Messages in this thread | | | From | "H. Peter Anvin" <> | Subject | md: RAID-6 patch available for testing | Date | 24 Dec 2003 23:07:51 -0800 |
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[Already announced to linux-raid, but I thought it might get wider distribution in this list.]
For those that don't know, I've been working on adding RAID-6 (dual failure recovery) to the md system for a while. It started out as a project because the math was interesting, and Penguin Computing for donated a very much needed test system (thanks!)
Well, at least I have a piece of code that passes my relatively simple functionality tests. Still, that's news, and this is the first RAID-6 snapshot that isn't *known* to be broken :)
I can at least mount filesystems, read and write data, reboot the system and have the data still there, with 1 or 2 disks lost, and do a reconstruction once the drives are added back in.
New development snapshot at:
ftp://ftp.kernel.org/pub/linux/kernel/people/hpa/raid6-20031224c-experimental.tar.gz
Please test it out and let me know how badly it sucks :)
At some point I'll try to run some benchmarks. There is also a lot of optimization still to be done.
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