State Of Raid 5 in RELENG_6

Søren Schmidt sos at
Tue Sep 13 23:32:23 PDT 2005

On 14/09/2005, at 2:23, Benjamin Close wrote:

> Hi All,
>    With FreeBSD 6 getting closer, I was curious about what was  
> happening with raid 5 support on ata-raid.
> At present, raid 5 arrays are detected and can be used, though  
> looking at the code, there is no support for parity. Hence running  
> raid 5 is effectively running raid 0.
> If this is likely to be the case when 6 is shipped, there should at  
> least be a warning regarding this at boot time.

Actually my plan was to disable it entirely. It should newer have  
slipped in now that we have 20/20 hindsight, but getting the metadata  
gathering code tested seemed like a good idea to me back when...

Søren Schmidt
sos at

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