Archive for the ‘All’ Category

An exciting Saturday…. No Electricity or internet for 11 hours and worst of all No Strictly Come Dancing!

Sunday, October 9th, 2011

I’ll set the scene, at the beginning of September (September 5th 2011) 

  1. one of the power supplies on a computers workstation, went bang and failed – reported here on Andysworld!,
  2. another power supply on another workstation, failed – OCZ power supply.
  3. Humax Fox-SAT STB power supply failed – reported here on Andysworld!.
  4. An electronic X10 switch failed which operates the backyard lamp.

Diagnosing the fault with the backyard lamp, I noticed and reported to Boot Ferrule Man, (a qualified Electrician) and my neighbour, the mains voltage coming into the house was 256v AC! (which I suspect had blown and damaged the electronic X10 switch).  Boot Ferrule Man stated that was far too high, and out of tolerence, but when I checked on the internet, I was confused by the reported tolerences of AC voltage supply in the UK. At this time, I had not associated this “possible fault” with the other items 1-3 above.

Saturday 8th October 2011, a neighbour in the shire, knocked on the door at 11.00am, asking if we had, had any damage the previous night (7th October 2011) at 9.00, because a few properties in the shire, had items which had stopped working, lightbulbs, Freeview STB, Washing Machines, Central heating pumps, Sky Boxes, television mast head amplifiers etc

We had not noticed any, issues that evening. they reported the fault to YEDL, later Saturday afternoon (3.15pm), a YEDL Engineer visited our house, and disconnected us, because they found the electrical impedance to the property was at 1.3 ohms, the maximum impedance allowable is 0.35 ohms, and stated that they had tested that day 280V AC, at a few properties, the fault lay in the common neutral to all the houses, and their was a fault outside of the property, possibly due to water ingress into the underground cabling.  I asked the YEDL engineers, what time did they think service would resume, and they stated, the Digging Team was scheduled to arrive at 6.15pm, and they could not do any work, until thy arrived, so they tidied their YEDL VANs! They gave me a time of 10.00pm! I noticed that the YEDL, are going through a re-branding to CE Electric UK. These were some of the labels on the VANs, although they still had YEDL uniforms!

So I decided to power-up the petrol generator for the fish house.

Coincidence you may think, because in April 2010, they were fixing a joint underground, see here.

The YEDL engineers arrived on site, to fix the fault, but had to wait for the “digging team” before they could start work, the digging team eventually arrived at approx 7.30pm, because I just come back from the Chinese with our dinner, to eat in the dark with our headtorches, and my NEW ZEBRALIGHT!, which of course I purchased from my friendly Boot Ferrule Man. ZEBRALIGHT! Review coming soon!

Our electricity was not re-connected and tested until approx 2.30am, so with hindsight, it was a good job, I connected the petrol generator for the fish house, and this is the longest runtime, I’ve had it running 11 hours@3000Watts.

New Impedance tested to house is 0.29 ohms.

A few photos of the event!

Bye Bye Steve Jobs – The IT World will miss you!

Thursday, October 6th, 2011

I’ve just picked up my iPad, and learnt Steve Jobs has died peacefully today, surrounded by his family.

Deeply saddened by his passing, but his legacy with live on, in the devices we now use everyday.

Still Numero Uno at Experts Exchange

Sunday, October 2nd, 2011
Still on top at Exchange Experts on 2 October 2011

Still on top at Exchange Experts on 2 October 2011

Still On top in October 2011 after approx 4 months, this Year! Can leakim971 catch up!

Experts Exchange (EE) is a membership-based online “ask an expert” site for computer and IT related questions that was founded in 1996. Experts Exchange (EE) enables people with technology problems to quickly and easily solve their problems by collaborating with experts from around the world. Experts Exchange (EE) is the #1 resource on the web for solving IT related problems, pop over and take a test drive, and meet the Experts.

Checkout How it Works.

The 1st Certified Virtualisation Genius at Experts Exchange

Sunday, October 2nd, 2011

On Tuesday, 27 September 2011, I became the 1st Certified Virtualisation Genius at Experts Exchange. Here is a copy of my certificate.

Certified Virtualisation Genius at Experts Exchange

Certified Virtualisation Genius at Experts Exchange

Experts Exchange (EE) is a membership-based online “ask an expert” site for computer and IT related questions that was founded in 1996. Experts Exchange (EE) enables people with technology problems to quickly and easily solve their problems by collaborating with experts from around the world. Experts Exchange (EE) is the #1 resource on the web for solving IT related problems, pop over and take a test drive, and meet the Experts.

Checkout How it Works.

Genius Badges before Virtualisation Badge

Genius Badges before Virtualisation Badge

Genius Badges after Virtualisation Badge

Genius Badges after Virtualisation Badge

Thank you if you donated in September 2011 your Donation has been forwarded to WaterAid

Saturday, October 1st, 2011

Thank you if you donated in the month of September 2011 your Donation has been forwarded to WaterAid.

Microsoft Windows stores Serial Numbers of USB Flash Drives used in the OS!

Friday, September 30th, 2011

I’ve recently been forensically examining a Microsoft Windows computer. [secret squirrel stuff – If I tell you …….]

The computing community grilled Apple recently about storing iPAD/iPhone GPS locations on the hardware, which was fixed by a security patch,

But I had no idea, that Microsoft Windows stores ALL the Serial Numbers of ALL the USB Flash Drives or USB External hard disks ever used, with first used date, and last used date on the computer in the Computers’ Registry, they are not encrypted.

So, with this information, it’s very easy to prove, a USB flash drives or USB External disk was used on your computer, for ill gotten gains etc

So if you work for a crime syndicate, destroy that USB flash drive or USB external disk!

