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Find Replacement BBQ Parts for 20,308 Models. Repair your BBQ today.
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Following are descriptions of each of the messages supported by the drive.
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This message is sent from the initiator to the target to clear the current I/O process
on the selected unit. Buffered (cached) write operations are completed if possible.
The target goes directly to the BUS FREE phase after successful receipt of this
message. Current settings of MODE SELECT parameters and reservations are not
affected. Commands, data, and status for other initiators is not affected.
This message can be sent to a logical unit that is not currently performing an
operation for the initiator. If no unit has been selected, the target goes to BUS
FREE phase and no commands, data, or status on the target are affected.
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The BUS DEVICE RESET message is sent from an initiator to direct the drive to
clear all I/O processes on the drive. The message causes the drive to:
1. Flush the contents of cache to tape and go to the BUS FREE phase.
2. Execute a hard reset, leaving it as if a Bus Reset had occurred.
The drive creates a Unit Attention condition for all initiators after accepting and
processing a Bus Device Reset message. The additional sense code is set to
POWER ON, RESET, or BUS DEVICE RESET OCCURRED.
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The COMMAND COMPLETE message is sent by the drive to an initiator to
indicate that an I/O process has completed and that valid status has been sent to the
initiator. After successfully sending this message, the drive goes to the BUS FREE
phase by releasing the BSY signal. The drive considers the message transmission
successful when it detects the negation of ACK for the COMMAND COMPLETE
message with the ATN signal false. If a COMMAND COMPLETE message is
received by the tape drive, it is handled as an illegal message: the drive returns
MESSAGE REJECT and enters its STATUS phase, reporting CHECK
CONDITION with the sense key set to COMMAND ABORTED.