[Webinar] Streamline your web hosting managementRegister Today

x
  • Status: Solved
  • Priority: Medium
  • Security: Public
  • Views: 415
  • Last Modified:

Hard Drive - Looking for clarification on "Access Time"

The attached image shows the HDTune results for my old hard drive (Seagate Momentus 7200.4 ST9500420ASG 500GB 7200 RPM. It's not especially healthy.)

Take a look at the Access Time of 16.3 ms (yellow font). I think this represents the Seek Time + Latency Time. Am I correct?

HD Tune Results
0
jdana
Asked:
jdana
2 Solutions
 
tyson-edwardsCommented:
Access time is the "time that it takes to access" a particular block on a storage device.

In the case of a hard disk, it is typically Seek Time + Read Time to create a total Latency for the Access of a single block.
0
 
nobusCommented:
Access time is a general term
it is 1/2 of the seek time of the sum of the slowest and the fastest seek; say (seek to track 0 + seek to track 100)/2 if track 100 is the last track
add to this the time needed to actually access the data = read or write time; this in most cases is unimportant (time is micro seconds) , compared to the seek time (time = mili-secs)
0
 
Gerald ConnollyCommented:
Here is a good general definition http://en.wikipedia.org/wiki/Rotational_latency#Rotational_latency , but i think @nobus points out what it means in terms of HDtune.
0

Featured Post

Free Tool: Path Explorer

An intuitive utility to help find the CSS path to UI elements on a webpage. These paths are used frequently in a variety of front-end development and QA automation tasks.

One of a set of tools we're offering as a way of saying thank you for being a part of the community.

Tackle projects and never again get stuck behind a technical roadblock.
Join Now