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Special Forums Hardware Filesystems, Disks and Memory Faster way: SAN hd to SAN hd copying Post 303007624 by rino19ny on Sunday 19th of November 2017 02:14:01 AM
Old 11-19-2017
Faster way: SAN hd to SAN hd copying

hi! i got a rhel 6.3 host that already have an xfs filesystem mounted from a SAN (let's call it SAN-1) whose size is 9TB.

i will be receiving another SAN (let's call it SAN-2) storage of 15TB size. this new addition is physically on another SAN storage. SAN-1 is on a Pillar storage while the new one is on a Dell SAN storage.

i supposed brand does not matter here. my initial reaction to move the directories and files from SAN-1 to SAN-2 is either using "tar" or "dd". in both cases, i need to do it online as there is continuous data being duplicated from SAN-1 to tape storage.

is using "tar" or "dd" the only online option? are there better ways?

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hbaapi(3C)																hbaapi(3C)

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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