Code

Meaning

Comments

 

29 01

Power-on reset

The drive has powered on since the host last accessed it.

 

 

Action:

1. The action of the calling application depends on the

 

 

 

current I/O and what the operating system is

 

 

 

expecting.

 

 

 

2. For parallel SCSI, the host should renegotiate transfer

 

 

 

parameters, and reconfigure the drive with any

 

 

 

host-specific operating parameters (burst size, bus

 

 

 

activity limit, fixed or variable mode, and so on).

 

 

 

3. The host should then report to the console that the

 

 

 

drive has been reset.

 

 

 

4. The I/O can be retried if desired.

 

 

 

 

 

29 02

SCSI bus reset

SCSI drives: The drive has received a SCSI reset signal

 

 

 

since the host last accessed it.

 

 

 

FC drives: The drive has received its first process login.

 

 

 

The drive will be implicitly logged out after a Target

 

 

 

Reset so this ASCQ will be posted after the host has

 

 

 

performed port/process login.

 

 

Action:

As for 29 01h

 

 

 

 

 

29 03

Bus device reset

SCSI drives: The drive has received a SCSI bus device

 

 

 

reset message since the host last accessed it.

 

 

 

FC drives: The drive has received a process login when it

 

 

 

was previously logged in for a particular host.

 

 

Action:

As for 29 01h

 

 

 

 

 

29 04

Internal firmware reboot

The drive has reset itself.

 

 

Action:

The host may renegotiate transfer parameters.

 

 

 

 

 

29 05

Transceivers to SE

SCSI drives only: The transceivers on the bus have been

 

 

 

reset to Single-Ended.

 

 

Action:

As for 29 01h

 

 

 

 

 

29 06

Transceivers to LVD

SCSI drives only: The transceivers on the bus have been

 

 

 

reset to LVD.

 

 

Action:

As for 29 01h

 

 

 

 

 

29 07

I_T nexus loss occurred

The drive has lost the connection with the initiator (host

 

 

 

server).

 

 

Action:

The host may renegotiate transfer parameters.

 

 

 

 

 

2A 01

Mode parameters changed

The Mode parameters for the drive have been changed

 

 

 

by a host other than the one issuing the command. UNIT

 

 

 

ATTENTION is set for all hosts following a MODE SELECT

 

 

 

command, apart from the host that issued the command.

 

 

 

This code will only be returned in a multi-host

 

 

 

environment.

 

 

 

 

70 Sense keys and codes

HP restricted

 

 

 

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HP LTO 4 SCSI, LTO 4 FC, LTO 4 SAS manual Action