public class Read6Cdb extends ReadCdb
READ (6)
SCSI command.
The READ (6) command requests that the device server read the specified logical block(s) and transfer them to the data-in buffer. Each logical block read includes user data and, if the medium is formatted with protection information enabled, protection information. Each logical block transferred includes user data but does not include protection information.
Although the READ (6) command is limited to addressing up to 2,097,151 logical blocks, this command has been maintained as mandatory since some system initialization routines require that the READ (6) command be used. System initialization routines should migrate from the READ (6) command to the READ (10) command, which is capable of addressing 4,294,947,295 logical blocks, or the READ (16) command, which is capable of addressing 18,446,744,073,709,551,615 logical blocks.
| Constructor and Description |
|---|
Read6Cdb(ByteBuffer buffer) |
| Modifier and Type | Method and Description |
|---|---|
protected long |
deserializeLogicalBlockAddress(ByteBuffer buffer)
Deserializes the value of the
ReadOrWriteCdb.logicalBlockAddress field. |
protected int |
deserializeTransferLength(ByteBuffer buffer)
Deserializes the value of the
ReadOrWriteCdb.transferLength field. |
protected int |
getLogicalBlockAddressFieldIndex()
Returns the index position of the first byte used for encoding the
ReadOrWriteCdb.logicalBlockAddress field. |
protected int |
getTransferLengthFieldIndex()
Returns the index position of the first byte used for encoding the
ReadOrWriteCdb.transferLength field. |
addIllegalFieldPointerForLogicalBlockAddress, addIllegalFieldPointerForTransferLength, getLogicalBlockAddress, getTransferLengthaddIllegalFieldPointer, addIllegalFieldPointer, getIllegalFieldPointers, getScsiOperationCode, isNormalACApublic Read6Cdb(ByteBuffer buffer)
protected long deserializeLogicalBlockAddress(ByteBuffer buffer)
ReadOrWriteCdbReadOrWriteCdb.logicalBlockAddress field.deserializeLogicalBlockAddress in class ReadOrWriteCdbbuffer - the ByteBuffer containing the CDBReadOrWriteCdb.logicalBlockAddress fieldprotected int deserializeTransferLength(ByteBuffer buffer)
ReadOrWriteCdbReadOrWriteCdb.transferLength field.deserializeTransferLength in class ReadOrWriteCdbbuffer - the ByteBuffer containing the CDBReadOrWriteCdb.transferLength fieldprotected int getLogicalBlockAddressFieldIndex()
ReadOrWriteCdbReadOrWriteCdb.logicalBlockAddress field.getLogicalBlockAddressFieldIndex in class ReadOrWriteCdbReadOrWriteCdb.logicalBlockAddress fieldprotected int getTransferLengthFieldIndex()
ReadOrWriteCdbReadOrWriteCdb.transferLength field.getTransferLengthFieldIndex in class ReadOrWriteCdbReadOrWriteCdb.transferLength fieldCopyright © 2012 University of Konstanz, Distributed Systems Group. All Rights Reserved.