Data replication is the process of copying data continuously or periodically from one system to another, for example from an office server to a cloud data center, so a ready copy exists if the original fails. Unlike a backup, a replica also mirrors errors and ransomware encryption, so it does not replace a backup with version history.
Go deeper on the TecnetBlog: What Is Data Replication
synchronous replication, asynchronous replication, database replication, data mirroring, storage replication
Related terms
Google Workspace backup
Google Workspace backup is an independent copy of an organization's Gmail messages, Drive files, calendars and contacts, stored outside the Google environment. Under the shared responsibility model, Google keeps the service available, but protecting data against deletion, ransomware or departing staff is the customer's responsibility; the native trash and retention settings have limits.
Point-in-time recovery
Point-in-time recovery (PITR) is the ability to restore a system, database or file to the exact state it was in at a specific moment, for example just before an accidental deletion or a ransomware encryption. It depends on keeping multiple versions or change logs, and the available window is set by the service's retention period.
Ransomware recovery
Ransomware recovery is the process of containing the incident, removing the attacker's access and restoring systems and data to a clean, verified state. It usually includes isolating devices, investigating how the attacker got in, restoring from immutable or isolated backups and confirming no malware remains; paying the ransom does not guarantee the data will be recovered.
Hot, warm and cold sites
Hot, warm and cold sites are the three types of alternate site where an organization can resume IT operations if its primary site becomes unusable. A hot site has replicated systems and data ready to run within minutes or hours; a warm site has equipment in place but needs data loaded; a cold site offers only space and basic infrastructure.
Recovery testing
Recovery testing is a planned exercise in which data, systems or entire services are restored from backups to confirm that the information is intact and can be recovered within the agreed RTO (recovery time objective). Tests range from restoring a random file to bringing up a full server in an isolated environment, and each test is documented with its result.
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