SAP-C02 第 23 题
题目
A company is running a data-intensive application on AWS. The application runs on a cluster of hundreds of Amazon EC2 instances. A shared file system also runs on several EC2 instances that store 200 TB of data. The application reads and modifies the data on the shared file system and generates a report. The job runs once monthly, reads a subset of the files from the shared file system, and takes about 72 hours to complete. The compute instances scale in an Auto Scaling group, but the instances that host the shared file system run continuously. The compute and storage instances are all in the same AWS Region. A solutions architect needs to reduce costs by replacing the shared file system instances. The file system must provide high performance access to the needed data for the duration of the 72-hour run. Which solution will provide the LARGEST overall cost reduction while meeting these requirements?
中文翻译：
一家公司正在 AWS 上运行数据密集型应用程序。该应用程序在由数百个 Amazon EC2 实例组成的集群上运行。共享文件系统还在多个存储 200 TB 数据的 EC2 实例上运行。应用程序读取和修改共享文件系统上的数据并生成报告。该作业每月运行一次，从共享文件系统读取文件的子集，大约需要 72 小时才能完成。计算实例在 Auto Scaling 组中扩展，但托管共享文件系统的实例持续运行。计算和存储实例均位于同一 AWS 区域。解决方案架构师需要通过替换共享文件系统实例来降低成本。文件系统必须在 72 小时运行期间提供对所需数据的高性能访问。哪种解决方案能够在满足这些要求的同时最大程度地降低总体成本？
选项
A. Migrate the data from the existing shared file system to an Amazon S3 bucket that uses the S3 Intelligent-Tiering storage class. Before the job runs each month, use Amazon FSx for Lustre to create a new file system with the data from Amazon S3 by using lazy loading. Use the new file system as the shared storage for the duration of the job. Delete the file system when the job is complete.
中文翻译：
将数据从现有共享文件系统迁移到使用 S3 智能分层存储类的 Amazon S3 存储桶。在每月运行作业之前，使用 Amazon FSx for Lustre 通过延迟加载的方式使用 Amazon S3 中的数据创建新的文件系统。使用新文件系统作为作业期间的共享存储。作业完成后删除文件系统。
B. Migrate the data from the existing shared file system to a large Amazon Elastic Block Store (Amazon EBS) volume with Multi- Attach enabled. Attach the EBS volume to each of the instances by using a user data script in the Auto Scaling group launch template. Use the EBS volume as the shared storage for the duration of the job. Detach the EBS volume when the job is complete
中文翻译：
将数据从现有共享文件系统迁移到启用了多重附加的大型 Amazon Elastic Block Store (Amazon EBS) 卷。使用 Auto Scaling 组启动模板中的用户数据脚本将 EBS 卷附加到每个实例。使用 EBS 卷作为作业期间的共享存储。作业完成后分离 EBS 卷
C. Migrate the data from the existing shared file system to an Amazon S3 bucket that uses the S3 Standard storage class. Before the job runs each month, use Amazon FSx for Lustre to create a new file system with the data from Amazon S3 by using batch loading. Use the new file system as the shared storage for the duration of the job. Delete the file system when the job is complete.
中文翻译：
将数据从现有共享文件系统迁移到使用 S3 标准存储类的 Amazon S3 存储桶。在每月运行作业之前，使用 Amazon FSx for Lustre 通过批量加载的方式使用 Amazon S3 中的数据创建新的文件系统。使用新文件系统作为作业期间的共享存储。作业完成后删除文件系统。
D. Migrate the data from the existing shared file system to an Amazon S3 bucket. Before the job runs each month, use AWS Storage Gateway to create a file gateway with the data from Amazon S3. Use the file gateway as the shared storage for the job. Delete the file gateway when the job is complete.
中文翻译：
将数据从现有共享文件系统迁移到 Amazon S3 存储桶。在每月运行作业之前，使用 AWS Storage Gateway 使用 Amazon S3 中的数据创建文件网关。使用文件网关作为作业的共享存储。作业完成后删除文件网关。
答案
A
解析
正确答案：A 解析： 本题应选择 A。 正确选项： A. 将数据从现有共享文件系统迁移到使用 S3 智能分层存储类的 Amazon S3 存储桶。在每月运行作业之前，使用 Amazon FSx for Lustre 通过延迟加载的方式使用 Amazon S3 中的数据创建新的文件系统。使用新文件系统作为作业期间的共享存储。作业完成后删除文件系统。 选择理由： 该选项最直接地满足题干中的关键约束。做 SAP-C02 题目时，需要同时对照题...