The fastest managed disk type in Azure, frequently offering more IOPS than a typical SQL Server workload needs.
Read more: Microsoft Learn
In the Ultra Transcenders books
Each book explains Ultra Disk in context, with comparison tables and the common traps.
Terms in this definition
- IOPS
Input/output operations per second measure how fast a disk performs; a P50 disk, for instance, offers 7,500.
- SQL Server
The relational database from Microsoft that organisations host and run themselves, in their own data centres or on VMs. Its engine also sits underneath the Azure SQL services and SQL database in Fabric.
- Workload
Also called an experience: a Fabric toolset aimed at one job role, e.g. Data Factory, Data Engineering, Data Warehouse, Real-Time Intelligence or Power BI. Each keeps its data in OneLake.
Related terms
- Premium SSD ZRS
Variant of Premium SSD that writes synchronously to three availability zones so the disk survives the loss of a datacentre. Ultra Disk and Premium SSD v2 do not offer it.