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From Prasenjit Sarkar <>
Subject Re: What is the merit of incremental backup
Date Thu, 14 Jul 2016 16:46:10 GMT
Hi Satoshi

You are correct that incremental backups offer you the opportunity to
reduce the amount of data you need to transfer offsite. On the recovery
path, you need to piece together the full backup and subsequent incremental

However, where incremental backups help is with respect to the RTO due to
the data reduction effect you mentioned. The RPO can be reduced only if you
take more frequent incremental backups than full backups.

Hope this helps,

On Wed, Jul 13, 2016 at 11:54 PM, Satoshi Hikida <> wrote:

> Hi,
> I want to know the actual advantage of using incremental backup.
> I've read through the DataStax document and it says the merit of using
> incremental backup is as follows:
> - It allows storing backups offsite without transferring entire snapshots
> - With incremental backups and snapshots, it can provide more recent RPO
> (Recovery Point Objective)
> Is my understanding correct? I would appreciate if someone gives me some
> advice or correct me.
> References:
> - DataStax, "Enabling incremental backups",
> Regards,
> Satoshi

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