protection domain

In the Ultra Transcenders books

NCP-MCI-7.5

Each book explains protection domain in context, with comparison tables and the common traps.

Terms in this definition

• DR

  Disaster recovery means getting a service running again from another region or site, with success judged by RPO and RTO; uptime SLAs and data retention are different concerns.

• Virtual machines

  Infrastructure-as-a-service compute giving complete control of the operating system, making it a fit for lift-and-shift moves and for software relying on OS-level pieces like COM.

• Storage container

  Raw capacity on a vVols-capable array, presented through its VASA provider and shown in vCenter as a vVols datastore.

• Volume

  Holds non-tabular files sitting in cloud storage under Unity Catalog governance, addressed as /Volumes/<catalog>/<schema>/<volume>. A volume can be external or managed, and WRITE VOLUME or READ VOLUME decide who may use it.

• SCHEDULE

  SCHEDULE EVERY gives simple repeating intervals and SCHEDULE CRON gives exact times, while SCHEDULE REFRESH is just another spelling. All of these set refresh timing on a standalone materialized view or streaming table.

• RPO

  Recovery point objective: how much data, expressed as time, you can afford to lose. In a VM backup policy the smallest achievable RPO is the backup frequency.

Related terms

• Impersonation

  Fraudulent mail that mimics a genuine person or company's address or domain. Defender for Office 365 is what supplies the countermeasures: user protection, domain protection, mailbox intelligence and in-message safety tips.

• vStore

  Protecting one links its namespace to a vStore protection domain. Each is a distinct NFS mount point inside a storage container.