This protects Exchange Online and OneDrive for Business data by backing it up directly to Barracuda Cloud Storage. Barracuda Cloud-to-Cloud Backup can be used as an add-on to an on-premises Barracuda Backup appliance, or as a standalone subscription without an appliance.
For Exchange Online,Barracuda Cloud-to-Cloud Backup protects all email messages, including allattachments, as well as the complete folder structure of each users’ mailbox. In OneDrive for Business, all files under the Documents Library, including the entire folder structure, are protected.
Why you need to backup Office 365
Accidental deletion by users is the most frequent cause of data loss in a SaaSenvironment such as Microsoft Office 365; however, there are other ways where data can be lost. Application errors or mistakes in processing can cause data to be lost or overwritten, and there is always the risk of malicious deletion by employees with access to the data. A threat that has come to prominence recently is ransomware, which encrypts data and renders it inaccessible.
Office 365 itself focuses primarily on ensuring thatservice and data availability is not disrupted, but Microsoft does provide customers two options for data recovery:
- Recycle Bin: Data that has been recently deleted by users can be recovered from the Recycle Bin (for OneDrive), or the Deleted Items and Recoverable Items folders (for Exchange Online). However, these are subject to retention periods as listed below, after which data is permanently deleted and no longer available.
- Document Versioning: If the Document Versioning feature is turned on, OneDrive for Business will retain a number of previous versions of each document that has been amended, and end users are then able to restore back to any of these previous versions. However, this does not provide protection against unintentional or accidental deletion, as all versions of a document are removed when the current version is deleted.
Organizations adopting Office 365 should recognizethat there are serious limitations inherent in both of these options:
- These options operate at an individual item level, so they are not suitable for the recovery of larger quantities of data such as entire folders or mailboxes.
- It is not feasible to do a point in time data restore using either of these options without considerable additional processing.