AMAZON FSX FOR LUSTRE EXAM QUESTIONS

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AMAZON FSX FOR LUSTRE EXAM QUESTIONS

Actual Qs and Ans Expert-Verified Explanation

This Exam contains:

-Guarantee passing score -41 Questions and Answers -format set of multiple-choice -Expert-Verified Explanation Question 1: "Q: What are the availability and durability characteristics of FSx for Lustre file systems?"

Answer:

"A: Amazon FSx for Lustre provides a parallel file system. In parallel file systems, data is stored across multiple network file servers to maximize performance and reduce bottlenecks, and each server has multiple disks. Larger file systems have more file servers and disks than smaller file systems.On a persistent file system, if a file server becomes unavailable it is replaced automatically and within minutes. In the meantime, client requests for data on that server transparently retry and eventually succeed after the file server is replaced. With persistent file systems, data is replicated on disks and any failed disks are automatically replaced behind the scenes, transparently.On a scratch file system, file servers are not replaced if they fail and data is not replicated. If a file server or a storage disk becomes unavailable, files stored on other servers are still accessible. If clients try to access files that are on the unavailable server, clients will get an I/O error. The following table provides the availability/durability for which scratch ?le systems of example sizes are designed. As larger file systems have more file servers and more disks, the probabilities of failure are increased.

Table: Availability/durability of scratch file systems of various example sizes

Scratch file system size (TiB) Number of file servers Availability/durability during one day Availability/durability during one week

1.2 2 99.9% 99.4%

2.4 2 99.9% 99.4%

4.8 3 99.8% 99.2%

9.6 5 99.8% 98.6%

50.4 22 99.1% 93.9%

Please refer to the Amazon FSx for Lustre documentation for more information.

Data protection" Question 2: "Q: How do I create a file system with Amazon FSx for Lustre?"

Answer:

"A: Creating an Amazon FSx for Lustre file system from the Console, CLI, or API is a simple process.Within minutes, your file system is running and accessible to your compute instances. If you link your filesystem to an S3 data lake, your objects will appear as files and directories as soon as your file system is available." Question 3: "Q: How are directories

Answer:

symbolic links, POSIX metadata, and POSIX permissions imported from and exported to Amazon S3?","A: As with other AWS services (like AWS Data Sync) that move data between file systems and S3 buckets, FSx for Lustre stores directories and symbolic links (symlinks) as separate objects in your S3 bucket. For example, a directory is stored as an S3 object with a key name that ends with a slash ("/").Amazon FSx for Lustre also automatically transfers Portable Operating System Interface (POSIX) metadata and permissions for files and directories when importing data from and exporting data to S3.The POSIX metadata is stored as S3 object metadata in the same format used by other AWS services.See POSIX metadata support for data repositories for more details." Question 4: "Q: If I have data on-premises how do I make it available to Amazon FSx for Lustre to process it?"

Answer:

"A: If you have high-performance or data processing workloads running on-premises and demand for computing capacity spikes, you can cloud burst your workloads to Amazon FSx for Lustre by using Amazon Direct Connect or VPN.Scale and performance" Question 5: "Q: What file system sizes are supported by FSx for Lustre & what is the increment granularity?"

Answer:

"A: Scratch and persistent SSD-based file systems can be created in sizes of 1.2 TiB or in increments of 2.4 TiB. Persistent HDD-based file systems with 12 MB/s and 40 MB/s of throughput per TiB can be created in increments of 6.0 TiB and 1.8 TiB, respectively." Question 6: "Q: What access control capabilities does Amazon FSx provide?"

Answer:

"A: Every FSx for Lustre resource is owned by an AWS account, and permissions to create or access a resource are governed by permissions policies. You specify the Amazon Virtual Private Cloud (VPC) in which your file system is made accessible, and you control which resources within the VPC have access

to your file system using VPC Security Groups. You control who can administer your file system and backup resources (create, delete, etc.) using AWS IAM." Question 7: "Q: What compliance programs does Amazon FSx support?"