Table of USB Devices extracted from Windows Registry

Table of USB Devices extracted from Windows Registry

I was surprised that the serial numbers do match, I checked my LaCie iamaKey, I did not realize, that USB flash drives have serial numbers!

Installing Microsoft Windows 8 on VMware ESXi 5.0 using Nested Hypervisors

Thursday, September 29th, 2011
Microsoft Windows 8 on VMware ESXi 5.0

Microsoft Windows 8 on VMware ESXi 5.0

Not being able to run Microsoft Windows 8 (Developers Preview) on ESXi 5.0 directly, I decide to try out the new Nested functions that exist within VMware ESXi 5.0. With VMware ESXi 5.0, it makes it easier to run Nested 64bit Operating Systems.

and all you need to do is the following:-

Add vhv.allow = “TRUE”‘  to /etc/vmware/config

Create a new virtual machine, I selected Microsoft Windows Server 2008 R2. Once you have created your new Virtual Machine, Power Down, and change the following Options.

Edit the Virtual Machine Properties, Select Options, General Options, and Change the Guest Operating System type to Other: – VMware ESXi 5.0.

Guest Operating System Version VMware ESXi 5.0

Guest Operating System Version VMware ESXi 5.0

This changes the OS, so you can run Nested Hypervisors, and makes the Intel VT or AMD-V functions available to your Guest OS.

Then I installed VMware Workstation 8.0 in the VM, and voila!

It’s a little cheat! But proves Nested Hypervisors works correctly in ESXi 5.0!

Red Admiral on Echinacea – late summer 2011

Tuesday, September 27th, 2011
Red Admiral, Vanessa atalanta on Echinacea purpurea

Red Admiral, Vanessa atalanta on Echinacea purpurea

Lindsey took this picture in the garden!

Andy at the Tate, St Ives – Martin Creed, Half the Air in a Given Space

Monday, September 26th, 2011
Andy at the Tate, St Ives

Andy at the Tate, St Ives

This was taken in July 2011, at the Tate Gate, St Ives, Cornwall.

This installation is by – Martin Creed, Half the Air in a Given Space, which sees the spectacular sea-facing galleries filled with hundreds of balloons!

Tweaking ESXi 5.0 – Adding un-supported hardware to VMware vSphere ESXi 5.0 – Adding a QLE-220 to ESXi 5.0

Tuesday, September 20th, 2011

A continuation of this article – Tweaking ESXi 4.1U1 – Adding un-supported hardware to VMware vSphere ESXi 4.1 U1 – Adding a QLE-220 to ESXi 4.1 U1.

No official support for the Qlogic QLE-220 in ESXi 5.0, vSphere GUI client before tweak

No official support for the Qlogic QLE-220 in ESXi 5.0, vSphere GUI client before tweak

Because I’m also now testing Production VMware vSphere 5.0 (ESXi 5.0), and also need to connect the ESXi 5.0 servers to the fibre channel SAN using the same Qlogic QLE-220 4GB fibre channel cards. These are the PCI-E cards that fit in the HP ProLiant MicroServer quite nicely. As these Qlogic cards were NOT supported in ESXi 4.1, it’s unlikely they are supported in ESXi 5.0, and they are NOT, and not included on the HCL (Hardware Compatibility List).

Again, trying to get ahead of the curve, it will not be long, before I’m asked the same question as before with ESXi 4.x.

“ESXi 5.0 does not “see my network interface card, or storage controller.”

“How do I add this mass storage controller, network interface card,  fibre channel HBA to ESXi?”

A.Andy’s Thoughts

It is my understanding, that rather than a single oem.tgz, which contains the simple.map Vendor and Device IDs of ESXi 4.x, the simple.map file has been broken down into likewise individual mapping files, /etc/vmware/driver.map.d reveals 60 individual map files which contain the Vendor Id and Device Ids similar to the original simple.map of ESXi 4.x.

ESXi 5.0  contents of /etc/vmware/driver.map.d

ESXi 5.0 contents of /etc/vmware/driver.map.d

The file I need to modify is the qla2xxx.map file, to add the Vendor ID and Device ID. I may also have to alter the pci.ids files as well, but it’s unlikely!

the console command lspci -v reveals the same vendor ID and device ID

console output of lspci -v on ESXi 5.0

console output of lspci -v on ESXi 5.0

When ESXi 5.0 boots up you can see the individual driver modules files being extracted from their tarbal archives and loaded into ramdrive memory. These tarballs contain the mapping PCI ID mapping file and also the drivers for the device. All that is required is to add your new qla2xxx.map file (modified mapping file) into the scsi-qla.v00 tarballed file.

B. Adding the device to the mapping file

I’ve completed this by, extracting the original contents, including sub directories, copying my new mapping file, and creating a new archive.

  1. cd tmp
  2. mkdir tweak
  3. cd tweak
  4. cp /bootbank/scsi-qla.v00 scsi-qla.tgz
  5. tar -xvf scsi-qla.tgz
  6. rm scsi-qla.tgz
  7. Update and tweak the qla2xxx.map file.
  8. Modifying the qla2xxx.map file to add additional Vendor and Device ID

    Modifying the qla2xxx.map file to add additional Vendor and Device ID

  9. tar -cvzf scsi-qla.tgz etc usr
  10. mv scsi-qla.tgz scsi-qla.v00
  11. cp scsi-qla.v00 /bootbank/scsi-qla.v00
  12. restart server.
Qlogic QLE-220 in ESXi 5.0, vSphere GUI client after tweak

Qlogic QLE-220 in ESXi 5.0, vSphere GUI client after tweak

Viola! An un-supported Qlogic QLE-220 added and working in ESXi 5.0.