Welcome to our discussion on dedicated virtual machine host capacity type, exploring its functionalities, use cases, and limitations.
What is a Dedicated Virtual Machine Host?
A dedicated virtual machine host empowers users to operate compute virtual machine instances on a server exclusively dedicated to a single tenant, eliminating the sharing aspect with other customers. Unlike shared infrastructure, where resources are distributed among multiple users, dedicated hosts offer isolated environments tailored to individual requirements. Upon creation, users are billed for the dedicated virtual machine host itself, without incurring charges for individual virtual machine instances hosted on it.
Selecting Host Shapes
When setting up a dedicated virtual machine host, users choose a specific shape that defines available capacity and compatible instance types. Each shape allocates a portion of OCPUs (Oracle Cloud Processing Units) for virtual machine management, distinguishing between billed and available OCPUs.
Use Cases of Dedicated Virtual Machine Hosts
Dedicated virtual machine hosts serve diverse purposes, including:
- Compliance and Regulatory Requirements: By ensuring usage of non-shared infrastructure, dedicated hosts facilitate compliance with stringent regulatory standards demanding isolation.
- Host-based Licensing Compliance: Certain licensing agreements necessitate licensing the entire server, a requirement seamlessly met through dedicated virtual machine hosts.
Exploring Host Shapes
Diverse dedicated virtual machine host shapes cater to varying workload demands, offering different combinations of usable OCPUs and memory. For instance, DVH.Standard3.64 provides 60 usable OCPUs and 960 GB of usable memory, illustrating the host’s versatility.
Furthermore, each host shape supports specific series of virtual machine instances, ensuring compatibility and optimal performance. For instance, DVH.Standard2.52 supports VM.Standard2 series, streamlining deployment processes.
Limitations of Dedicated Virtual Machine Hosts
While dedicated virtual machine hosts offer extensive functionalities, certain features remain unsupported, including:
- Autoscaling: Dynamic resource allocation based on workload fluctuations.
- Capacity Reservations: Reserving capacity in advance for specific instances.
- Instance Configurations: Customizing instance settings for tailored performance.
- Instance Pools: Managing groups of instances for streamlined operations.
- Burstable Instances: Instances with flexible resource usage based on demand.
- Remote Migration: Transferring instances between different hosts for optimization.
In essence, dedicated virtual machine hosts provide a robust infrastructure solution with tailored isolation and performance benefits, albeit with some limitations on specific features.