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Full Discussion: How to find the SAN path?
Operating Systems Linux Red Hat How to find the SAN path? Post 302680753 by mark54g on Thursday 2nd of August 2012 09:18:26 AM
Old 08-02-2012
Actually, another way would to run check your /dev/disk directory for UUIDs that overlap (also run blkid) because much of how your multipath setup works is dependent on the driver you are using.
 

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hbaapi(3C)																hbaapi(3C)

NAME
hbaapi - Fibre Channel Storage Network Industry Association Host Bus Adapter Application Programming Interface (FC SNIA HBA API) DESCRIPTION
The Common HBA API provides a consistent HBA standard interface for accessing information in a Fibre Channel Storage Area Network (SAN) that would be implemented across vendors as a standard 'C' API supported by vendor specific library instances. This API library is thread-safe, but threads should not be cancelled when execution is in the API. The following functions are available in the API for managing a Fibre Channel HBA. This API would be exposed to upper level applications to control SAN functionality. Please refer to for details on structures used. 01. 02. 03. 04. 05. 06. 07. 08. 09. 10. 11. 12. 13. 14. 15. 16. 17. 18. 19. FCP Information Functions require that the applications calling them have an effective user id as that of the root user (euid = 0). 20. 21. 22. SCSI Information Functions require that the applications calling them have an effective user id as that of the root user (euid = 0). 23. 24. FILES
Contains the related data structures and definitions as in AUTHOR
These APIs were developed by Hewlett-Packard Company. SEE ALSO
HBA_GetVersion(3C), HBA_LoadLibrary(3C), HBA_FreeLibrary(3C), HBA_GetNumberOfAdapters(3C), HBA_GetAdapterName(3C), HBA_OpenAdapter(3C), HBA_CloseAdapter(3C), HBA_GetAdapterAttributes(3C), HBA_GetAdapterPortAttributes(3C), HBA_GetPortStatistics(3C), HBA_GetDiscoveredPortAt- tributes(3C), HBA_GetPortAttributesByWWN(3C), HBA_SendCTPassThru(3C), HBA_GetEventBuffer(3C), HBA_SetRNIDMgmtInfo(3C), HBA_GetRNIDMgmt- Info(3C), HBA_SendRNID(3C), HBA_GetFcpTargetMapping(3C), HBA_GetFcpPersistentBinding(3C), HBA_SendScsiInquiry(3C), HBA_SendReportLUNs(3C), HBA_SendReadCapacity(3C), HBA_RefreshInformation(3C), HBA_ResetStatistics(3C). hbaapi(3C)
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