Jump to content

Welcome to Geeks to Go - Register now for FREE

Geeks To Go is a helpful hub, where thousands of volunteer geeks quickly serve friendly answers and support. Check out the forums and get free advice from the experts. Register now to gain access to all of our features, it's FREE and only takes one minute. Once registered and logged in, you will be able to create topics, post replies to existing threads, give reputation to your fellow members, get your own private messenger, post status updates, manage your profile and so much more.

Create Account How it Works
Photo

hard drives


  • Please log in to reply

#1
redcrypt

redcrypt

    Member

  • Member
  • PipPip
  • 64 posts
How important is the cache on a HDD? I see some for 8mb some for 16 and some for 32 mb. Is there a noticeable difference in a 32 over a 16? Is it an important factor to consider when purchasing a new one?

Also is average latency important? I see some hard drives with more cache faster seek time and read time but slower latency and that doesnt make sense to me. One reason is probably cuz I dont really know what latency is but i would assume lower is better.
Can anyone help me out in what to look for when buying a new hard drive
  • 0

Advertisements


#2
Neil Jones

Neil Jones

    Member 5k

  • Member
  • PipPipPipPipPipPipPipPip
  • 8,476 posts
Cache is relatively important. The bigger the cache the more stuff it holds. As cache is far faster than the physical mechanics of the drive, if a drive can get stuff out of cache rather than scan the drive then performance will be faster.

As to latency - Latency is directly related to the spindle speed of the drive. The faster the disk is spinning, the quicker the correct sector will rotate under the heads, and the lower latency will be. On average, latency will be half the time it takes for a full rotation of the disk.

Here's a web page going into more detail:
http://www.storagere...posLatency.html
  • 0






Similar Topics

0 user(s) are reading this topic

0 members, 0 guests, 0 anonymous users

As Featured On:

Microsoft Yahoo BBC MSN PC Magazine Washington Post HP