Q

How much hard disk drive space should I actually use?

It was once a common practice to use only up to 80% of the total hard disk drive capacity for optimal performance -- beyond 80% of capacity usage and it was time to buy more disks. Is still a good formula to follow? If so, does it apply to different RAID configurations?
I still like to follow this rule of thumb, no matter how much data is concerned, and not for performance reasons. Rather, once 80% of my storage is used, I start worrying about running out of space. It may surprise you to learn that actual storage utilization is usually much lower than 80%! In my study of utilization across industries and operating systems, I found the average utilization of production systems was actually below 40%.
This was first published in December 2004

Dig deeper on RAID

Pro+

Features

Enjoy the benefits of Pro+ membership, learn more and join.

Have a question for an expert?

Please add a title for your question

Get answers from a TechTarget expert on whatever's puzzling you.

You will be able to add details on the next page.

0 comments

Oldest 

Forgot Password?

No problem! Submit your e-mail address below. We'll send you an email containing your password.

Your password has been sent to:

-ADS BY GOOGLE

SearchSolidStateStorage

SearchVirtualStorage

SearchCloudStorage

SearchDisasterRecovery

SearchDataBackup

Close