SAS driver-level systems and methods for upgrading firmware for disk array enclosures (DAEs)
US12141436B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | May 23, 2023 |
| Grant date | Nov 12, 2024 |
| Priority date | — |
| Expiry date | May 23, 2043 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F3/0689
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A request is received to upgrade firmware for disk array enclosures (DAEs). Each DAE is reachable by a host server using first and second paths. The first path extends from a first port of a first HBA of the host server to each of a set of first input/output modules (IOMs) in the DAEs. The first IOMs have first SAS expanders to which storage disks are connected. The second path extends from a second port of a second HBA of the host server to each of a set of second IOMs in the DAEs. The second IOMs have second SAS expanders to which the disks are connected. The first port is changed from a first state during which a SAS driver exposes all topology change events to an OS of the host server to a second state during which the SAS driver does not expose all of the topology change events.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.