BPV

Bit Pointer Valid

0The Bit Pointer field is invalid.

1The Bit Pointer field is valid. If the SKSV bit is set then the BPV bit must be set as well.

Bit Pointer

Identifies the bit position of the field in error, whether it is a command descriptor or

 

a command parameter list field. When a multi-bit field is in error, this will point to

 

the most significant bit of that field. Only valid when the SKSV flag is set.

 

 

Field Pointer

If SKSV = 1, the interpretation of this field depends on the sense key reported.

/Drive Error Code

For Sense Key = 5 (ILLEGAL REQUEST), this field represents the Field Pointer,

 

identifying in which byte of the command descriptor or parameter list an error was

 

detected.

 

Note that the drive scans from byte 0 bit 7 of a command or parameter list through

 

to byte n bit 0. The field and bit pointers are set to point to the most significant bit of

 

the field that is in error. See the illegal field check and the parameter list check.

 

For Sense Key = 0 (NO SENSE) or 2 (NOT READY), this field represents the Progress

 

Indication, where the returned value is a numerator that has 65536 (10000h) as its

 

denominator. This reflects the progress being made through the total operation

 

If SKSV = 0, this field represents the Drive Error Code. The top byte of this field will

 

be zero. The bottom byte contains the drive error code associated with the failure of

 

the previous command, or zero in the case of no failure and no appropriate error

 

code. If the drive’s power-on self-test failed then, in the absence of an error code

 

associated with the most recent command, this byte will be set to the error code

 

generated by the failing test.

 

 

 

NOTE: Drive error codes are provided for information only; they are intended to

 

assist in product integration and fault diagnosis. The codes should not be relied on

 

by “generic” host drivers, since these are specific to the product. For a list of codes,

 

see Chapter 10 of the Hardware Integration Guide, Volume 1 of the HP

 

Ultrium Technical Reference Manual.

 

 

CLN

0 The drive is OK.

 

1 The drive requires cleaning. The front panel LEDs will be displaying a “clean

 

me” sequence or message. This bit is cleared to zero after a cleaning

 

cartridge has been used.

 

 

Commands

REQUEST SENSE 03h 151