Samsung SpinPoint M8 - Performance Specifications

Spinpoint M8 Product Manual REV 2.7
8
SPECIFICATIONS
3.4 Performance Specifications
Table 3-4: Performance Specifications
NOTES:  Seek time is defined as the time from the receipt of a read, write or seek command until the actuator has
repositioned and settled on the desired track with the drive operating at nominal DC input voltages and
nominal operating temperature.
 Average seek time is determined by averaging the time to complete 1,000 seeks of random length.
 Average latency is the time required for the drive to rotate 1/2 of a revolution and on average is incurred
after a seek completion prior to reading or writing user data.
 Startup time is the time elapsed between the supply voltages reaching operating range and the drive being
ready to accept all commands.
 Actual rotational speed can be different a little.
Performance specification is limited to the room temperature & normal voltage condition.
DESCRIPTION
ST320LM001 ST500LM012 ST750LM022 ST1000LM024
Seek Time (RD/WRT, Typ)
Average seek time
Track to track seek time
Full stroke seek time
12/14 ms
2/4 ms
22/24 ms
`
Average Latency
5.6 ms
Data Transfer Rate (Max)
buffer to/from media
host to/from buffer
145Mbits/s
600 MB/s
Rotational Speed
5400 RPM Class
Startup Time (Typ)
Power on to Drive Ready
Standby to
Drive Ready
3.0 sec
2.5 sec