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Functional Specifications
Performance Data
The following table provides performance data for the tape system.
Table 3. Performance Data
Feature
Drive Read/Write Transfer Rate
SCSI Bus Transfer Rates*
Tracks
Track Density
Linear Bit Density
READ / WRITE Tape Speed
Rewind Tape Speed
Linear Search Tape Speed
Average Rewind Time
Maximum Rewind Time
Average Access Time (from BOT)
Maximum Access Time (from BOT)
Load to BOT
Unload from BOT
Nominal Tape Tension
* Depends on data type, SCSI bus limitations, and system configuration.
Note that data is typical; times may be longer if error recovery time is needed.
Shock and Vibration Specifications
The following tables provide non-operating and operating shock and vibration specifications for the tape drive.
Table 4. Non-Operating Shock Specifications
Pulse Shape:
Peak Acceleration:
Duration:
Application:
Drop:
Table 5. Non-Operating Vibration Specifications
Type:
Sine
Frequency Range:
5 - 500 - 5 Hz
Acceleration Level:
0.02 " DA
1 G
Application:
X,Y,Z axes
Type:
Random
Frequency Range:
10 - 500 Hz
Acceleration Level:
2 G
PSD Envelope:
0.008 G ^ 2/Hz
Application:
X,Y,Z axes
Type:
Random
Frequency Range
Truck Profile* (0.5 Grms)
(Vibration Level):
Air Profile* (1.0 Grms)
Application:
X,Y,Z axes (30 minutes, each profile and each axis, for a total of 3 hours)
Type:
Sine, Sweep, and Dwell
Frequency Range:
5 - 150 - 5 Hz; 0.5 octave /minute, 0.5 G
Application:
X,Y,Z axes; dwell at lowest resonant frequency in axis for 30 minutes.
16 MB/second, native
LVD (Ultra 2)
56 logical tracks; 448 physical tracks
1058 tracks per inch (tpi)
193 k bits per inch (bpi)
122 inches per second (ips)
160 ips
160 ips
69 seconds
140 seconds
70 seconds
142 seconds
12 seconds (typical)
40 seconds (unformatted tape)
12 seconds
Stationary = 3.0 ± 0.5 oz
Operating Speed = 3.5 ± 0.5 oz
Shock (Unpackaged)
Square wave
40 G
10 ms (180 inches/second)
X,Y,Z axes, twice in each axis (once in each direction)
Shock (Packaged, Drop)
42 inches (internal drive)
36 inches (tabletop)
Vibration (Unpackaged)
Sweep
Upward and downward sweep
Between 5 and 31 Hz (crossover)
Between 31 and 500 Hz (crossover)
Sweep rate = ½ octave /minute
Sweep rate = 60 minutes /axis
Vibration (Packaged)
Description
40 MB/second
Narrow, native
80 MB/second
Wide, native
½ sine pulse
140 G
2 ms
16 drops total
16 drops total
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