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