Virtualization, Cloud, Infrastructure and all that stuff in-between

My ramblings on the stuff that holds it all together

Category Archives: Web 2.0

New Blog Furniture


Have been playing with a few new widgets, and I figured out how to add HTML code into the pages that hosts.

If you need to do it – just add a “Text” widget and then you can put any HTML code you like in that and it gets processed as part of the page load.

So, for now I’ve added clustrmaps – only takes a couple of mins – instructions here

I’ve also added Feedburner for my RSS feeds, I’ve seen a big spike in traffic to my blog over the last week


I’m trying to figure out where it is coming from…  the default stats (where this site is hosted) don’t really go into much more detail than number of hits; and it doesn’t seem to tally up with the search-engine results or click referrals – so maybe that will shed some light on it.

Otherwise pop a comment on this post and let me know what you find interesting and I’ll try to tailor some content around your needs, the How to deploy a virtual machine from a template seems to be the most popular post so far.


Hot-Swap Datacentres


There’s an interesting post over on Forrester research blog by James Staten. he’s talking some more about data centres in a container; making the data centre the FRU rather than a server or server components (Disk, PSU etc.).

This isn’t a new idea but it I’m sure the economics of scale currently mean this is currently suitable for the computing super-powers (Google, Microsoft – MS are buying them now!) – variances in local power/comms cost could soon force companies to adopt this approach rather than be tied to a local/national utility company and their power/comms pricing.

But just think if you are a large out-sourcing type company you typically reserve, build and populate data centres based on customer load, now this load can be variable; customers come and go (as much as you would like to keep them long-term this is becoming a commodity market and customer’s demand you are able to react quickly to changes in THEIR business model – which is typically why they outsource – they make it YOUR problem to service their needs).

It would make sense if you could dynamically grow and shrink your compute/hosting facility based on customer demand in this space – thats not so easy to do with a physical location as you are tied to it in terms of power availability/cost and lease period.

New suite build out at a typical co-lo company can take 1-2 months to establish networking, racks, power distribution, cabling, operational procedures etc. (and that’s not including physical construction if it’s a new building) – adopting the blackbox approach could significantly reduce the start-up time and increase your operational flexibility

Rather than invest in in-suite structured cabling, rack and reusable (or dedicated) server/blade infrastructures why not just have terminated power, comms and cooling connections and plug them in as required within a secured warehouse like space.

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Photos from Sun Project Blackbox

You could even lease datacentre containers from a service provider/supplier to ensure there is no cap-ex investment required to host customers.

If your shiny new data centre is runs out of power then you could relocate it a lot easier (and cheaply) as it’s already transportable rather than tied to the physical building infrastructure; you are able to follow the cheapest power and comms – nationally or even globally.

As I’ve said before the more you virtualize the contents of your datacentre the less you care about what physical kit it runs on… you essentially reserve power from a flexible compute/storage/network “grid” – and that could be anything/anywhere.

Blogging from a Blackberry


This looks promising, I like the idea of being able to post to my blog from my BB – hopefully the OTA installer URL will be posted soon here

You can look forward to a whole new era of bad spelling and fat-fingered-ness hitting the blogsphere via this blog lol 🙂

When Web 2.0 Goes Bad…


Interesting article here and here on “side-jacking”; discussing people snooping session ID’s from URL strings to possibly bypass SSL security which is normally only applied at logon and then content typically reverts to non-SSL.

I’ve seen similar issues several times at airport or public Internet “Kiosks” and have accidentally walked into people’s airline reservations, webmail etc. by looking in the browser cache – and sometimes even in the address bar drop-down! as those machines don’t get wiped when you start/stop using them (easyInternet used to do a total wipe/re-provision of the OS once you’d finished using their machines)

Moral of the story? public kiosks are bad for doing anything you don’t want to share with other people even if you’re clever and choose the “secure session” option and if you can “sniff” a public WiFi connection you can get all of this over the air so game over anyway.

Of course session time-out typically means this is only vaid for “fresh” data… but still worth bearing in mind.

This is nothing new and has been around since the Internet started; but you’d think all the hip ‘2.0 tech companies and users would be up on this by now..