Bus standard used by NVMe drives, GPUs and similar cards. With Discrete Device Assignment, one VM gets an entire such device to itself.
Also called PCI Express.
Read more: Microsoft Learn
In the Ultra Transcenders books
Each book explains PCIe in context, with comparison tables and the common traps.
Terms in this definition
- Standard deployment type
A Foundry deployment type billed per token that keeps processing of prompts and responses inside the Azure geography of the resource, meeting data residency needs at lower volumes.
- NVMe
Flash Optimized Azure Managed Redis keeps keys and hot values in memory while moving colder values, roughly 80 percent of capacity, onto this high-speed flash storage.
- Discrete Device Assignment
A Hyper-V capability that hands an entire PCIe device, a graphics card or NVMe drive for example, directly to a single virtual machine.
Related terms
- PCIe
NVMe drives, HBAs, NICs and other adapters attach to a server through this expansion bus. NVMe devices are supported by vSAN only when plugged straight into a PCIe slot, not when placed behind a tri-mode RAID controller.
- SR-IOV
A standard allowing a single PCIe device to present itself as multiple virtual functions, each seen as its own device by the hypervisor or guest. Large numbers of these can exhaust a host's interrupt vectors.