Specifications
Quantum Atlas 10K II Ultra 160/m SCSI Hard Disk Drives
4-5
4.4
TIMING SPECIFICATIONS
Table 4-4 illustrates the timing specifications of the Quantum Atlas 10K II Ultra
160/m SCSI disk drives.
Table 4-4 Timing Specifications
DESCRIPTION
QUANTUM
ATLAS 10K II
9.2 GB
QUANTUM
ATLAS 10K II
18.4 GB
QUANTUM
ATLAS 10K II
36.7 GB
QUANTUM
ATLAS 10K II
73.4 GB
Seek Times (All Nominal):
Single Track Seek
Average Seek (READ)
Average Seek (WRITE)
Average Access to Data
Average Head Switch Time
Full Stroke Seek (Max. Seek)
Average Rotational Latency
Command Overhead, Seek
.6 ms
4.7 ms
4.7 ms
7.9 ms
0.6 ms
12 ms
3 ms
200 us
.6 ms
4.7 ms
4.7 ms
7.9 ms
0.6 ms
12 ms
3 ms
200 us
.6 ms
4.7 ms
4.7 ms
7.9 ms
0.6 ms
12 ms
3 ms
200 us
.6 ms
5.2 ms
5.2 ms
8.4 ms
0.6 ms
13 ms
3 ms
200 us
Start/Stop Times:
Time to Data Available
1
(from SCSI
START command)
Time to Data Available
2
(from
power up)
Nominal: 15
seconds
Nominal: 25
seconds
Nominal: 15
seconds.
Nominal: 25
seconds
Nominal: 15
seconds
Nominal: 25
seconds
Nominal: 17
seconds
Nominal: 27
seconds
Spin Down Time
12 seconds
12 seconds
12 seconds
14 seconds
NOTES FOR TABLE 4-4
1
Time to Data Available from SCSI start command assumes that the SPIN DELAY
jumper is installed and power has been supplied to the disk drive with the PCBA
ready. Measurement is from the issue of a SCSI START command until a good test
unit status is received from the disk drive.
2
Time to Data Available from power up assumes that no SPIN DELAY jumper is
installed. Measurement is from the time power is applied until a good test unit status
is received from the disk drive.
Summary of Contents for Quantum Atlas 10K II 9.2/18.4/36.7/73.4 GB
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Page 315: ...Feature Descriptions 6 14 Quantum Atlas 10K II Ultra 160 m SCSI Hard Disk Drives...
Page 321: ...Appendix A Quick Reference A 6 Quantum Atlas 10K II Ultra 160 m SCSI Hard Disk Drives...
Page 363: ...Appendix B SCSI Bus Signal Timing B 42 Quantum Atlas 10K II Ultra 160 m SCSI Hard Disk Drives...
Page 369: ...Index I 4 Quantum Atlas 10K II Ultra 160 m SCSI Hard Disk Drives...
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