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Full Discussion: Software Multipath
Operating Systems Solaris Software Multipath Post 302079714 by lenux78 on Wednesday 12th of July 2006 11:55:38 AM
Old 07-12-2006
Software Multipath

Hello everybody...

I have a Server conected to a Disk Array through 2 canals of FiberChannel... I've installed RedHat Advance Server 3 and of course i see two device files that refer the same disk: for example: /dev/sda and /dev/sdb are refered to the same Lun... This is the same case for a new Solaris Server...

The fiber channel Cards are Emulex in the case of Linux... I know until now that QLogic Cards resolve the multipath issue and there are so many property software Multipath like SecurePath of HP.

Is there any software Multipath in free software Comunity???

Is there any solution Multipath in the comunity???

I hope you can help me..


Lenux78
 

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MP_GetMultipathLus(3MPAPI)			   Common Multipath Management Library Functions			MP_GetMultipathLus(3MPAPI)

NAME
MP_GetMultipathLus - return a list of multipath logical units SYNOPSIS
cc [ flag... ] file... -lMPAPI [ library... ] #include <mpapi.h> MP_STATUS MP_GetMultipathLus(MP_OID oid, MP_OID_LIST **ppList); PARAMETERS
oid The object ID of the plugin or device product object. ppList A pointer to a pointer to an object ID that has type MP_OID_LIST structure. With a successful return, this contains a pointer to an MP_OID_LIST that contains the object IDs of all the (multipath) logical units associated with the specified plugin object ID. DESCRIPTION
The MP_GetMultipathLus() function returns a list of multipath logical units associated to a plugin. When the caller is finished using the list it must free the memory used by the list by calling MP_FreeOidList. RETURN VALUES
MP_STATUS_INVALID_OBJECT_TYPE The oid does not specify any valid object type. This is most likely to happen if an uninitialized object ID is passed to the API. MP_STATUS_INVALID_PARAMETER The ppList is null or specifies a memory area that cannot be written, or when oid has a type subfield other than MP_OBJECT_TYPE_DEVICE_PRODUCT or MP_OBJECT_TYPE_PLUG IN. MP_STATUS_OBJECT_NOT_FOUND The oid owner ID or object sequence number is invalid. MP_STATUS_SUCCESS The operation is successful. MP_STATUS_FAILED The plugin for the specified object ID is not found. MP_STATUS_INSUFFICIENT_MEMORY A memory allocation failure occurred. ATTRIBUTES
See attributes(5) for descriptions of the following attributes: +-----------------------------+-----------------------------+ | ATTRIBUTE TYPE | ATTRIBUTE VALUE | +-----------------------------+-----------------------------+ |Interface Stability |Standard: ANSI INCITS 412 | | |Multipath Management API | +-----------------------------+-----------------------------+ |MT-Level |Safe | +-----------------------------+-----------------------------+ SEE ALSO
libMPAPI(3LIB), MP_GetMPLogicalUnitProperties(3MPAPI), attributes(5) Multipath Management API Version 1.0 SunOS 5.11 15 Feb 2006 MP_GetMultipathLus(3MPAPI)
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