2 Comments on “If a disk drive’s rotational speed is 100 revolutions per minute, what is its average rotational latency”

1. kelly says:

   December 6, 2012 at 11:10 pm

   la respuesta es 5 ms

   Average rotational latency

   – Appx. 5.5 ms for 5400-rpm drive
   -Appx. 2.0 ms for 15000-rpm drive

   
   
   
   0

   
   
   
   0
2. Gary says:

   November 25, 2013 at 10:05 am

   Rotational latency = (1/(rpm/60))*1/2 sec.

   Here rpm = 100

   Therefore, rotational latency
   = (1/(100/60))*1/2 sec
   = (60/(100*2)) sec
   = 60/200 sec
   = 0.3 sec

   
   
   
   0

   
   
   
   0