HP Pavilion 6600 HP Pavilion PCs - (English) Seagate Hard Drive U Series 8 Man - Page 13

Recording and interface technology, Physical characteristics, Seek time

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6 U8 Family Product Manual, Rev. B 1.3 Recording and interface technology Interface ATA Recording method 24/26 EPRML Recording density BPI (bits/inch) 349,374 Track density TPI (tracks/inch) Areal density (Mbits/inch2 max) 18,700 6,536 Spindle speed (RPM) (± 0.2%) 5,400 Internal data-transfer rate (Mbits/sec max) 285.5 I/O data-transfer rate (Mbytes/sec max) 16.6 (PIO mode 4) 66.6 (Ultra DMA mode 4) Interleave 1:1 Cache buffer (Kbytes) 512 256 (ST34313A) 1.4 Physical characteristics Drive Specification Maximum height Maximum width Maximum length Typical weight (mm) (inches) (mm) (inches) (mm) (inches) (grams) (pounds) ST31722A, ST313021A ST38410A, ST34313A 26.1 1.028 101.8 4.020 147.0 5.78 590 1.3 1.5 Seek time Seek measurements are taken with nominal power at 25°C ambient temperature. All times are measured using drive diagnostics. The specifications in the table below are defined as follows:

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6
U8 Family Product Manual, Rev. B
1.3
Recording and interface technology
1.4
Physical characteristics
1.5
Seek time
Seek measurements are taken with nominal power at 25°C ambient
temperature. All times are measured using drive diagnostics. The spec-
ifications in the table below are defined as follows:
Interface
ATA
Recording method
24/26 EPRML
Recording density BPI (bits/inch)
349,374
Track density TPI (tracks/inch)
18,700
Areal density (Mbits/inch
2
max)
6,536
Spindle speed (RPM) (
±
0.2%)
5,400
Internal data-transfer rate
(Mbits/sec max)
285.5
I/O data-transfer rate
(Mbytes/sec max)
16.6 (PIO mode 4)
66.6 (Ultra DMA mode 4)
Interleave
1:1
Cache buffer (Kbytes)
512
256 (ST34313A)
Drive Specification
ST31722A, ST313021A
ST38410A, ST34313A
Maximum height
(mm)
(inches)
26.1
1.028
Maximum width
(mm)
(inches)
101.8
4.020
Maximum length
(mm)
(inches)
147.0
5.78
Typical weight
(grams)
(pounds)
590
1.3