Recover time improvement mechanism after device path failure in a storage system
US11403036B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 13, 2020 |
| Grant date | Aug 2, 2022 |
| Priority date | — |
| Expiry date | Apr 9, 2040 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F11/3433
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A method comprising: receiving, by a first storage node, an instruction to designate a first device file as the first storage node's primary device file for accessing a storage device designating, by the first storage node, the first device file as the first storage node's primary device file for accessing the storage device, the first device file being designated as the first storage node's primary device file for accessing the storage device in response to the first instruction; receiving, at the first storage node, an I/O command that is associated with the storage device; making a first attempt to complete the I/O command by using the first device file, detecting, by the first storage node, an error that is generated in response to the first attempt; designating, by the first storage node, a second device file as the first storage node's primary device file for accessing the storage device.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.