Quickest possible store to Immutable S3

[ortec-RW]

hi

We're evaluating S3 Object storage in Cloud with immutability (AWS/Wasabi). We need it for VM and NAS backups. They way they handle the Cloud-tier is what I am focussing on. I want to know the smallest possible RPO. In other words, what's that smallest possible Cloud off-loading I can set ?

In NAS backup I can set a Retention in Days for the Local Repository. Then I can set Archive policy in years and months to the Cloud Repository.
But if days is the smallest interval, this means I can never offload quicker then that. If I set the days to 1, it will start archiving to Cloud on day 2. But what if I loose my local repository (Ransomware) ? I always loose 1 day of data (RPO). I would perhaps like to back it up 5 times a day and offload to cloud ASAP. I would then not loose more then 1/5th of a day in RPO.

Off course, a huge dataset would probably never get to reach the cloud before the next backup interval, depending on bandwidth. But a smaller dataset would. I cannot use a copy-job either since that doesn't work on NAS shares backup types. And using on-premise S3 is bound to the same 1 day rule too.

Is less then 1-day immutabilty a dream ?

[Gostev]

I would perhaps like to back it up 5 times a day and offload to cloud ASAP.

Then you should use the Copy policy, instead of the Move policy. You need v10 or later for this.

NAS Backup is a different story though, it does not support either at the moment. It uses a totally different approach than VM backup anyway, since it backs up files not images.

[dalbertson]

Also worth noting that immutability is only on AWS and not wasabi currently. Our immutability is using the object lock api and wasabi currently does not support that api.

[ortec-RW]

@Gostev
Thanks for the feedback. I got it now.

@Dalbertson
Thanks for the heads up.