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AWS Backup not transitioning to cold storage

0

Hi,

Problem statement: AWS Backup job is created at the production region and moved to cross region but it is not moving from hot to cold storage as per the selected criteria.

Info: Backup type - EBS volumes backup Frequency - Daily Policy - After 1 day in warm transition to cold, 91 days in cold

Manual Movement - It changes storage if I manually move the snapshot from warm to cold. Please suggest.

Thanks

asked 4 months ago273 views
3 Answers
2

Hi,

Have a look at https://aws.amazon.com/blogs/storage/automating-backups-and-optimizing-backup-costs-for-amazon-efs-using-aws-backup/

It says:

Each lifecycle rule contains an array of transition objects specifying how long in 
days before a recovery point transitions to cold storage, or is deleted. As of now, 
the transition to cold storage is ignored for all resources except for Amazon EFS.

The blog is from 2021: so, I am not sure if this restriction to EFS only still holds and I couldn't find any confirmation in up-to-date public doc.

But, at least , you have an hint for further investigation. Sorry, for not finding the public doc corresponding page.

Update: I now found the page https://docs.aws.amazon.com/aws-backup/latest/devguide/backup-feature-availability.html#features-by-resource

2 gaps mentionned for EBS but since PITR doesn't apply to EBS, you may be in the "Full management" use case which is not supported.

DIdier

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answered 4 months ago
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reviewed 4 months ago
0

Hi Didier,

Thanks for the info, I am going through it. Update: When I create a backup plan, it shows that the Archive EBS snapshot is available at least monthly. I am selecting daily frequency.

Also, it worked fine earlier but when we moved to another region, we started facing this issue.

messageabout cold storage lifecycle

The document shared by you also shows cold storage lifecycle availability for EBS The matrix showing lifecycle to cold storage

Thanks

answered 4 months ago
0

EBS can transfer monthly backups to cold storage. The intent of cold storage is to archive a recovery point for a duration of time greater than 90 days (this is the minimum). Realistically this should be used for long term retention of years. The reason why this is not functional for shorter term is due to how a full backup and the associated incremental backups work together to be able to provide the full recovery point for a selected time frame. In other words, the full and associated incremental need to be in the same tier to maintain consistency with the recovery points.

AWS
answered 3 months ago

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