Append only streams for storing data on a solid state device

US10754549B2 · kind B2 · utility

Assignee

• MICROSOFT TECHNOLOGY LICENSING, LLC · US

Inventors

• Bryan Stephen Matthew · Seattle, US
• Aaron W. Ogus · Kirkland, US
• Vadim Makhervaks · Austin, US
• Laura Marie Caulfield · Redmond, US
• Rajsekhar Das · Kirkland, US
• Scott Chao-Chueh Lee · Bellevue, US
• Omar Carey · Redmond, US
• Madhav Himanshubhai PANDYA · Redmond, US
• Ioan Oltean · Redmond, US
• Garret J. Buban · Redmond, US
• Lee E. Prewitt · Mercer Island, US

Key dates

• Filing date: May 30, 2018
• Grant date: Aug 25, 2020
• Expiry date: May 30, 2038

Classification

• Technology area (CPC G): Physics
• CPC primary: G06F2212/7202
• WIPO field: Computer technology
• WIPO sector: Electrical engineering

Abstract

An append-only streams capability may be implemented that allows the host (e.g., the file system) to determine an optimal stream size based on the data to be stored in that stream. The storage device may expose to the host one or more characteristics of the available streams on the device, including but not limited to the maximum number of inactive and active streams on the device, the erase block size, the maximum number of erase blocks that can be written in parallel, and an optimal write size of the data. Using this information, the host may determine which particular stream offered by the device is best suited for the data to be stored.