SUMMARY Amount of disk space lost when using raid 5?

From: Dave Lowenstein (dlowenst@mail.sdsu.edu)
Date: Mon Nov 04 2002 - 11:54:15 EST

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Okay the word on the street is that the equation is :

(number of disks - 1) * size of disks

That is, you lose one disk to parity with Raid 5. So with 10 36GB disks
I'll get 9 * 36 GB of space, or 324GB.

Thanks to those who helped

Dave

Dave Lowenstein
Programmer/Analyst
Instructional Technology Services
San Diego State University
(619)594-0270
http://www-rohan.sdsu.edu/dept/its
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