Re: [Xen-users] SW RAID powered Xen node - knowledgeable feedback much needed

[Jonathan Tripathy <jonnyt@xxxxxxxxxxx>]

On 26/10/10 20:25, office@xxxxxxxxxxx wrote:
> I would like to know your opinion on the viability of a SW RAID 1 powered
> Xen node. The CPU is a i7-920 Quad core, 2.66Ghz, 8MB cache and 8GB of RAM.
> The 2 HDDs are absolutely normal (no raptor, 10k-15k etc - just normal
> SATA) and there's no HW RAID. I was thinking to allocate some 70% of the
> resources to VEs and the rest to the node itself.
>
> Can this be done reasonably?
>
> Adding HW raid would mean an 60% price increase which would lead to 60%
> more VEs on the node. Would the 60% increase in VEs count but with HW RAID
> be preferable over the SW RAID with less VEs?
>
> Thanks a lot in advance for any knowledgeable feedback.
>
>    
From personal experience, I can say that unless you are going to spend 
a lot of money on an expensive RAID controller, just go with software 
RAID. We have servers that use Linux's software RAID (mdadm) and it is 
fantastic!
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