Messages; Message Out Support (Parallel Scsi Only) - HP C737990900 Technical Reference Manual

Messages

Message Out Support
Name
Abort
Bus Device Reset
Extended Message
Identify
Initiator Detected
Error
This chapter includes all SCSI messages, both supported and unsupported.
Parts of this chapter come from Section 5, Logical Characteristics, of the SCSI
standards (see page 13).
The message system provides an initiator and a target on the SCSI bus with a
means of managing communication. The available messages are listed in this
chapter.
(Parallel SCSI only)
Code
06h An abort condition is generated (see
0Ch A reset condition is generated (see
01h See "Extended Message Support" below.
80h+ The Identify Out message is sent by the initiator to identify the Logical Unit
to be accessed and to set Disconnect Privilege.
05h The initiator has detected an error in the data being sent in a Command,
Data or Status phase. The drive will send a restore data pointers message
to retry the data transfer. (See
below for details).
If the message is received immediately after an Identify message or after
the Command Complete message has been sent, the drive will go Bus
Free.
Support
"Abort Handling" on page
"Reset Strategy" on page
"Message In Support (Parallel SCSI
2
16).
15).
only)"
Messages 25