Virtualization, Cloud, Infrastructure and all that stuff in-between
My ramblings on the stuff that holds it all together
Category Archives: Datacentre
Silent Data Corruption in the Cloud and building in Data Integrity
Posted by on January 20, 2011
I was passed a link to a very interesting article on-line about silent data corruption on very large data sets, where corruption creeps undetected into the data read and written by an application over time. Errors are common in reading from all media and this would normally be trapped by storage subsystem logic and [...]
Virtualization – the key to delivering "cloud based architecture" NOW.
Posted by on June 23, 2008
There is a lot of talk about delivering cloud or elastic computing platforms, a lot of CxO’s are taking this all in and nodding enthusiastically, they can see the benefits.. so make it happen!….yesterday. Moving your services to the cloud, isn’t always about giving your apps and data to Google, Amazon or Microsoft. You [...]
A Closer look at Green IT and Microsoft’s new Container Data Centre in Chicago
Posted by on May 24, 2008
Link here – good visualisation about 10mins in of how their new Chicago data centre is laid out internally. With virtualisation breaking the traditional hardware/OS ties; this is becoming an increasingly appealing way of managing commodity compute grid resources for large organisations. Mike makes some good points about the de-comissioning of servers on a [...]
VMWare Server Performance – A Practical Example
Posted by on April 19, 2008
The following screen dump is from an HP DL380G5 server that runs all the core infrastructure under VMWare Server (the free one) for a friend’s company which I admin sometimes. It is housed in some co-lo space and runs the average range of Windows servers used by a small but global business, Exchange SQL, [...]
How does an HP Fibre Channel Virtual Connect Module Work?
Posted by on April 9, 2008
Techhead and I have spent a lot of time recently scratching our heads over how and where fibre channel SAN connections go in a c7000 blade chassis. If you don’t know, a FC-VC module looks like this, and you install them in redundant pairs in adjacent interconnect bays at the rear of the chassis. [...]
New Microsoft Data Centre is Container Based
Posted by on April 2, 2008
Article here, it’s coming people! Some interesting discussions on how you can measure the productivity of a container and come up with some common metrics to compare and contrast and handle charge-back.
HP iLo Very Slow for Installing an OS
Posted by on February 27, 2008
A bit of a disappointment; we’re trying to do a WinPE 2.0 CD/DVD based installation for our Windows 2003/2008 standard blade servers in an HP c7000 enclosure. Installing from a .ISO image presented to the iLo via the virtual media applet is dog-slow (5-10 times slower than from a physical CD/DVD- why is this? [...]
Mmmm, Big, Really Big Cisco Switches
Posted by on February 11, 2008
Over here and here like the idea of combining FC and Ethernet in one chassis; They’re not cheap though, more info and viewpoint here and spec here looks to be the next step up from 6500 series catalyst. Cool
