MP_ASSIGNLOGICALUNITTOTPG(3MPAPI)MP_ASSIGNLOGICALUNITTOTPG(3MPAPI)NAMEMP_AssignLogicalUnitToTPG - assign a multipath logical unit to a target
port group
SYNOPSIS
cc [ flag... ] file... -lMPAPI [ library... ]
#include <mpapi.h>
MP_STATUS MP_AssignLogicalUnitToTPG(MP_OID tpgOid, MP_OID luOid);
PARAMETERS
tpgOid
An object ID that has type MP_TARGET_PORT_GROUP. The target
port group currently in active access state that the adminis‐
trator would like the LU assigned to.
luOid
An object ID that has type MP_MULTIPATH_LOGICAL_UNIT.
DESCRIPTION
The MP_AssignLogicalUnitToTPG() function assigns a multipath logical
unit to a target port group.
Calling this function is valid only if the field supportsLuAssignment
in the data structure TARGET_PORT_GROUP_PROPERTIES is true. This capa‐
bility is not defined in SCSI standards. In some cases, devices support
this capability through non-SCSI interfaces (such as SMI-S or SNMP).
This method is only used when devices support this capability through
vendor-specific means.
At any given time, each LU will typically be associated with two target
port groups, one in active state and one in standby state. The result
of this API will be that the LU associations change to a different pair
of target port groups. The caller should specify the object ID of the
desired target port group in active access state.
RETURN VALUES
MP_STATUS_INVALID_OBJECT_TYPE
The tpgOid or luOid parameter 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 tpgOid parameter has a type subfield other than
MP_OBJECT_TYPE_TARGET_PORT_GROUP or luOid has a type subfield other
than MP_OBJECT_TYPE_MULTIPATH_LU.
MP_STATUS_OBJECT_NOT_FOUND
The tpgOid or luOid owner ID or object sequence number is invalid.
MP_STATUS_UNSUPPORTED
The API is not supported.
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 ALSOlibMPAPI(3LIB), MP_GetAssociatedTPGOidList(3MPAPI), MP_GetMPLuOidList‐
FromTPG(3MPAPI), attributes(5)
Feb 15, 2006MP_ASSIGNLOGICALUNITTOTPG(3MPAPI)
