Take the 2-minute tour ×
Server Fault is a question and answer site for professional system and network administrators. It's 100% free, no registration required.

I am curious on if it is possible to have an implement of RAIDZ and/or RAIDZ2 in the MD driver in the Linux kernel?

From my understanding of it is that the RAIDZ version is equivalent to a RAID 5, and that a RAIDZ2 is equivalent to a RAID 6.

The main difference is that the stripe size can be variable for RAIDZ as opposite to RAID 5/6 from my understanding, which helps performance.

So what I am wondering is would it be possible to add this performance enhancing technique to RAID 5 & 6 in the MD driver in the kernel? Or is it tied too closely to how the ZFS works?

share|improve this question
add comment

1 Answer

up vote 1 down vote accepted

Have you read Jeff Bonwick's blog on RAID-Z?

In it he focuses on how RAID-Z is a solution to the RAID-5 write hole problem and explicitly mention that reconstructing a RAID-Z array is closely tied to ZFS and its meta data.

share|improve this answer
    
Doh! I had a feeling that i was missing something when i made the question, thanks! –  Pharaun Aug 22 '10 at 22:40
add comment

Your Answer

 
discard

By posting your answer, you agree to the privacy policy and terms of service.

Not the answer you're looking for? Browse other questions tagged or ask your own question.