarge

    1 x 320 GB

    		 SSD   ✔

    r3.8xlarge

    2 x 320 GB (640 GB)

    		 SSD   ✔
    r5ad.large 1 x 75GB NVMe SSD   ✔
    r5ad.xlarge 1 x 150GB NVMe SSD   ✔
    r5ad.2xlarge 1 x 300GB NVMe SSD   ✔
    r5ad.4xlarge 2 x 300 GB (600 GB) NVMe SSD   ✔
    r5ad.12xlarge 2 x 900 GB (1.8 TB) NVMe SSD   ✔
    r5ad.24xlarge 4 x 900 GB (3.6 TB) NVMe SSD   ✔
    r5d.large 1 x 75GB NVMe SSD   ✔
    r5d.xlarge 1 x 150GB NVMe SSD   ✔
    r5d.2xlarge 1 x 300GB NVMe SSD   ✔
    r5d.4xlarge 2 x 300 GB (600 GB) NVMe SSD   ✔
    r5d.12xlarge 2 x 900 GB (1.8 TB) NVMe SSD   ✔
    r5d.24xlarge 4 x 900 GB (3.6 TB) NVMe SSD   ✔
    r5d.metal 4 x 900 GB (3.6 TB) NVMe SSD   ✔

    x1.16xlarge

    1 x 1,920 GB

    		 SSD    

    x1.32xlarge

    2 x 1,920 GB (3.84 TB)

    		 SSD    

    x1e.xlarge

    1 x 120GB

    		 SSD    

    x1e.2xlarge

    1 x 240GB

    		 SSD    

    x1e.4xlarge

    1 x 480GB

    		 SSD    

    x1e.8xlarge

    1 x 960GB

    		 SSD    

    x1e.16xlarge

    1 x 1,920 GB

    		 SSD    

    x1e.32xlarge

    2 x 1,920 GB (3.84 TB)

    		 SSD    

    z1d.large

    1 x 75GB

    		 NVMe SSD   ✔

    z1d.xlarge

    1 x 150GB

    		 NVMe SSD   ✔

    z1d.2xlarge

    1 x 300GB

    		 NVMe SSD   ✔

    z1d.3xlarge

    1 x 450GB

    		 NVMe SSD   ✔

    z1d.6xlarge

    1 x 900GB

    		 NVMe SSD   ✔

    z1d.12xlarge

    2 x 900 GB (1.8 TB)

    		 NVMe SSD   ✔

    z1d.metal

    2 x 900 GB (1.8 TB)

    		 NVMe SSD   ✔

    * 如果附加到特定实例的卷没有初始化，将会进行初始写入。
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  • 原文地址：https://www.cnblogs.com/cloudrivers/p/11225411.html
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