[Beowulf] Beowulf Storage Node

[Joe Landman]

Matt Lawrence wrote:
> On Sat, 11 Apr 2009, Залетнев Дмитрий wrote:
> 
>> I have a motherboard with 4x SATAII-ports and without RAID. If I'll 
>> connect to these ports 4 identical SATAII 250 GB 7200 rpm HDDs and 
>> install Linux, is it possible to have software RAID 0 using Linux?
> 
> Sure it is.  The only issue you may run into is that the partition 
> containing /boot can't be on software RAID, grub & lilo don't know how 

Not true.  We ship units with SW /boot and / all the time, running 
RHEL5.x.  Grub (late model) knows how to handle this, though lilo might 
not.  The issue is, for Redhat folks, you *have* to use their kernels, 
which have special dmraid magic, rather than md raid magic.  The latter 
works ... *much better* than the former, but you have to upgrade (read 
as rip out) nash and several others to get the unit to boot other than 
baseline kernels.


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Joseph Landman, Ph.D
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