CONFIGURATION: RELIAB LITY AND MAINTENANCE: Formated capadiy. TB 3 MTTF 1,000,000 hours Integrated controller SATA Start'stop cycles 50,000 Encoding metrod EPFML Dosign lilo 5 years (minimum) Buffer size 32ME Data errors Platers (nonrecoverabie) < per 105 oits read PERFORMANCE: Data surfaces 16 Seek tirmes Trecks per sutace 16,383 Track to track Track density 190,000pi Fead 0.3ms Recording density 1,462Khpi Byles per seclor 512 White 0.5ms Average Sectors per Track 63 PHYSICAL Fead 4.5ms While 5.0ms Helght 26. 1mm Average latency 4.17ms Length 147.0mm Rotational speed Width 101.6mm (4-0.20%) 1200rpm Weight Temperature (C) 720g Deta transfer rale: Operating 5'C to 5°C From disk 12MB/sec Nonoperating'storage -40'C to 71'C To disk 3GB/sec Relative humidty 5% to 95% Start ime Acoushc roise 20dEA, ide (0 to drive ready) 9 sec POWER RECUIREMENTS +5VDC Pover Mode +5% - 10% +5.0VDC Spin up 255mA 16.5W Readwite 1,080mA 14.4W Idle 730mA 9.77W Stancty 270mA 1.7W Seep 250mA 16W FIGURE 7.15 A Typical Rigid Disk Specification as Provided by a Disk Drive Manufacturer
CONFIGURATION: RELIAB LITY AND MAINTENANCE: Formated capadiy. TB 3 MTTF 1,000,000 hours Integrated controller SATA Start'stop cycles 50,000 Encoding metrod EPFML Dosign lilo 5 years (minimum) Buffer size 32ME Data errors Platers (nonrecoverabie) < per 105 oits read PERFORMANCE: Data surfaces 16 Seek tirmes Trecks per sutace 16,383 Track to track Track density 190,000pi Fead 0.3ms Recording density 1,462Khpi Byles per seclor 512 White 0.5ms Average Sectors per Track 63 PHYSICAL Fead 4.5ms While 5.0ms Helght 26. 1mm Average latency 4.17ms Length 147.0mm Rotational speed Width 101.6mm (4-0.20%) 1200rpm Weight Temperature (C) 720g Deta transfer rale: Operating 5'C to 5°C From disk 12MB/sec Nonoperating'storage -40'C to 71'C To disk 3GB/sec Relative humidty 5% to 95% Start ime Acoushc roise 20dEA, ide (0 to drive ready) 9 sec POWER RECUIREMENTS +5VDC Pover Mode +5% - 10% +5.0VDC Spin up 255mA 16.5W Readwite 1,080mA 14.4W Idle 730mA 9.77W Stancty 270mA 1.7W Seep 250mA 16W FIGURE 7.15 A Typical Rigid Disk Specification as Provided by a Disk Drive Manufacturer
Computer Networking: A Top-Down Approach (7th Edition)
7th Edition
ISBN:9780133594140
Author:James Kurose, Keith Ross
Publisher:James Kurose, Keith Ross
Chapter1: Computer Networks And The Internet
Section: Chapter Questions
Problem R1RQ: What is the difference between a host and an end system? List several different types of end...
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Question
Transfer rate of a disk drive can be no faster than the bit density (bits/track) times the rotational speed of the disk. Figure 7.15 gives a data transfer rate of 112GB/sec. Assume that the average track length of the disk is 5.5 inches. What is the average bit density of the disk?
Transcribed Image Text:CONFIGURATION:
RELIAB LITY AND MAINTENANCE:
Formated capadiy. TB
3
MTTF
1,000,000 hours
Integrated controller
SATA
Start'stop cycles
50,000
Encoding metrod
EPFML
Dosign lilo
5 years (minimum)
Buffer size
32ME
Data errors
Platers
(nonrecoverabie)
< per 105 oits read
PERFORMANCE:
Data surfaces
16
Seek tirmes
Trecks per sutace
16,383
Track to track
Track density
190,000pi
Fead
0.3ms
Recording density
1,462Khpi
Byles per seclor
512
White
0.5ms
Average
Sectors per Track
63
PHYSICAL
Fead
4.5ms
While
5.0ms
Helght
26. 1mm
Average latency
4.17ms
Length
147.0mm
Rotational speed
Width
101.6mm
(4-0.20%)
1200rpm
Weight
Temperature (C)
720g
Deta transfer rale:
Operating
5'C to 5°C
From disk
12MB/sec
Nonoperating'storage
-40'C to 71'C
To disk
3GB/sec
Relative humidty
5% to 95%
Start ime
Acoushc roise
20dEA, ide
(0 to drive ready)
9 sec
Transcribed Image Text:POWER RECUIREMENTS
+5VDC
Pover
Mode
+5% - 10% +5.0VDC
Spin up
255mA
16.5W
Readwite 1,080mA
14.4W
Idle
730mA
9.77W
Stancty
270mA
1.7W
Seep
250mA
16W
FIGURE 7.15 A Typical Rigid Disk Specification as
Provided by a Disk Drive Manufacturer
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