KIOXIA Corporation (hereinafter “KIOXIA”) has developed a prototype of the PCIe® 5.0 compatible NVMe™ SSD “KIOXIA CD9P Series” that contributes to system improvement by increasing GPU utilization rate in generative AI and high performance computing (HPC) applications . The “KIOXIA CD9P Series” adopts the 8th generation BiCS FLASH™ 3D flash memory TLC and will be demonstrated at “HPE Discover 2025” to be held in Las Vegas from June 23rd to 26th, and samples will be shipped to limited customers.
With the rise of AI servers, storage requirements are becoming increasingly high, including high throughput, low latency, and stable performance, which are essential for increasing the utilization rate of the GPUs that play a central role inside the servers. The KIOXIA CD9P series is an SSD developed to meet the speed and responsiveness required in next-generation environments such as generative AI, machine learning, and HPC, while constantly supplying data to the GPUs and allowing them to operate as efficiently as possible.
The KIOXIA CD9P series SSDs use the 8th generation BiCS FLASH™, which uses advanced CBA (CMOS directly bonded to array) technology to significantly improve power efficiency, performance, and gigabyte density compared to the previous generation [Note 1] , and achieves approximately double the memory capacity of the previous generation SSD [Note 2] . In addition, the new products have improved performance, power consumption, and TCO (total cost of ownership) by suppressing heat generation and strengthening thermal management.
In terms of performance improvements, compared to the previous generation product [Note 2] , the new model achieves a maximum improvement of approximately 125% in random writes, approximately 30% in random reads, approximately 20% in sequential reads, and approximately 25% in sequential writes.
In addition, the performance per watt of power consumption has been improved by approximately 60% in sequential reads, 45% in sequential writes, 55% in random reads, and 100% (x2) in random writes (15.36TB capacity model).
Main features of the “KIOXIA CD9P Series”:
- Compliant with PCIe® 5.0, NVMe™ 2.0 and NVMe-MI™ 1.2c standards
- Supports Open Compute Project Datacenter NVMe™ SSD specification v2.5
(some specifications are not supported) - 2.5 inch (15mm thick) and EDSFF E3.S form factor
- Lead-intensive (1 DWPD) and mixed-use (3 DWPD) durability models available
- Sequential performance (128 KiB/QD32): Read 14.8 GB/s, Write 7 GB/s
- Random performance (4 KiB): Read 2,600 KIOPS (QD512), Write 450 KIOPS (QD32)
- The 2.5-inch model comes in capacities up to 61.44 TB, while the E3.S model comes in capacities up to 30.72 TB.
- Supports CNSA 2.0 compliant cryptographic algorithms [Note 3]
[Note 1] Comparison with 6th generation BiCS FLASH™
[Note 2] Comparison with “KIOXIA CD8P Series”
[Note 3] In preparation for the threat posed to conventional encryption algorithms by quantum computers, the “KIOXIA CD9P Series” uses the Leighton-Micali Signature (LMS) algorithm, approved by CNSA 2.0 [Note 4], as a digital signature algorithm to prevent firmware tampering . The data encryption algorithm used in the “KIOXIA CD9P Series,” Advanced Encryption Standard (AES-256) with a key length of 256 bits, is also approved by CNSA 2.0.
[Note 4] CNSA 2.0: Commercial National Security Algorithm Suite 2.0
*2.5 inches refers to the SSD form factor, not the physical size.
*Read and write speeds vary depending on the host system, read and write conditions, file size, etc.
*The information provided is subject to change without notice.
*Memory capacity: Calculated based on 1 GB (1 gigabyte) = 1,000,000,000 (10 to the power of 9) bytes and 1 TB (1 terabyte) = 1,000,000,000,000 (10 to the power of 12) bytes. However, computer operating systems that use 1 GB = 1,073,741,824 (2 to the power of 30) bytes as the drive capacity will display a smaller capacity than stated. Drive capacity will vary based on file size, formatting, settings, software, operating system, and other factors.
*1 KiB (1 kibibyte) is calculated based on 1,024 bytes (2 to the power of 10) bytes.
*IOPS: Input Output Per Second (number of reads and writes per second)
*HPE is a trademark of Hewlett Packard Enterprise Company or its affiliates.
*NVMe and NVMe-MI are registered trademarks or trademarks of NVM Express, Inc. in the United States and/or other countries.
*PCIe is a registered trademark of PCI-SIG.
*Other company names, product names, and service names may be trademarks of their respective companies.
*The information contained in this document (product prices/specifications, service details, contact information, etc.) is current as of the date of announcement and may be changed without notice.
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