[Beowulf] OT: Software RAID & Multipath

Leif Nixon nixon at nsc.liu.se
Tue Jan 9 07:35:32 EST 2007


Chris Samuel <csamuel at vpac.org> writes:

> Now, if I wanted to stripe accesses to the FAStT down each controller I seem 
> to have two options:
>
> 1) Use software RAID-0 with MD. My concern then is that I don't know
> whether the RAID-0 will kick in *before* the multipath and think it
> can stripe over 4 drives (which would be bad).

I suspect this is deprecated these days, but I have handled situations
like this by using the *MD* multipath support instead. Then you can
explicitly define your multipath devices and stripe them together, all
in /etc/mdadm.conf.

-- 
Leif Nixon                       -            Systems expert
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National Supercomputer Centre    -      Linkoping University
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