SAS storage will not die, a new generation of 24G+ SAS standard is officially released

This website reported on July 25 that although solid-state drives are gradually shifting to the PCIe physical interface using the NVMe protocol, many applications still rely on SCSI (SAS) technology. On Wednesday local time, the SNIA SCSI Trade Association Forum (STA) and the INCITS/SCSI standards organization launched the 24G+ SAS specification specifically for next-generation hyperscale data center HDDs and SSDs, indicating that SAS will continue to evolve. The SAS speed specification was upgraded to 2.4 GB/s in 2020, and products equipped with this interface are now available, while the new 24G+ standard maintains this speed but adds five new features designed to enhance traditional servers and ultra-large Storage performance in large-scale data centers.

SNIA launches 24G+ SAS standard to improve data storage performance and reliability

Cameron T. Brett, Chairman of the Board of Directors of SNIA STA Forum, said: "24G+ SAS is a great progress for our industry and continues to demonstrate the advancement of SAS technology in the future. Value across a broad spectrum of data storage. These key features span hard drives and solid-state drives and benefit hyperscale data centers as well as traditional servers and storage. SAS and SCSI have been delivering performance, reliability and scalability to data centers for more than 30 years. performance, and 24G+ SAS takes data storage to the next level.”

Key features of the 24G+ SAS standard:

1. Command Duration Limit (CDL): Control HDD latency to ensure operations can operate within specifications. time, thereby improving efficiency and reliability in large data environments.
2. Format Presets: Simplify the management process of CMR and SMR HDD, which is expected to further reduce the number of SKUs in the data center.
3. Logical Purge: Identify and clean up “bad disks” in data sets in hyperscale applications.
4. Rebuild Assistant: Helps discover unreadable partitions that need to be reconstructed from other sources (for SSDs).
5. Persistent Connection: Keep it open to optimize performance, eliminating losses from repeated switching (for high-performance SSDs).

Reference:

• "SNIA SCSI Trade Association Forum and INCITS/SCSI Unveil 24G+ SAS"

The above is the detailed content of SAS storage will not die, a new generation of 24G+ SAS standard is officially released. For more information, please follow other related articles on the PHP Chinese website!