[ale] "Cost" of raid?

[Jeff Hubbs]

Robert -

What's the machine going to be doing?

- Jeff


On Thu, 2002-09-26 at 15:58, Robert L. Harris wrote:
> 
> 
> 
>   I'm effectively "pricing" raid for a system on our network.  Currently
> they have 4x18Gig disks, Raid 0 giving them 72Gigs available.  I've done
> a breakdown of how much disk is available, what will be the effects on
> space and redundance.  
> 
>   One question hit me I'm not sure how to answer though.  How much
> slower is Raid 5 than a Raid 0+1?  Will it be noticable?  This system is
> very IO intensive with an average load around 0.8.
> 
>   The box is a dual-P3-850 with 4x18Gig SCSI Cheetas.
> 
> 
> :wq!
> ---------------------------------------------------------------------------
> Robert L. Harris                
>                                
> DISCLAIMER:
>       These are MY OPINIONS ALONE.  I speak for no-one else.
> FYI:
>  perl -e 'print $i=pack(c5,(41*2),sqrt(7056),(unpack(c,H)-2),oct(115),10);'
> 
> 
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