Q

RAID 10 and RAID 01: Same or different?

The differences between RAID 10 and RAID 01 are explained.

For four disks, it seems to me that RAID 10 and RAID 01 would be the same thing. If this is true, then what about the controller? Does it affect the data-transfer rate if the controller processes mirroring, then striping, or striping then mirroring (in the case of four disks)?

RAID 10 and RAID 01 are not the same thing and it does matter. RAID 01 is a mirrored configuration of two striped sets. RAID 10 is a stripe across a number of mirrored sets.

RAID 10 provides better fault resilience and "rebuild" performance than RAID 01. Both array types provide very good to excellent overall performance by combining the speed of RAID 0 with the redundancy of RAID 1 without requiring parity calculations.

This was first published in October 2005

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