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ns-storport-stor_group_affinity.md

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UID tech.root title ms.date targetos description req.construct-type req.ddi-compliance req.dll req.header req.include-header req.kmdf-ver req.lib req.max-support req.redist req.target-min-winverclnt req.target-min-winversvr req.target-type req.typenames req.umdf-ver req.unicode-ansi topic_type api_type api_location api_name f1_keywords dev_langs
NS:storport._STOR_GROUP_AFFINITY
storage
STOR_GROUP_AFFINITY
05/13/2021
Windows
The STOR_GROUP_AFFINITY structure specifies a group number and the processor affinity within that group.
structure
storport.h
Windows Server 2022
STOR_GROUP_AFFINITY, *PSTOR_GROUP_AFFINITY
apiref
HeaderDef
storport.h
_STOR_GROUP_AFFINITY
PSTOR_GROUP_AFFINITY
STOR_GROUP_AFFINITY
_STOR_GROUP_AFFINITY
storport/_STOR_GROUP_AFFINITY
PSTOR_GROUP_AFFINITY
storport/PSTOR_GROUP_AFFINITY
STOR_GROUP_AFFINITY
storport/STOR_GROUP_AFFINITY
c++

-description

The STOR_GROUP_AFFINITY structure specifies a group number and the processor affinity within that group.

-struct-fields

-field Mask

A STOR_AFFINITY value that specifies the affinity mask. The bits in the affinity mask identify a set of processors within the group identified by Group.

-field Group

Specifies the group number.

-field Reserved

Reserved for future use. Set all three Reserved array elements to zero.

-remarks

A STOR_GROUP_AFFINITY structure describes a thread affinity, which is a set of processors on which a thread is allowed to run. Mask contains an affinity mask that identifies the processors in the set. All of the processors in this set belong to the group that is identified by the Group member of the structure.

The StorPortSetSystemGroupAffinityThread and StorPortRevertToUserGroupAffinityThread routines use STOR_GROUP_AFFINITY structures to specify thread affinities.

-see-also

StorPortRevertToUserGroupAffinityThread

StorPortSetSystemGroupAffinityThread