IBM Ultrastar 36LZX Specifications page 67

Ÿ Qualifier is set to zero to indicate that the LUN specified in the Identify Message is currently sup-
ported. Qualifier is set to 011b when the LUN specified in the Identify Message is not present.
Ÿ Peripheral Device Type is set to zero to indicate that the device is Direct Access. Peripheral Dev.
Type is set to 1Fh when the LUN specified in the Identify Message is not present.
Ÿ Removal Media Bit (RMB) is always set to zero to indicate no removal media exist.
Ÿ Device-Type Modifier is set to zero.
Ÿ ISO is set to zero to indicate that this product does not claim compliance to the International
Organization for Standardization (ISO) version of SCSI (ISO DP 9316).
Ÿ ECMA is set to zero to indicate that this product does not claim compliance to the European Com-
puter Manufacturers Association (ECMA) version of SCSI (ECMA-111).
Ÿ ANSI indicates the level of the ANSI standard that is supported by the product. The drive supports
ANSI SCSI version 3.
Ÿ TrmTsk (Terminate Task) filed of 0 indicates the Target does not support the TERMINATE TASK
task management function as defined in the SAM.
Ÿ NormACA (Normal ACA) field of 0 indicates the device server does not support setting the NACA bit
to one in the Control Byte of the CDB as defined in the SAM.
Ÿ Response Data Format is set to two to indicate that the Inquiry Data Format as specified in ANSI
SCSI version 2 is supported by the drive.
Ÿ Additional Length indicates the number of bytes of inquiry information that follows.
Ÿ EncSer (Enclosure Services) bit of 0 indicates that the Target does not contain an embedded
enclosure service component.
Ÿ MultiP (MultiPort) bit of 0 indicates that the Target has a single port and does not implement multi-
port requirements.
Ÿ MChngr (Medium Changer) bit is only supported when the RMB bit is one.
Ÿ ACKREQQ (ACKQ/REQQ) bit of 0 indicates that the Target does not support a request and acknow-
ledge data transfer handshake on a Q cable.
Ÿ Addr32 (Wide SCSI Address 32) bit of 0 indicates that the Target does not support 32 bit wide SCSI
Addresses.
Ÿ Addr16 (Wide SCSI Address 16) bit of 1 indicates that the Target supports 16 bit wide SCSI
Addresses.
Ÿ REL_A is set to zero to indicate that the drive does not support 'Relative Address Mode'.
Ÿ Wb_32 is set to zero to indicate that the drive does not support 32-bit wide data transfers.
Ÿ Wb_16 is set to one to indicate that the drive supports 16-bit wide data transfers. Wb_16 is set to
zero to indicate that the drive does not support 16-bit wide data transfers.
Ÿ Sync is set to one to indicate that the drive supports synchronous data transfer.
Ÿ Link is set to one to indicate that the drive supports linked commands.
Ÿ TTD is set to zero to indicate that the drive does not support the CONTINUE I/O PROCESS and
TARGET TRANSFER DISABLE message for this logical unit.
Ÿ CmdQu is set to one to indicate that the drive supports command queuing. CmdQu is set to zero to
indicate that the drive does not support command queuing.
Ÿ SftRe is set to zero to indicate that the target supports Hard Reset only.
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For all commands, except inquiry and request sense, if an invalid lun is specified a check condition will be
returned.
Ultrastar 36LZX hard disk drive specifications
67
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