HP Professional ap550 Compaq Professional Workstation AP550 Maintenance & - Page 175
Table 7-15, GB Ultra3 SCSI Hard Drive, Capacity, Transfer rate, Seek time typical
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Physical and Operating Specifications 7-19 Table 7-15 18-GB Ultra3 SCSI Hard Drive Capacity 18.2 GB Transfer rate Media 151 to 257 Mbits/s Asynchronous 6.0 MB/s Synchronous Up to 40.0 MB/s Seek time (typical) Single track 0.8 ms Average 6.9 ms Full stroke 15.0 ms Disk rotation speed 7200 rpm Cylinders 133,816 Data heads/cylinder 8 Sectors/track 227 to 387 (16 zones) Buffer size 2048 KB NOTE: Drive performance may vary slightly, depending upon the vendor.
Physical and Operating Specifications
7-19
Table 7-15
18-GB Ultra3 SCSI Hard Drive
Capacity
18.2 GB
Transfer rate
Media
151 to 257 Mbits/s
Asynchronous
6.0 MB/s
Synchronous
Up to 40.0 MB/s
Seek time (typical)
Single track
0.8 ms
Average
6.9 ms
Full stroke
15.0 ms
Disk rotation speed
7200 rpm
Cylinders
133,816
Data heads/cylinder
8
Sectors/track
227 to 387 (16 zones)
Buffer size
2048 KB
NOTE:
Drive performance may vary slightly, depending upon the vendor.