4 - 3
SONY SDT-10000/SDT-11000 DDS Tape Drive
4. OPERATION
4. 2 OPERATOR ACTION
4. 2. 1 Powering up the SDT-10000/SDT-11000
After the initial installation of the SDT-10000/SDT-11000 has been verified, power can be applied to the unit. The
+12V and +5V power must be applied simultaneously. The SDT-10000/SDT-11000 will execute a power-up diagnostic
and then comes ready.
Once the tape has been loaded the SDT-10000/SDT-11000 sends a CHECK CONDITION response on receipt of the
next SCSI command from the host. The UNIT ATTENTION key is set in the returned REQUEST SENSE data to
indicate that the tape may have been changed. (Sense Key/ASC/ASCQ = 06/28/00)
4. 2. 2 Inserting Cassettes
The operator inserts a cassette into the slot on the front panel with the arrow on the cassette pointing towards the drive.
As the cassette is inserted, the drive takes it and automatically loads it into the drive mechanism. The SDT-10000/SDT-
11000 performs a tape load sequence as described in section 4.3.1.
4. 2. 3 Removing Cassettes
The cassette can be removed from the SDT-10000/SDT-11000 either in response to a SCSI UNLOAD command, or by
pressing the Eject button.
The operator uses the Eject button to initiate the unload sequence (see section 4.3.2). The mechanism winds the tape to
Beginning of Media (BOM), unthreads it, and ejects the cassette from the slot.
Note: Operation of the Eject button is disabled if the host has previously sent a SCSI PREVENT ALLOW MEDIA
REMOVAL command with prevent bit set to one. In this case, pressing the Eject button has no effect, and does
not initiate an Unload sequence. The Eject button returns to normal operation following receipt of a PREVENT
ALLOW MEDIA REMOVAL command with prevent bit clear.
4. 2. 4 Write-Protecting Cassettes
Cassettes can be write-protected by sliding the tab on the back of the cassette open. In this state, data can be read from
the tape but not written to it.
When a Write Protected tape is loaded in the drive the Tape and Status LEDs will be lit. The Busy LED will indicate any
activity on the SCSI bus or mechanical motions in the drive itself.
Caution: The Tape Log, which contains a history of usage of the tape, will not be updated when the cassette is write-
protected. It follows that the Tape Log becomes inaccurate if a cassette is used write-protected, and the media
warning cannot be relied on to indicate that the cassette needs to be copied and replaced.
Summary of Contents for DDS-4
Page 177: ...3 866 308 03 ...
