Technical Information 1-27
Table 1-18 3.2-GB Hard Disk Drive Specifications
Feature
Specification
Hard Disk Drive
3.2-GB Western Digital Caviar (WDAC33200-00LA)
Physical Configuration
Formatted Capacity
Number of Disks
Data Surfaces
Number of R/W Heads
3249 MB
3
5
5
Maximum Data Rate from
Media
114 Mbps (Megabits per second)
Bytes per Sector
512 (default)
Setup Geometry of Drive
6296 cyl x 16 heads x 6,346,368 sectors
Servo Type
Embedded
Recording Method
GCR 8,9 PRML
Performance
Track to Track Seek
(typical)
3.0 ms
Average Seek,
Read/Write
11.5/13.5 ms
Maximum
Seek,
Read/Write
15.0/17.0 ms
Average
Latency
5.8 ms
Rotation Speed
5200 RPM
Data Transfer Rate
Buffer to Disk (Mbits/s)
114 max
Buffer to Host
(Mbytes/s)
16.6 max
Interleave
1: 1
Buffer
Size
256 Kbytes
Power on to Ready (typical)
11 sec
Power on to Ready (max)
18 sec
Spindle Stop Time (typical)
6 sec
Start/Stop Cycles
(minimum)
40,000
MTBF
350,000 hours
MTTR
10 minutes
Data Reliability
< 1 unrecoverable error per 10
13
bits read
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