Performance Characteristics; Internal Drive Characteristics (Transparent To User); Scsi Performance Characteristics (Visible To User) - Seagate ST3146854LC - Cheetah 146.8 GB Hard Drive User Manual

4.0

Performance characteristics

4.1

Internal drive characteristics (transparent to user)

Drive capacity
Read/write heads
Bytes/track
Bytes/surface
Tracks/surface (total)
Tracks/inch
Peak bits/inch
Internal data rate
Disc rotational speed
Average rotational latency
4.2

SCSI performance characteristics (visible to user)

The values given in Section 4.2.1 apply to all models of the Cheetah 15K.4 SCSI family unless otherwise spec-
ified. Refer to Section 9.10 and to the SCSI Interface Product Manual for additional timing details.
Cheetah 15K.4 SCSI Product Manual, Rev. D
ST3146854 ST373454
146.8 73.4
8 4
471,916 471,916
18,351 18,351
50,864 50,864
85,000 85,000
628 628
685-1,142 685-1,142 685-1,142 Mbits/sec (variable with zone)
15k 15k
2.0 2.0
ST336754
36.7 GByte (formatted, rounded off values)
2
471,916 Bytes (average, rounded off values)
18,351 Mbytes (unformatted, rounded off val-
ues)
50,864 Tracks (user accessible)
85,000 TPI
628 KBPI
15k r/min
2.0 msec
11