Parity declustered RAIDz/mirror

[thegreatgazoo]

Intel is working on parity declustered RAIDz/mirror for ZFS on Linux. Designs and early prototype/code will be shared with the community when available. Feedback from the community will be greatly appreciated.

More details to come later.

[ronnyegner]

@thegreatgazoo What exactly is a "declustered RAIDz/mirror"?

[kernelOfTruth]

@ronnyegner I had to look it up http://www.pdl.cmu.edu/PDL-FTP/Declustering/ASPLOS.pdf ,

http://www.enterprisestorageforum.com/technology/features/article.php/3883346/Can-Declustering-Save-RAID-Storage-Technology.htm ,

https://rmacc.org/sites/default/files/RMACC2014_AjakumarRajasekharan.pdf ,

http://arxiv.org/pdf/1209.6152.pdf

So the main advantage is faster reconstruction of the disk array once a drive fails

[dswartz]

Link is hosed?

"kernelOfTruth aka. kOT, Gentoo user" [email protected] wrote:

@ronnyegner http://www.pdl.cmu.edu/PDL-FTP/Declustering/ASPLOS.pdf , http://www.enterprisestorageforum.com/technology/features/article.php/3883346/Can-Declustering-Save-RAID-Storage-Technology.htm

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[kernelOfTruth]

@dswartz worked for me, might have been a browser issue - better now ?

[dswartz]

Fails consistently with 500 server configuration error on my kindle. Maybe the site is not handling mobile browsers right? I am in the road ATM so I can't really check now...

"kernelOfTruth aka. kOT, Gentoo user" [email protected] wrote:

@dswartz worked for me, might have been a browser issue - better now ?

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[thegreatgazoo]

Slides at the developer summit 2015: https://drive.google.com/file/d/0B4BF1vnv6p0-bGVrQXg3dmY1Uzg/view

[PrivatePuffin]

@kpande According to @ahrens this is actually still/again active.

https://twitter.com/mahrens1/status/1191717726118563842

[ofaaland]

It is active. Latest code is currently at #9558

[PrivatePuffin]

@ofaaland You don't say:

commented on 5 Nov 2019

[behlendorf]

PR #10102 contains the latest version of dRAID.

[behlendorf]

PR #10102 has been merged adding the dRAID feature. Closing.