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11.5 DAT Unit
Table 11.3 LED Displays on The DAT Unit
LED status display Indication
Active Attention
(green) (Amber)
Off Off
On
Blinking
(slow)
Blinking
(fast)
Any status On
Blinking
(slow)
No data cartridge is loaded.
A data cartridge is loaded.
Loading or unloading a tape, or the tape
unit is being self-diagnosed.
Operating (reading or writing)
The tape unit has failed.
Errors have occurred in the data cartridge
on operation. Use a cleaning cartridge to
clean the magnetic head. (*1)
*1 If the Attention LED is still blinking after cleaning the head, repeat the operation with
a different tape. If this clears the signal, the first tape is nearing the end of its life.
Blinking of the Attention LED is cleared when a new tape is loaded or when the drive
is power-cycled.
Tape cartridge information
This tape drive supports 60 m, 90 m, 120 m or 125 m DDS cartridges as shown in Table 11.4 .
Table 11.4 DAT Cartridge Capacity
Format Length Native capacity Compressed capacity
DDS-1 60 m 1.3 Gbytes 2.6 Gbytes
DDS-1 90 m 2.0 Gbytes 4.0 Gbytes
DDS-2 120 m 4.0 Gbytes 8.0 Gbytes
DDS-3 125 m 12.0 Gbytes 24.0 Gbytes
Note: The compressed capacity is assuming a data compression ratio of 2:1.
When specifying the data format to be used (native or compressed) for your DAT unit, use the
following device codes:
native /dev/rmt/xl[n]
compress /dev/emt/xc[n]
Where x refers to the number specific to your system. To get this number, look in the /dev/rmt
directory to find the entry that corresponds to the SCSI ID 5.
[n] is an optional parameter specifying no rewind.
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