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HP C737990900 User Manual

Page 48

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48 Commands

WBus16

The Wide Bus 16 flag is set according to whether the hardware supports this bus feature.

The flag is only valid for parallel SCSI and is clear for all other low level interfaces.

Sync

0

Synchronous data transfer is not supported. The flag should be zero for all low-

level interfaces apart from parallel SCSI.

1

Synchronous data transfer is supported. The flag is only valid for parallel SCSI.

Linked

0

The device does not support linked commands.

CmdQue

0

The CmdQue flag is always zero. If the Basic Queuing (BQue) flag is also zero, this

indicates that the device does not support tagged tasks for this logical unit.

Vendor

Identification

A vendor-specific, 8-byte string of ASCII characters, left justified and padded with space

characters “

HP

”.

Product Identification

A left-justified, vendor-specific, 16-byte string field of ASCII characters with space

character padding on the right. The string consists of two parts:

First half (bytes 16–23): “

Ultrium

Second half (bytes 24–31): “

-

The following strings have been defined:

Generation 2 FC drive: “

Ultrium 2-SCSI

” (“SCSI” is not a typo!)

Generation 2 SCSI drive: “

Ultrium 2-SCSI

Product Revision Level

A vendor-specific string of four ASCII characters: “

CYMV

”:

C

is the codename (

F

for a full-height drive)

Y

is the year code. “

0

” is 2000, “

1

” is 2001, up to “

9

” for 2009. Alpha characters are

then used if needed.

M

is the month code. “

1

” is January up to “

B

” for December.

V

is an ASCII character representing the OEM variant of the code. “

D

” is the standard

distribution variant.

Clocking

0

For FC drives.

3

For SCSI drives, indicating that the drive supports both ST and DT transfers.