I am looking for some guidance for the backup data export sizing with Kasten. Let’s say, my case has 10TB production data, daily backup with 30 restore points, 5% delta change daily. I assume the compression and deduplication will save up 50%. Does it mean that I need to have at least 10TBx30x50% =150TB for my backup repository ?
I do see in a lab that the second backup is much smaller than the first backup. Is there any incremental backup / global deduplication in the backup data export behind the scene ?
Chris
Best answer by Geoff Burke
ChrisWong wrote:
Hi
I am looking for some guidance for the backup data export sizing with Kasten. Let’s say, my case has 10TB production data, daily backup with 30 restore points, 5% delta change daily. I assume the compression and deduplication will save up 50%. Does it mean that I need to have at least 10TBx30x50% =150TB for my backup repository ?
I do see in a lab that the second backup is much smaller than the first backup. Is there any incremental backup / global deduplication in the backup data export behind the scene ?
Chris
Hi Chris,
So as everyone has said Kasten will leverage incremental snapshots and then there is a certain level of deduplication and compressions as well with the offload. The offloads can then be sent to S3 or NFS. A lot of course will depend on your workloads and rate of change. You can find more info in the Kasten documentation https://docs.kasten.io/latest/usage/protect.html
I am looking for some guidance for the backup data export sizing with Kasten. Let’s say, my case has 10TB production data, daily backup with 30 restore points, 5% delta change daily. I assume the compression and deduplication will save up 50%. Does it mean that I need to have at least 10TBx30x50% =150TB for my backup repository ?
I do see in a lab that the second backup is much smaller than the first backup. Is there any incremental backup / global deduplication in the backup data export behind the scene ?
Chris
Hi Chris,
So as everyone has said Kasten will leverage incremental snapshots and then there is a certain level of deduplication and compressions as well with the offload. The offloads can then be sent to S3 or NFS. A lot of course will depend on your workloads and rate of change. You can find more info in the Kasten documentation https://docs.kasten.io/latest/usage/protect.html
Hello, Are the snapshots created during the backup process are also incremental?
Also, I am trying to understand that when the restore points (snapshots and export) are deleted, how do we recover full copy of data from other restore points, if the backup is incremental.
