Edit

Share via

PRI_FULL_STATUS_DESCRIPTOR_HEADER structure (scsi.h)

  • Article

The PRI_FULL_STATUS_DESCRIPTOR_HEADER structure is the first member of a PRI_FULL_STATUS_DESCRIPTOR structure, which is used to populate a PRI_FULL_STATUS_LIST.

Syntax

typedef struct {
  UCHAR ReservationKey[8];
  UCHAR Reserved[4];
  UCHAR ReservationHolder : 1;
  UCHAR AllTargetPorts : 1;
  UCHAR Reserved1 : 6;
  UCHAR Type : 4;
  UCHAR Scope : 4;
  UCHAR Reserved2[4];
  UCHAR RelativeTargetPortIdentifier[2];
  UCHAR AdditionalDescriptorLength[4];
} PRI_FULL_STATUS_DESCRIPTOR_HEADER, *PPRI_FULL_STATUS_DESCRIPTOR_HEADER;

Members

ReservationKey[8]

The reservation key under which the persistent reservation is held.

Reserved[4]

Reserved for internal use.

ReservationHolder

A reservation holder set to one indicates that all initiator and target ports described by this full status descriptor are registered and are persistent reservation holders. A reservation holder set to zero indicates that all initiator and target ports described by this full status descriptor are registered but are not persistent reservation holders.

AllTargetPorts

An AllTargetPorts value of zero indicates that this full status descriptor represents a single initiator port and target port pair. An AllTargetPorts value of one indicates:

  • This full status descriptor represents all the initiator and target ports that are associated with both:
    • The SCSI initiator port (I) is specified by the TransportID
    • Every target port (T) is in the SCSI target device
  • All the initiator and target ports are registered with the same reservation key
  • All the initiator and target ports are either reservation holders or not reservation holders as indicated by the ReservationHolder field

Reserved1

Reserved for internal use.

Type

If ReservationHolder is set to one, the Type field is defined in the Persistent Reserve In command with ServiceAction=RESERVATION_ACTION_READ_KEYS. If ReservationHolder is set to zero, the contents of the Type field is not defined by this standard.

Scope

If ReservationHolder is set to one, the Scope field is defined in the Persistent Reserve In command with ServiceAction=RESERVATION_ACTION_READ_KEYS. If ReservationHolder is set to zero, the contents of the Scope field is not defined by this standard.

Reserved2[4]

Reserved for internal use.

RelativeTargetPortIdentifier[2]

Identifies the target port relative to the initiator port.

AdditionalDescriptorLength[4]

The AdditionalDescriptorLength field indicates the number of bytes that follow.

Requirements

Requirement Value
Header scsi.h

See also