Access "Ask the Experts: RTOs and RPOs"
This article is part of the Vol. 7 No. 7 September 2008 issue of Using two midrange backup apps at once
Q: Is there a standard ratio between RTOs and RPOs, or are they independent of each other? A. There's no "standard" ratio or relationship between a recovery time objective (RTO) and a recovery point objective (RPO). But one can affect the other. The RTO is the amount of time in which a system must be recovered in the event of an interruption, and the RPO is the point in time to which a system's data must be recovered. Depending on the type of application and the business function it supports, the RTO and RPO can be miles apart. An application providing a critical service relying on static data may have an RTO of one hour, but an RPO of one day. The app must be up in one hour, but using yesterday's data is OK. It's possible to miss an RTO while trying to meet an RPO if it takes so long to restore the data to meet the RPO that the app ends up being down longer than allowed. --Pierre Dorion, data center practice director and senior consultant, Long View Systems Inc. Access >>>
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Are full backups a thing of the past?
by Kevin Suttle
In the not-so-distant past, we relied on tape backups for operational recovery, disaster recovery and long-term data retention. But are full nightly backups to tape still needed now that we have new disk-based technologies like snapshots and continuous data protection?
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Ask the Experts: RTOs and RPOs
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Continuous data protection (CDP) technology is now a viable alternative to traditional backup software and storage system-based replication software. But CDP products can vary significantly, especially in the context of different storage architectures. Depending on specific environments, companies may have to evaluate very different criteria before settling on a CDP product.
Disk-to-disk backup enticing in many forms: Survey Says
Disk-to-disk backup enticing in many forms
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Quality Awards IV: On top again: CommVault Galaxy, EMC Retrospect
CommVault's Galaxy solidified its position as the top enterprise backup product by finishing first for the third time in the four years we've conducted the Quality Awards. Among the midrange products, EMC Retrospect retained its crown as group champion.
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From disaster recovery to capacity optimization and dedupe, the next phase of VTL products promises change.
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Backup performance tuning is an art, but identifying infrastructure bottlenecks is more of a strict mathematical exercise once you know the important numbers. And understanding the source of existing and potential bottlenecks makes it easier to find and resolve them.
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by Bob Laliberte
If you have a data migration project in the works, challenge your storage vendor, storage software vendor or third-party consulting firm to deliver a solution that reduces the time, risk and cost of your project.
Don't get stuck with old backup ideas: Best Practices
The time has come to shed your traditional, compartmentalized view of backup and embrace a recovery-centric data management focus.
Keep it simple, stupid: Part deux: Storage Bin 2.0
Are you one of those companies that leaves inactive data on the most expensive architecture and applies stringent (expensive) processes to that same data? If so, wise up!
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