IBM 20/40 GB DDS-4 4mm Internal (SCSI) Tape Drive


IBM 20/40 GB DDS-4 4mm Internal (SCSI - 68-pin) Tape Drive

 

                     FRU P/N    OPT P/N
 --------------------------------------------
 Tape Drive          09N0731    00N7991
 Data     Cartridge  ???????    59H4458
 Cleaning Cartridge  59H3090    59H3090


See TIP > Tape Drive Cleaning Strategies


Description

The 20/h40 GB DDS-4 4mm Internal Tape Drive is an Ultra-2 SCSI 68-pin - (low voltage differential) LVD-tape drive.
Each tape cartridge can store up to 20 GB of data (uncompressed), or up to 40 GB of data (compressed), assuming a 2:1 compression ratio.

NOTE: This drive works with some non-LVD or single-ended controllers, but at a lower performance rate.
During power-On, the tape drive performs a power-on self-test (POST) within 15 seconds and then performs a drive reset.


The DDS-4 drive can be mounted in a 3.5-inch or 5.25-inch bay (horizontally or vertically).


The Option Package contains:



Front Panel

 

1    Tape drive door
   2    Unload button
   3    Tape-drive activity indicator
   4    Cartridge presence indicator
   5    Cleaning status indicator

Front Panel Status Lights

Indicator Actions Action message
LEFT LED
(green)
Cleaning status
Lights stadily The drive requires cleaning because it
has operated for 25 hours. Use the
included cleaning cartridge to clean the
tape drive.
LEFT LED
(green)
Cleaning status
Flashes slowly The drive requires cleaning because an
internal error rate has occurred. Use
the included cleaning cartridge to clean
the tape drive.
MIDDLE LED
(green)
Cartridge-
-presence
Lights steadily NORMAL - A tape cartridge inserted in
the tape drive is ready to use.
MIDDLE LED
(green)
Tape-drive-
-presence
Flashes slowly WARNING - A tape cartridge inserted in
the tape drive is generating errors.
1. Use the included cleaning cartridge
to clean the tape drive.
2. Replace the tape cartridge if it
continues to generate errors after
you clean the tape drive.
MIDDLE LED
(green)
Tape-drive-
-presence
Flashes rapidly ERROR - The tape drive could not
correctly write to the tape.
1. Use the included cleaning
cartridge to clean the tape drive.
2. If the tape drive still cannot
correctly write to the tape after
you clean the tape drive, replace
the data cartridge.
RIGHT LED
(amber)
Tape-drive-
-activity
Lights steadily NORMAL - The tape drive is reading or
writing to the tape.
RIGHT LED
(amber)
Tape-drive-
-activity
Flashes rapidly ERROR - A hardware fault occurred.

Cartridge Format Compatibility

Cartridge format Type of
compatibility
Uncompressed
data
Compressed
data
DDS-4 (150 m) Read and write 20 GB 40 GB
DDS-3 (125 m) Read and write 12 GB 24 GB
DDS-2 (120 m) Read and write 4 GB 8 GB
DDS (90 m) Read and write 2 GB 4 GB
DDS (60 m) Read and write 1.3 GB 2.6 GB


Product Specifications

Power
specifications
Voltage tolerance ± 10% (+12 Vdc)
± 7% ( +5 Vdc)
Operational current
(maximum)
250 mA (+12 Vdc)
600 mA ( +5 Vdc)
Peak 600 mA (+12 Vdc)
800 mA ( +5 Vdc)
Operating power
dissipation (max)
< 5.5 watts (+12 Vdc)
< 5.5 watts ( +5 Vdc)

Typical sustained
data-transfer rates
Compressed data 2.75 MB per second
Uncompressed data 5.5 MB per second

Environmental
specifications
Temperature range
Operating
Nonoperating
+ 5°C to +45°C (+41°F to +113°F)
-40°C to +65°C (-40°F to +149°F)
Relative Humidity
(noncondensing)
Operaive
Nonoperative
20% to 80%
0% to 90%
Max. wet bulb
temperature
Operative
Nonoperative
26°C (78.8°F) max.
No condensation
Altitude
Operating
Nonoperating
100 m (330 ft) below sea level to
4575m (15000 ft) above sea level
300 m (985 ft) gelow sea level to
15200m (49900ft) above sea level