Western Digital’s new storage solutions for data centre architecture

Author: Isha Jain

From the cloud, to the edge, to the enterprise, data centre architects are deploying higher levels of flash to unlock the potential of AI, object storage, file sharing and more. At the same time, they are laser focused on controlling spend and must find solutions to help them manage, scale and utilise storage assets more efficiently. ​

This is driving a growing trend to disaggregate and share NVMe flash over fabric (NVMe-oF) for improved performance, availability and flexibility of storage resources. Helping customers simplify NVMe/NVMe-oF storage deployment, Western Digital has announced new solutions:

• Enhanced OpenFlex Data24 3200 NVMe-oF JBOF/Storage Platform
• Next generation RapidFlex A2000 and C2000 NVMe-oF fabric bridge devices (FBDs
• New Ultrastar DC SN655 PCIe Gen 4.0 dual-port NVMe SSD

These new storage solutions are enabling an ecosystem, providing more flexibility and choice for simplifying solutions deployment for customers. It has vertical integration capabilities targeting both ends of the ethernet wire to deliver solutions, where data travels from the server initiator to the storage target.

Fully integrated OpenFlex Data24 3200 NVMe-oF Storage Platform

The platform extends the performance of NVMe flash to a shared storage architecture. By separating storage resources from compute, and sharing it over ethernet, OpenFlex Data24 becomes widely available to multiple applications and servers, allowing for greater resource control and scalability, leading to improved storage utilisation without overprovisioning.

Using RapidFlex FBDs, the Data24 3200 allows up to six hosts to be attached without a switch. A switched environment allows scaling even more hosts and Data24 platforms, providing scale-out or scale-up capabilities from hundreds of terabytes to petabytes of its flash with very low application latency. In addition to RDMA over converged Ethernet (RoCE), it now features new TCP connection support. Available in a 2U 24-bay platform and backed with a five-year limited warranty, it is built to deliver low power, high availability and enterprise-class reliability with up to 368TB in a single platform of low latency dual-port PCIe Gen 4.0 SSDs.

Next generation RapidFlex FBDs: the A2000 ASIC and the C2000 fabric bridge PCIe adapter card

The RapidFlex family of NVMe over fabric bridge devices provide the foundational building blocks for OEMs/ODMs and large organisations taking a DIY approach to their software-defined infrastructure to enable next generation workloads based on highly scalable shared storage across an ethernet fabric. These second generation low-power, high-performance FBDs come in two versions: the RapidFlex A2000 controller, and the RapidFlex C2000 that places the A2000 chip on a PCI adapter for powering solutions.

The new FBD is a unique state machine that exports the PCI bus over ethernet, allowing externally connected SSDs to appear as if they were local to the server. The new family also doubles performance with an additional 100GbE port matched to 16 lanes of PCIe Gen 4.0, and provides a PCIe root complex within all NVMe all-flash arrays, making it easy to qualify and deploy. The new FBDs add initiator mode capability to the existing target mode capability, so customers can now deploy more cost-effective and lower power initiator cards in their servers instead of a conventional ethernet NIC for NVMe-oF connectivity.

Enterprise-class Ultrastar DC SN655 Dual-Port NVMe SSD

This is a cost-effective, dual port, high capacity PCIe Gen 4.0 NVMe SSD designed for cloud, OEM and enterprise customers who need high-performance, high capacity storage for a variety of applications and workloads such as disaggregated storage, object storage, storage servers and other mission-critical applications.

The Ultrastar DC SN655 is a vertically integrated SSD that provides a simple, scalable, single-port or dual-port path to ensure continuous data access for enterprise high availability requirements. It also expands capacities from new 3.84TB to 15.36TB, targeting both storage and mixed workload compute applications, and increases drive reliability to 2.5 million hours mean time between failures (projected). Additionally, it reaches more than one million maximum random read IOPs and enhanced Qos for large unstructured workloads. It comes in a drop-in U.3 15mm form factor and is U.2 backwards compatible. It also offers additional enterprise features like power-fail protection and end-to-end data path protection to ensure data is available when needed.

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