Справочник Пользователя для Samsung 3.5" hard disk drives

SPECIFICATIONS 
 

SpinPoint V40 Product Manual

 

8

 

 

Table 3-4 Performance Specifications 

  Seek Time (Rd/Wt, typical): 

Average seek time  

Track to track seek time  

Full stroke seek time 

 

8.9/10.0 msec 

0.8/1.0 msec 

16.5/17.5  msec 

  Data Transfer Rate: (Maximum) 

buffer to/from media 

host to/from buffer       

 

443 Mbits/s 

16.6/33/66/100 Mbytes/s 

  Average latency  

5.56 msec 

  Rotational Speed  

 5,400 

±

 0.35% rpm 

  Motor spin up time (Typical) 

10 sec 

  Motor spin down time (Typical) 

7 sec 

  Buffer size 

2048 Kbytes 

 

∗

 

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 rotate1/2 of a revolution and on 

average is incurred after a seek completion prior to reading or writing user data. 

 

∗

 

Spin up time is the time elapsed between the supply voltages reaching operating range 
and the drive being ready to accept all commands.