Specifications
4-4 M axtor Atlas 10K III
Data is transferred from the disk to the read buffer at a rate of up to 55 MB/s in
bursts. Data is transferred from the read buffer to the SCSI bus at a rate of up to
6 MB/s in the asynchronous mode, or at up to 160 or 320 MB/s in the
synchronous mode. For more detailed information on interface timing, refer to
Chapter 6 .
Table 4-3 illustrates the timing specifications of the Maxtor Atlas 10K III hard
disk dr iv e.
Timing Specifications for Maxtor Atlas 10K III
1. Typical specifications assume 25°C ambient temperature, nominal supply
voltages, and no applied shock or vibration. Maximum specifications
assume worst case extremes of operating temperature, humidity, and
suppl y voltages.
2. Sequential Head Switch Time is the time from the conclusion of the last
sector of a track to the beginning of the first logical sector on the next
trac k of the sam e cylind e r .
3. Sequential Cylinder Switch Time is the time from the conclusion of the
last sector of a cylinder to the first logical sector on the next cylinder.
4. Random LBA.
5. 1/3 Stroke Seek is defined as any seek of maximum length cylinder/3. 1/
3 stroke seek may include one head switch.
6. Full Stroke Seek is defined as a seek from cylinder 0 to maximum cylinder
or vice versa. Full stroke may include one head switch.
7. SCSI “Hard Reset Time” is the time from Reset to Selection.
8. At p o wer on, s tart u p erro r algo ri t hms are used an d ma y exten d the
time to Dri v e Re ad y to a s lo n g a s 30 sec onds .
Sequential Head Switch Time ≤ . 27 ms typical (read)
≤ N/A
Sequential Cylinder Switch Time ≤ .3 ms typical (read)
≤ N/A
Random Average Seek (Read) <4.5 ms 5.1 ms
Random Average Seek (Write) 5.0 ms 5.5 ms
Average Rotational Latency 3 ms 3 ms
1/3 Stroke Seek (Read) <4 ms 4.5 ms
F ull-Stroke Seek ≤11.0 ms 13.0 ms
SCSI “Hard Reset T ime”20 ms 20 ms
Pow er On to Drive Ready 22 seconds 25 seconds
Power On to Selection 2.5 seconds 3 seconds