// ntifs.h

typedef enum _SRV_INSTANCE_TYPE {
  SrvInstanceTypeUndefined,
  SrvInstanceTypePrimary,
  SrvInstanceTypeCsv,
  SrvInstanceTypeSBL,
  SrvInstanceTypeSR,
  SrvInstanceTypeVSMB
} SRV_INSTANCE_TYPE, *PSRV_INSTANCE_TYPE;
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Windows Driver Kit DDI reference (ne-ntifs-srv_instance_type)

SRV_INSTANCE_TYPE enumeration

Description

The SRV_INSTANCE_TYPE enumeration type describes the SRV instance type for an SRV_OPEN_ECP_CONTEXT.

Constants

`SrvInstanceTypeUndefined`

The SRV instance type is undefined.

`SrvInstanceTypePrimary`

The open request came from a primary instance of SRV with user-facing shares.

`SrvInstanceTypeCsv`

The open request came from an internal instance of SRV used by CSVFS.

`SrvInstanceTypeSBL`

The open request came from an internal instance of SRV used by S2D at Software Layer Bus (SBL).

`SrvInstanceTypeSR`

The open request came from an internal instance of SRV used by Storage Replica.

`SrvInstanceTypeVSMB`

The open request came from an internal instance of SRV used by Hyper-V over SMB.

SRV_INSTANCE_TYPE - NtDoc