Collection of useful, relevant or inane places on the the Internets for 26 Aug 10:
- The Four Horsemen of Storage System Performance: The Rule of Spindles – Stephen Foskett, Pack Rat –
Why do some data storage solutions perform better than others? What tradeoffs are made for economy and how do they affect the system as a whole? These questions can be puzzling, but there are core truths that are difficult to avoid. Mechanical disk drives can only move a certain amount of data. RAM caching can improve performance, but only until it runs out. I/O channels can be overwhelmed with data.
Always worth knowing some basics about related systems. This post is worth the read on why more drives are better than faster drives, mostly.
- Bandwidth is not the bottleneck — The Endeavour –
If bandwidth were the only limitation, the average page should load four times faster using the average bandwidth. The internet protocols that have served us remarkably well were designed for very different usage scenarios. Hölzle says that web pages could load between two and four times faster if we make slight changes to infrastructure protocols and their implementations.
Podcast, download and listen.
- A Paucity of Ports – ACM Queue –
The problem is that you have to blame the correct change. Nothing is worse than venting your spleen at someone and then being proved wrong and having to admit that you were wrong. I hope you didn't vent your spleen at the network admins, because in this case you are definitely wrong.
- Daring Fireball: Creep Executive Officer – Gruber is right, Schmidt is creepy and Google is getting less acceptable every day. Gruber has some good evidence and points in this article.
- Juniper Networks :: Technical Documentation :: Understanding Multiple VLAN Registration Protocol (MVRP) on EX Series Switches –
You can configure Multiple VLAN Registration Protocol (MVRP) on Juniper Networks EX Series Ethernet Switches. The primary purpose of MVRP is to manage dynamic VLAN registration in a LAN. In managing dynamic VLAN registration, MVRP also prunes VLAN information. MVRP can also be used to dynamically create VLANs in switching networks.