Read I/O processing techniques using remote mapping resolution with logical address space slicing
US12093187B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 31, 2023 |
| Grant date | Sep 17, 2024 |
| Priority date | — |
| Expiry date | Mar 31, 2043 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F2212/657
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
Logical address space portions and virtual layer blocks (VLBs) can be partitioned into multiple sets. Each of multiple nodes in a system can be assigned exclusive ownership of one of the multiple sets. In at least one embodiment, for a read I/O which is received at a first node and directed to a logical address LA1 that is owned by a second node, the first node can request that the second owning node perform resolution processing for LA1. The second node can return either a VLB address or a PLB address based on whether the second node owns a VLB used in mapping LA1 to a corresponding physical location PA1 which includes content C1 stored at LA1. The second node can set a flag in its response to indicate whether a returned address is a VLB address or a PLB address.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.