[CentOS-mirror] CentOS-6 CDs decision needs some stats

On Sat, Jun 11, 2011 at 12:36 AM, Ray Morris <support at bettercgi.com> wrote:

> Would it be good to be able to serve the same number of users
> while reducing resource consumption, including bandwidth, by 70%?
>
> Let's get rid of some of the noise in the data and compare just
> DVD versus CD. Using the NetNITCO data let's look at only the
> most rcent release, 5.6, and for less noise let's look at
> the most popular CPU, i386:
>
>
> 65 /5.6/isos/i386/CentOS-5.6-i386-bin-DVD.iso
> 25 /5.6/isos/i386/CentOS-5.6-i386-bin-1of7.iso
> 20 /5.6/isos/i386/CentOS-5.6-i386-netinstall.iso
> 16 /5.6/isos/i386/CentOS-5.6-i386-bin-5of7.iso
> 13 /5.6/isos/i386/CentOS-5.6-i386-bin-4of7.iso
> 13 /5.6/isos/i386/CentOS-5.6-i386-bin-2of7.iso
> 12 /5.6/isos/i386/CentOS-5.6-i386-bin-3of7.iso
> 9 /5.6/isos/i386/CentOS-5.6-i386-bin-7of7.iso
> 9 /5.6/isos/i386/CentOS-5.6-i386-bin-6of7.iso
> 5 /5.6/isos/i386/CentOS-5.6-i386-LiveCD.iso
>
> CD 1 is downloaded 38% percent as often as the DVD -
> a significant amount. So people seem to want CDs a good
> portion of the time. Also interesting is that CD 6 and 7
> are downloaded about 1/3rd as much as CD 1. It looks like
> a lot of people are like me in that they do installations
> with only the first CD or two and don't need to download
> all 4 GB.
>
> That's a 70% reduction in bandwidth, time, disk io on the
> mirrors when they get CD #1 & #2 instead of the full DVD.
> Every user who is served by downloading only 2 CDs totalling
> 1.2 GB instead of 4 GB is good for the mirrors, good for
> the network, and good for the users. If they are forced to
> download the DVD instead, that means they use three times
> the resources that they currently do.
>
> I don't currently run a mirror because I don't have quite
> enough bandwidth available, but if I were running a mirror
> I'd rather serve up 1.2 GB to each of those users than 4 GB.
> --
> Ray Morris
> support at bettercgi.com
>


Duh! Yeah! What he said!  ;-)

I mean, I strongly agree with Ray Morris.


Regards

Maulvi
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