Topic 1 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?
Keep the daily snapshot in the EBS snapshot standard tier for 1 month. Copy the monthly snapshot to Amazon S3 Glacier Deep Archive with a 7-year retention period.
Continue with the current EBS snapshot policy. Add a new policy to move the monthly snapshot to Amazon EBS Snapshots Archive with a 7-year retention period.
Keep the daily snapshot in the EBS snapshot standard tier for 1 month. Keep the monthly snapshot in the standard tier for 7 years. Use incremental snapshots.
Keep the daily snapshot in the EBS snapshot standard tier. Use EBS direct APIs to take snapshots of all the EBS volumes every month. Store the snapshots in an Amazon S3 bucket in the Infrequent Access tier for 7 years.
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コメント(17)
- 正解だと思う選択肢: 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
👍 8Scheldon2024/06/03 - 正解だと思う選択肢: 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
👍 7rondelldell2024/04/12 - 正解だと思う選択肢: 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
👍 5Zahran232024/07/15
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