DRaaS (disaster recovery as a service)
DRaaS (disaster recovery as a service) is a service in which a provider replicates your servers to its cloud and can power them on there, often within minutes, if your main site fails because of ransomware, a power outage or a disaster. It avoids having to maintain a second data center of your own.
How TecnetOne handles it: Disaster Recovery
disaster recovery as a service, cloud disaster recovery, DR site
Related terms
Immutable backup
An immutable backup is a copy that, once written, cannot be changed or deleted for a defined period, not even with administrator credentials. It is one of the strongest defenses against ransomware, because attackers often target backups before encrypting the data.
Microsoft 365 backup
Microsoft 365 backup is an independent copy of a company's email, OneDrive and SharePoint files and Teams chats, stored outside Microsoft. It is needed because, under Microsoft's shared responsibility model, Microsoft keeps the service running but protecting the data is up to the customer: items deleted by mistake, removed by a former employee or encrypted by ransomware cannot be recovered once retention periods expire.
3-2-1 backup rule
The 3-2-1 rule is a backup best practice that calls for three copies of your data, on two different types of storage, with one copy offsite or in the cloud. An extended version, 3-2-1-1-0, adds one immutable or offline copy and zero errors in verified restores, to withstand ransomware.
Business continuity plan (BCP)
A business continuity plan, or BCP, defines how a company keeps its critical operations running during and after a serious disruption, such as a cyberattack, an earthquake or a power failure. It covers people, processes, vendors and technology; the IT disaster recovery plan (DRP) is only one part of it.
BIA (business impact analysis)
A BIA (business impact analysis) is the analysis that identifies which processes are critical to a company and how much damage a disruption of hours or days would cause. It is used to set recovery objectives, such as RTO (how long a process can be down) and RPO (how much data the company can afford to lose), and the priorities of the continuity plan.
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