CDN, niveaux, Blackstar

septembre 24, 2022

3:30 PM

3:30 p.m.

(b)

███████ Freiss

The image is a technical illustration titled "Proactive CDN." It visually represents the workflow of content delivery in a network using a proactive Content Delivery Network (CDN) system. The illustration is divided into vertical sections labeled as "Application," "Edge," "Origin," "Webi," "Content priming," and "Store." These sections indicate different stages and components involved in the content delivery process.
Arrows are used to denote the flow of data and requests between these components. For example, a "Manifest request" is sent from the "Application" to the "Edge," which then requests a "Manifest file" from "Origin." The "Edge" retrieves a "Video segment" from "Origin" and sends it back to the "Application." Additionally, "Content priming" receives a "Priming hint" from "Webi" and sends a "GET (URL1)" request to "Store," which then returns a "Video segment."
The chart also includes a "Total time" indicator on the left, showing the overall duration of the process. The colors used are primarily blue and orange, which distinguish different stages and actions. The illustration serves as an informative guide on how a proactive CDN system operates, emphasizing efficiency in data retrieval and delivery.

5:30 PM

5:15 p.m.

Facebook CDN: Minimizing Latency and Jitter for Content Delivery - Facebook - Network@Scale2017

https://youtu.be/CbbeSg1t224

5:45 PM

5:45 p.m.

: )

Facebook execs Sheryl Sandberg and Mike Schroepfer | Full interview | Code 2018

https://youtu.be/i3QBy5T0qxw

52,293 views

30 May 2018

Facebook executives Sheryl Sandberg and Mike Schroepfer took the Code Conference stage with Recode's Kara Swisher and Peter Kafka.

The CTO and COO of Facebook talked about how Facebook is continuing to deal with the fallout of Cambridge Analytica, how the company working on stopping fake news, and more.

The image is a screenshot of an informational webpage from phoenixnap.com discussing data center tiers. The page title, "What Are Data Center Tiers?", is prominently displayed at the top, followed by text explaining the standardized ranking system for data centers. This system ranks facilities from 1 to 4 based on their reliability, with higher numbers indicating better performance. The ranking is primarily determined by the Uptime Institute and considers factors such as uptime guarantees, fault tolerance, and service cost. The text notes that while these ratings are optional, many major facilities pursue them to build credibility and plan for future expansions. The screenshot features a clean and straightforward layout with a white background, black text, and a blue header that includes a promotional banner for cloud services at the top.

6:15 PM

6:15 p.m.

I didn't know, that a tier 1 data centre, is worse, than a Tier 4 data centre!

The screenshot displays a comparison table of data center tiers from phoenixnap.com. The table outlines four tiers (1 to 4), summarizing their features and benefits. Key parameters compared include uptime guarantee, downtime per year, component redundancy, and pricing. Tier 1 offers the least uptime guarantee of 99.671% with no redundancy and is targeted at small companies with simple requirements. It is the most affordable. Tier 2 provides partial redundancy and a slight increase in uptime and is suitable for SMBs. Tier 3 further improves uptime to 99.982% and includes full N+1 redundancy, appealing to growing businesses. Tier 4, with the highest uptime of 99.995% and fault tolerance, caters to large enterprises and government entities, offering 24/7/365 staffing.
The page advertises with a banner at the top for free bandwidth in Singapore using Bare Metal Cloud. The table is simple and clean, with a white background and contrasting dark text. The tiers are differentiated by increasing price symbols from one dollar sign ($) to four ($$$$), indicating the cost-effectiveness of each tier relative to its offerings.

6:30 PM

6:15 p.m.

(b)

Very interesting.

I think confusion arose, as in banking, tier 1 is the best, but again, I am wrong on this too. Gartner, says that there are 4 mature markets, plus 7 emerging markets, where the banks are graded in comparison to banking market size. So, you'd think a number 1, is higher. But it's actually, to do with the bank balance sheet. How many assets to balance their debts. Basel Accords.

I'm reading this: