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Operating Systems Linux Red Hat Multipath.conf configuration max_fds Post 302605632 by Tommyk on Thursday 8th of March 2012 03:40:20 AM
Old 03-08-2012
Yeah, most of the settings are the defaults, however this was setup by another colleague of mine who is not working on Linux and i have taken full control. I thought it's better to understand it now rather than when we have some issues in future. I have already come across a fair few other problems which ive had to sort out, and SAN disks and their configurations seemed to be the cause. Not the multipathing settings but elsewhere, udev rules were changed with no knowledge of what they affected... and i have the joyous job of picking through it all conf file by conf file to see what needs resolving.
 

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

NAME
MP_GetMPLogicalUnitProperties - get logical unit properties SYNOPSIS
cc [ flag... ] file... -lMPAPI [ library... ] #include <mpapi.h> MP_STATUS MP_GetMPLogicalUnitProperties(MP_OID oid, MP_MULTIPATH_LOGICAL_UNIT_PROPERTIES *pProps); PARAMETERS
oid The object ID of the multipath logical unit. pProps A pointer to an object ID that has type MP_MULTIPATH_LOGICAL_UNIT_PROPERTIES structure allocated by the caller. With a successful return, this structure contains the properties of the multipath logical unit specified by the object ID. DESCRIPTION
The MP_GetMPLogicalUnitProperties() function gets the properties of the specified logical unit. RETURN VALUES
MP_STATUS_INVALID_PARAMETER The pProps is null or specifies a memory area to which data cannot be written, or when the oid has a type subfield other than MP_OBJECT_TYPE_MULTIPATH_LU. MP_STATUS_INVALID_OBJECT_TYPE The oid does not specify any valid object type. This is most likely to happen if an uninitialized oid is passed to the API. MP_STATUS_OBJECT_NOT_FOUND The oid owner ID or object sequence number is invalid. MP_STATUS_SUCCESS The operation is successful. 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_GetMPLuOidListFromTPG(3MPAPI), MP_GetMultipathLus(3MPAPI), attributes(5) Multipath Management API Version 1.0 SunOS 5.11 15 Feb 2006 MP_GetMPLogicalUnitProperties(3MPAPI)
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