backup repository

In the Ultra Transcenders books

VBR-13VRO-13

Each book explains backup repository in context, with comparison tables and the common traps.

Terms in this definition

• Azure AI Search replica

  Additional copy of a search service's engine and indexes. Replicas spread queries for load balancing and improve availability, so adding them is the fix when queries are throttled with HTTP 503.

• Metadata

  Describes data rather than being the data itself, for instance how a file is laid out or what rows each chunk contains, so tools can read things efficiently.

• Table options

  Set only at creation with OPTIONS, these key-value storage settings can't be altered or dropped afterwards; on Delta tables they also show up among the table properties.

• RANGE

  Usable only in visual calculations, this DAX function picks a span of rows along an axis counted from the current one, say the previous six. Think of it as a simpler WINDOW, handy for moving totals.

• LSDOU

  The sequence in which Group Policy is processed: the local policy first, followed by site, domain and organisational unit policies. The nearest, last-processed setting takes effect unless Enforced or Block Inheritance alters that.

• SMB

  Protocol for Windows file shares, used by Azure Files and supporting authentication based on identity.

• NFS

  Network File System, a file-sharing protocol from the Unix world, available on Azure Files, Azure NetApp Files and Blob Storage (as NFSv3).

• Shares

  A relative weighting for dividing a contended resource such as memory, CPU, network bandwidth or disk I/O: double the shares earns double the entitlement. Reservations, by contrast, are guarantees and limits are ceilings.

Related terms

• Quantum DXi

  A deduplication storage appliance from Quantum, supported as a backup repository in Veeam Backup & Replication.