
3. The tape is rewound to the physical beginning of tape (PBOT).
4. The tape is unloaded from the tape path.
5. The data cartridge is ejected.
CAUTION
When you use the “fast” version of the unload button to
unload the tape, the data in any partially transmitted logical
blocks is lost (not put on tape for a write operation or not sent
to the initiator for a read operation).
“Super Fast” Unload Button
If the CTS’s EEPROM image includes the “super fast” unload button
setting (optional), the following actions occur when you press the
unload button. (These steps assume that a data cartridge is loaded
and that the CTS is ready.)
Note: If you have prevented media removal with a
PREVENT/ALLOW MEDIUM REMOVAL command, the
CTS performs no action when you press the unload button.
1. The top amber LED begins to flash at a fast rate.
2. Any command or activity currently in progress is aborted.
Note: If the CTS is performing a write operation when you
press the “super fast” version of the unload button, the
CTS will abort the command after it writes to tape the
last logical block that was completely transmitted from
the initiator. However, any partially transmitted logical
blocks will be lost.
3. If necessary, an EOD mark is written to the tape to indicate the
end of data.
Note: In 8200 format, no EOD mark is written.
4. The tape is unloaded from the tape path without being rewound
to the physical beginning of tape (PBOT) or moved from its
current position.
May 1994 EXB-8205 and EXB-8505
(Standard and XL)
3-5
3 Implementing CTS Operations
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