org.jscsi.target.scsi.inquiry

Class DeviceIdentificationVpdPage

java.lang.Object

org.jscsi.target.scsi.inquiry.DeviceIdentificationVpdPage

All Implemented Interfaces:

IResponseData, ISerializable

public class DeviceIdentificationVpdPage
extends Object
implements IResponseData

The Device Identification VPD page provides the means to retrieve identification descriptors applying to the logical unit. Logical units may have more than one identification descriptor (e.g., if several types or associations of identifier are supported).

Device identifiers consist of one or more of the following:

• Logical unit names
• SCSI target port identifiers
• SCSI target port names
• SCSI target device names
• Relative target port identifiers
• SCSI target port group number or
• Logical unit group number.

Identification descriptors shall be assigned to the peripheral device (e.g., a disk drive) and not to the currently mounted media, in the case of removable media devices. Operating systems are expected to use the identification descriptors during system configuration activities to determine whether alternate paths exist for the same peripheral device.

This class uses the singleton pattern since the content of the DEVICE IDENTIFICATION VPD PAGE will never change.

Author:

Andreas Ergenzinger

Constructor Summary

Constructors

Constructor and Description
DeviceIdentificationVpdPage(TargetServer target)

Method Summary

Methods

Modifier and Type	Method and Description
void	serialize(ByteBuffer byteBuffer, int index) Inserts a serialized representation of the object into the specified ByteBuffer.
int	size() Returns the size in bytes of the object's serialized representation.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

DeviceIdentificationVpdPage

public DeviceIdentificationVpdPage(TargetServer target)

Method Detail

serialize

public void serialize(ByteBuffer byteBuffer,
             int index)

Description copied from interface: ISerializable

Inserts a serialized representation of the object into the specified ByteBuffer. The serialized object will occupy the byte positions from index to index + ISerializable.size() - 1.

Specified by:

serialize in interface ISerializable

Parameters:

byteBuffer - where to insert the serialized object representation

index - the position of the first byte of the serialized object in the ByteBuffer

size

public int size()

Description copied from interface: ISerializable

Returns the size in bytes of the object's serialized representation.

Specified by:

size in interface ISerializable

Returns:

the size in bytes of the object's serialized representation