16 | Barracuda 9 Installation Guide, Rev. B |
Characteristics | ST19171 |
Interface | SCSI |
| Ultra SCSI)1 |
Capacity |
|
Unformatted | 11.7 Gbytes |
Formatted2 | 9.1 Gbytes |
Recording |
|
Cylinders (user) | 5,274 |
Read/write data heads | 20 |
Servo heads | Embedded |
Seek time3 |
|
Average read | 9.7 msec |
Average write | 10.7 msec |
Disc rotation |
|
RPM | 7,200 ±0.5% |
Average latency | 4.17 msec |
Internal transfer rate | 80 to 124 |
(Mbits/sec, variable with zone) | |
Max sync. SCSI transfer rate | |
N | 20 Mbytes/sec |
W/WD/WC/DC | 40 Mbytes/sec |
512 Kbytes | |
| 2,048 Kbytes (optional) |
1Can also be operated according to
2Standard factory units are formatted as follows:
512 data bytes per sector
9 spare sectors per cylinder
1 cylinder at the inner track reserved for spares
3Includes