Tandberg Data
Product Specifications
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3-16
Tandberg SLR Reference Manual
3.6.12. Tape Erasure for ALRF-1, ALRF-6, MLR3
(SLR50), QIC-5010 and SLR6 (SLR24)
Logical and security
erase
Tape Erasure is performed by means of overwrite. Two erase modes are implemented,
logical and security erase.
3.6.12.1. Logical Erase
No data in any partition will be overwritten. No data in the Device Directory will be updated
except for the Erase-bit.
The Erase-bit will be cleared and the Device Directory will be updated when data is written
from BOT.
3.6.12.2. Security Erase
All tracks on all partitions on the tape will be overwritten using normal data recording with a
random data pattern. The Device Directory will be updated to indicate that EOD is located at
BOT and there is only one partition. This includes clearing of the Erase-bit.
The Reference Bursts will
not
be overwritten.
3.6.13. Stand-by Mode
When the Drive has been idle for a certain time (approx. 10 minutes), it will enter a low-power
Stand-by Mode.
Drive being idle means that no SCSI command is received and there is no
tape or head movement.
When entering the
Stand-by Mode
the recording head is moved away from the tape and
some parts of the electronics are powered down.
NOTE:
If the last SCSI command was a Write command and data is still contained in the buffer, the Drive will
write the data to the tape before entering the Stand-by Mode.
The Drive is perfectly able to receive SCSI commands while in stand-by. When a SCSI
command is received, the
Eject button
is operated or a new cartridge is inserted, the Drive
will exit the
Stand-by Mode
and return to normal operating mode
3.6.14. Operator Interface
The Operator Interface consists of the
Eject button,
LED indicators
and the
cartridge
insertion/ejection mechanism.
3.6.14.1. Eject Button
The Eject Button can be used for two different purses: to eject the cartridge and to enter and
operate
Service Mode
.