Lenovo CD9P 15.36 TB Solid State Drive - 2.5" Internal - U.2 PCIe (NVMe) (PCI Express NVMe 5.0 x4) - Read Intensive

Non-Volatile Memory Express (NVMe) is PCIe high performance SSD technology that provides high I/O throughput and low latency. NVMe interfaces remove SAS/SATA bottlenecks and unleash all of the capabilities of contemporary NAND flash memory. Each of the CD9P SSDs have direct PCIe 5.0 x4 connection, which provides at significantly greater bandwidth and lower latency than SATA/SAS-based SSD solutions. NVMe drives are also optimized for heavy multi-threaded workloads by using internal parallelism and many other improvements, such as enlarged I/O queues.

The ThinkSystem CD9P Read Intensive NVMe PCIe 5.0 SSDs have the following features:

• Based on the Kioxia CD9P-R drives
• Available as 15mm 2.5-inch drives in a hot-swap tray
• Direct PCIe 5.0 x4 connection for each NVMe drive, resulting in up to 14 GBps overall throughput, compared to 7.5 GBps for a PCIe 4.0 connection.
• Also supports PCIe 4.0 and 3.0 host connection for previous-generation servers
• Based on KIOXIA BiCS FLASH Gen 5 TLC flash memory
• Single-port design, optimized for data center class workloads
• Consistent performance and reliability for demanding 24x7 environments
• Designed for high-density storage deployments
• Power loss protection (PLP) and end-to-end data correction
• Supports Self-Monitoring, Analysis and Reporting Technology (S.M.A.R.T).
• SED support for TCG Opal SSC V2.02
• Supports the following specifications:
• PCI Express Base Specification, Revision 5.0
• NVM Express Specification, Revision 2.0
• NVM Express Management Interface, Revision 1.2c

Read Intensive SSDs and Write Intensive SSDs have similar read IOPS performance, but the key difference between them is their endurance -- how long they can reliably perform write operations. Read Intensive SSDs have a better cost/IOPS ratio but lower endurance compared to Write Intensive SSDs. SSD write endurance is typically measured by the number of program/erase (P/E) write cycles that the drive incurs over its lifetime, listed as the total bytes of written data (TBW) in the device specification.