Answer:

"A: AWS has the longest-running compliance program in the cloud and are committed to helping customers navigate their requirements. Amazon FSx has been assessed to meet global and industry security standards. It complies with PCI DSS, ISO 9001, 27001, 27017, and 27018), and SOC 1, 2, and 3, in addition to being HIPAA eligible. That makes it easier for you to verify our security and meet your own obligations. For more information and resources, visit our compliance pages. You can also go to the Services in Scope by Compliance Program page to see a full list of services and certifications.Availability and durability" Question 8: "Q: What is the difference between scratch and persistent deployment options?"

Answer:

"A: Amazon FSx for Lustre provides two deployment options: scratch and persistent.Scratch file systems are designed for temporary storage and shorter-term processing of data. Data is not replicated and does not persist if a file server fails.Persistent file systems are designed for longer-term storage and workloads. The file servers are highly available, and data is automatically replicated within the AWS Availability Zone (AZ) that is associated with the file system. The data volumes attached to the file servers are replicated independently from the file servers to which they are attached." Question 9: "Q: How do I choose the right storage type for my application?"

Answer:

"A: Choose SSD storage for latency-sensitive workloads or workloads requiring the highest levels of IOPS/throughput. Choose HDD storage for throughput-focused workloads that aren't latency-sensitive.For HDD-based file systems, the optional SSD cache improves performance by automatically placing your most frequently read data on SSD (the cache size is 20% of your file system size)." Question 10: "Q: What durability and consistency does Amazon FSx provide for backups?"

Answer:

"A: Backups are highly durable and file-system-consistent. To ensure high durability, Amazon FSx stores backups with 99.999999999% (11 9's) of durability on Amazon S3. Backups also present a consistent view of your file system, meaning that if metadata exists for a file in the backup, then the file's associated data is also included in the backup."

Question 11: "Q: How do I manage an FSx for Lustre file system?"

Answer:

"A: Amazon FSx is a fully managed service, so all of the file storage infrastructure is managed for you.When you use Amazon FSx, you avoid the complexity of deploying and maintaining complex file system infrastructure.You can administer a file system via the AWS Management Console, the AWS command-line interface (CLI), or the Amazon FSx API (and various language-specific SDKs). The Console, API, and SDK provide the ability to create and delete file systems, create and edit file system tags, and display detailed information about file systems. If you link your filesystem to an S3 data lake, your objects will appear as files and directories as soon as your system is available." Question 12: "Q: Do your prices include taxes?"

Answer:

"A: Except as otherwise noted, our prices are exclusive of applicable taxes and duties, including VAT and applicable sales tax. For customers with a Japanese billing address, use of AWS services is subject to Japanese Consumption Tax. Learn more." Question 13: "Q: Can I take a backup of any FSx for Lustre file system?"

Answer:

"A: You can take a backup of any FSx for Lustre file system that has persistent storage and is a standalone file system (i.e., not linked to an Amazon S3 bucket).Backups aren't supported on scratch file systems because these file systems are designed for temporary storage and shorter-term processing of data.Backups aren't supported on file systems linked to an Amazon S3 bucket because in this case the S3 bucket serves as the primary storage location for your full data set - the file system does not necessarily contain the full data set at any given time. With these file systems, use the FSx API to export new or changed files from the file system to your S3 bucket.Pricing and billing" Question 14: "Q: How do I take backups on Amazon FSx for Lustre?"

Answer:

"A. Amazon FSx takes daily automatic backups of your file systems, and allows you to take additional backups at any point. Amazon FSx backups are incremental, which means that only the changes after your most recent backup are saved, thus saving on backup storage costs by not duplicating data." Question 15: "Q: How do I access an Amazon FSx for Lustre file system from an Amazon Elastic Kubernetes Service (EKS) cluster?"

Answer:

"A: You can use persistent storage volumes backed by FSx for Lustre using the FSx for Lustre CSI driver from Amazon EKS or your self-managed Kubernetes on AWS. See Amazon EKS documentation