If a user decides to leave a company, they may decide to delete all of their Office 365 data before their final day. Had we not had a backup, we might have lost that data forever.įinally, a user can maliciously delete data. They were old to him, so he just deleted them. The user decided to clean out some old files and didn’t realize the whole organization was sharing those files. Storage Switzerland had this happen a few years ago. The vulnerability isn’t limited to just ransomware. The result is the organization’s “backup” is instantly corrupted. Upon encryption of the data, the Microsoft High Availability feature detects the changed files and replicates them, almost instantly to another storage system and data center.
Organizations need both, even with SaaS-based applications like Office 365.įor example, if ransomware malware breaches an organization and gains access to a user’s OneDrive account, which often shows up as a share on the network, then the malware can encrypt any data to which the user has access. However, backup provides point in time rollback of data. High availability provides near zero interruption and near zero data loss. These steps ensure high availability, but not backups. Ensuring this extreme level of availability means that Microsoft is using replication to instantly position data throughout the environment.
To a large extent, it is immune to server failure, storage system failure or even complete loss of one of the Azure data centers. Microsoft takes extreme measures to make sure the Office 365 service is available.
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