From the course: Cloud Computing: BC/DR Best Practices
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Identifying processes for backup
From the course: Cloud Computing: BC/DR Best Practices
Identifying processes for backup
- [Instructor] So it's difficult to have a discussion around disaster recovery, even disaster recovery in the cloud, without looking at the tiers, or way that different recovery service levels are defined. So let's go through them. So tier zero basically means there's no off-site data that's being backed up, and so we may do this in our own homes. We have a primary database or a primary disk that may be our laptop computer, and we may be backing up to some external database, like a USB drive, and so that's an example of tier zero. The data's not brought off-site, therefore you run the risk that if there's a fire, or for someplace that building is destroyed, you're going to lose the primary database and the secondary database. Tier one means the information is actually shipped offsite, and doesn't have to be necessarily hardware that's installed. Ultimately it is, basically, we're putting tapes offsite. The ability to…
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