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What is Recovery Point Objective?
If your system breaks, how much information are you willing to lose when your system is recovered? If you only back up once per day your RPO is essentially eight hours. If at the end of the day you finish work and your system crashes and all data is lost, you have then lost the full eight hours of work. If data is lost half way through the day, your effective Recovery Point at that point is four hours, but don’t confuse that with your objective which is set at eight hours.
RPO can and should be calculated differently for different systems you use. Your Exchange Mail Server and SQL Servers should probably have an RPO of 15 minutes to one hour. DNS servers and a static website can do fine with a 24 hour RPO since they rarely change.
What is Recovery Time Objective?
If your system breaks, how long do you want to be down? How soon do you need your system back up and running? Whether it is a week, a day, an hour or one minute, whatever time you establish, that is your RTO or Recovery Time Objective. Think about what your business needs and you can come up with one component of disaster recovery/business continuity planning, your RTO. Next up, you need to start thinking about your Recovery Point Objective.
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Know what you are backing up and know what you need to back-up.They are not always the same thing.During the course of writing this series of blogs on backup and disaster recovery I thought I [...]
Future Posts
Follow Kevin's future blogging at www.noloki.com
Symantec Pulls the Plug on Their Cloud Backup Offering
The shutdown of cloud backup provider Nirvanix does not surprise me as it appeared to me to be somewhat ill conceived. While Backup Exec is good for conventional backup to tape and other media, is [...]
The HIPAAcrisy of Healthcare.gov
Kathleen Sebelius at a House Energy and Commerce Committee hearing Wednesday said she is responsible for the problems with Healthcare.gov. Will she extend her ownership to the violations of privacy regulations? Will she own the pathetic demonstration that political expediency means more to HHS than the commitment to applicants’ privacy? Will HHS be a little more forgiving the next time another organization gets investigated for a HIPAA breach or will Tavenner and Sebelius be HIPAAcritical?