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User Guide
1.1.1 Servicing Features
The OpenFlex F3100 and E3000 are equipped with several features that make servicing simpler and safer.
Every CRU component has been designed with toolless removal features.
The BMC Module, Fan Module, PSU, and F3100 devices are all hotswappable components. This document
provides full instructions on how these features operate in the
1.1.2 Composable Infrastructures
An emerging category of datacenter infrastructure that seeks to disaggregate compute, storage, and
networking fabric resources into shared resource pools that can be available for on-demand allocation (i.e.,
"composable"). Composable occurs at the software level, disaggregation occurs at the hardware level.
Western Digital's vision for Open Composable Infrastructures is based on four key pillars:
• Open
◦ Open in both API and form factor
◦ Designed for robust interoperability of multi-vendor solutions
• Scalable
◦ Ability to compose solutions at the width of the network
◦ Enable self-organizing systems of composable elements that communicate horizontally
• Disaggregated
◦ Pools of resources available for any use case that is defined at run time
◦ Independent scaling of compute & storage elements to maximize efficiency & agility
• Extensible
◦ Inclusive of both disk and flash
◦ Entire ecosystem of composable elements managed & orchestrated using a common API
framework
◦ Prepared for yet-to-come composable elements – e.g., memory, accelerators
1.1.2.1 Open Composable
The Western Digital Open Composable Infrastructure (OCI) uses a common API to manage and
coordinate with all fabric-attached storage including pools of flash and disk. The infrastructure also
supports the management of networking and compute resources. The API is used for all managed
elements to accelerate the ability to use disaggregated resources where components are no longer sub-
components, but core elements connected to the network.
1.1.2.2 Open Composable API (OCAPI)
Western Digital's Open Composable API is a RESTful interface for OpenFlex that enables a Unified Fabric
Control Plane for Storage Fabric Devices. This allows for composing disaggregated storage resources—
with compute, networking, and memory—into virtual systems in the future. These virtual systems will be
dynamically provided to the right application at the right time, ensuring SLAs can be met automatically.
• Volume management (create / modify / delete namespaces, format media)
1.1 OpenFlex™ F3100 and E3000
Management (page 29)
section.
1. Overview
3
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