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Question 841

A company uses Amazon EC2 instances and Amazon Elastic Block Store (Amazon EBS) to run its self-managed database. The company has 350 TB of data spread across all EBS volumes. The company takes daily EBS snapshots and keeps the snapshots for 1 month. The daily change rate is 5% of the EBS volumes.

Because of new regulations, the company needs to keep the monthly snapshots for 7 years. The company needs to change its backup strategy to comply with the new regulations and to ensure that data is available with minimal administrative effort.

Which solution will meet these requirements MOST cost-effectively?

    Correct Answer: B

    Continuing the current EBS snapshot policy and adding a new policy to move the monthly snapshot to Amazon EBS Snapshots Archive with a 7-year retention period meets the requirements most cost-effectively and with minimal administrative effort. The EBS Snapshots Archive is designed for long-term retention and compliance use cases. It provides lower storage costs compared to keeping snapshots in the standard tier for extended periods and ensures that full snapshots are available, which aligns with compliance requirements.

Discussion
ScheldonOption: B

AnswerB The problem is that we need to choose best solution which is most cost-effective and have minimal administrative effort. Glacier is the best choice for 1st look, but there is one problem with that solution. From what I know there is no easy way to copy from EBS to Glacier and additionally curent strategy is to make incremental snapshots. To copy file from EBS to (s3) Glacier we would need to run linux to which we will mount EBS and we will need copy everything to S3 and then move to glaceir deep archive. And what is more you will have only incremental snapshot. Hence every solution which will say copy/move to S3 is not minimal administrative effort. Not mentionig that you will not have full snapshot https://repost.aws/questions/QUsaCoBAfbR6WMOz6BH3vqHA/move-ebs-to-glacier

rondelldellOption: A

How much does EBS snapshots archive cost? Pricing and billing. Archived snapshots are billed at a rate of $0.0125 per GB-month. For example, if you archive a 100 GiB snapshot, you are billed $1.25 (100 GiB * $0.0125) per month. What is the cost of Glacier? Even though uploading data to Amazon S3 Glacier is free, there is a pricing method for upload requests, which is $0.03 per 1,000 requests. Transferring data out of S3 Glacier to the same region is free; however, there is a cost for transferring data to a different region. • $0.0036 per GB / Month

kelmryan1

B , there is not admin effort for bringing it back

802c4ffOption: A

it's not possibile to automate the moving from ebs to ebs archive so i'll go with A, that also cost less

xBUGxOption: D

i know S3 Glacier Deep is much cheaper than S3 Standard IA in optionD but A also says Copy, not move. does it mean it will still keep a copy on the snapshot on EBS? i forgot to vote D

Zahran23Option: A

Option (B) is incorrect due to the following: Archiving is recommended for monthly, quarterly, or yearly snapshots. Archiving daily incremental snapshots of a single volume can lead to higher costs when compared to keeping them in the standard tier. https://docs.aws.amazon.com/ebs/latest/userguide/snapshot-archive.html

Lin878Option: A

I would like to vote "A". we have to focus on the cost as per question.

NSA_PokerOption: B

(A) is incorrect. Although S3 Glacier Deep Archive is cheaper, to copy the monthly EBS snapshot to S3 would leave a container filled with incremental snapshots that would need to be first assembled into a full snapshot before it could be available. Amazon EBS Snapshots Archive stores full snapshots ensuring 'that data is available with minimal administrative effort'.

TwinSparkOption: B

looks like an archivesituation for me https://docs.aws.amazon.com/ebs/latest/userguide/snapshot-archive.html The option A is actually cheaper, but i do not like the word copy, and as far as i know there is no way, without writing custom code, to automate che move of snapshot to glacier and i think that the purposu of this question is to show that you know that there is the snapshot archive option

Arnaud92Option: C

Daily and Monthly Snapshots: Keeping daily snapshots in the EBS snapshot standard tier for 1 month ensures that recent backups are readily available for quick recovery. Incremental Snapshots: Using incremental snapshots reduces storage costs by only capturing and storing the changes made since the last snapshot. This approach minimizes the amount of data transferred and stored, optimizing costs while ensuring that backup data is up to date. Minimal Administrative Effort: This solution requires minimal administrative effort as it leverages existing EBS snapshot functionality and does not require manual intervention to move snapshots to other storage classes or manage additional backup policies.

Arnaud92

nope I am wrong B is correct

f07ed8f

When archive a snapshot, the incremental snapshot is converted to a full snapshot. You need to store the full snapshot every month. 12 FULL snapshots for a year. 7 years would be 84 full snapshots (350TB). The cost would be much more than S3 Deep archive ### When you archive a snapshot, the incremental snapshot is converted to a full snapshot, and it is moved from the standard tier to the Amazon EBS Snapshots Archive tier (archive tier). Full snapshots include all of the blocks that were written to the volume at the time when the snapshot was created. ### https://docs.aws.amazon.com/ebs/latest/userguide/snapshot-archive.html

TanidanindoOption: B

https://docs.aws.amazon.com/ebs/latest/userguide/snapshot-archive.html

Awsbeginner87Option: B

By default, when you create a snapshot, it is stored in the Amazon EBS Snapshot Standard tier (standard tier). Snapshots stored in the standard tier are incremental. This means that only the blocks on the volume that have changed after your most recent snapshot are saved. Some typical use cases include: Archiving the only snapshot of a volume, such as end-of-project snapshots Archiving full, point-in-time incremental snapshots for compliance reasons. Archiving monthly, quarterly, or yearly incremental snapshots. https://docs.aws.amazon.com/ebs/latest/userguide/ snapshot-archive.html

joseantoniopoloOption: B

Maybe B? https://repost.aws/knowledge-center/ebs-copy-snapshot-data-s3-create-volume

xBUGx

i know S3 Glacier Deep is much cheaper than S3 Standard IA in optionD but A also says Copy, not move. does it mean it will still keep a copy on the snapshot on EBS?