Re: Distribution CPG Protocol

[Alex French <afrench@vianetworks.com>]

The "disk space" parameter has been discussed in various forms; I agree 
that the total disk space a surrogate (or, more correctly, a peer CDN) has 
is not a useful parameter. However, I do think the disk space allocated (or 
reserved) for a particular site could be a useful parameter, as a way of 
enforcing a contractual SLA between the content provider and a CDN, or 
between two peered CDNs. Although today few CDNs offer reserved disk space, 
this may change...


At 03:12 PM 13/01/2001, John Martin wrote:
>Firstly with regards disk space, it is my experience that the last thing a 
>surrogate runs out of is disk space. Period. In fact, with a busy cache, 
>objects will expire before the replacement algorithm even comes into play. 
>I'm not sure how streaming (multi-GB single objects) will impact this but 
>I'm pretty sure that with multi-TB caches a reality today, and the ability 
>to cache partial objects, it won't be a problem. I could be wrong.

--
Alex French
Consultant, Technical Services                     E: afrench@vianetworks.com
VIA NET.WORKS, Inc.                                T: +353 (86) 818 8118
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