Possible to write an implement of RAIDZ or RAIDZ2 for the MD driver in the Linux kernel?

Posted by Pharaun on Server Fault See other posts from Server Fault or by Pharaun
Published on 2010-08-20T20:09:46Z Indexed on 2012/09/03 15:40 UTC
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Performance

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raid

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linux-kernel

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raidz

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?

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