System and method for improved handling of fiber channel remote devices
US6895453B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 15, 2001 |
| Grant date | May 17, 2005 |
| Priority date | — |
| Expiry date | Jan 18, 2023 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F11/2294
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
In traditional Fiber Channel systems, remote devices connected to the Fiber Channel network using a bridge or included in a storage enclosure are not tracked. If a remote device, such as a SCSI disk device, is removed or swapped, data errors such as data corruption can result. A device identifier corresponding to the remote device is obtained from the remote device. The device identifier may include the remote device's serial number and other identifying information pertaining to the device. The first time the remote device is used, the device identifier is obtained and stored by the Fiber Channel device using the remote device. This device identifier is compared with subsequently obtained identifiers. If the identifiers match, communication with the remote device occurs. However, if the identifiers do not match, an error condition is raised indicating that the remote device has been removed or swapped.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.