SAA-C03 Exam - Question 841

Question

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?

Examice · Accepted Answer

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.

Scheldon · Answer

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

rondelldell · Answer

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

xBUGx · Answer

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

802c4ff · Answer

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

kelmryan1 · Answer

B , there is not admin effort for bringing it back

xBUGx · Answer

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?

joseantoniopolo · Answer

Maybe B?

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

Awsbeginner87 · Answer

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

Tanidanindo · Answer

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

Arnaud92 · Answer

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.

TwinSpark · Answer

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

NSA_Poker · Answer

(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'.

Lin878 · Answer

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

Zahran23 · Answer

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

SAA-C03 Exam - Question 841

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