Mount dd images in Windows

Tools for OSForensics – OSFMount – Mount dd images in Windows.

OSFMount allows you to mount local disk image files (bit-for-bit copies of a disk partition) in Windows with a drive letter. You can then analyze the disk image file with PassMark OSForensics™ by using the mounted volume’s drive letter. By default, the image files are mounted as read only so that the original image files are not altered.

How To Build A Low Cost SAN

In today’s world there is a obvious need of information sharing in every department and network storage can help us to achieve this most growing challenge. Here in this article we are focusing our concentration to make a San which has following features:

  • Low cost and easily affordable
  • Ensured Scalability
  • High Reliability
  • Easily Manageable
  • High Performance
  • Ensured Security
  • High availability

via How To Build A Low Cost SAN | HowtoForge – Linux Howtos and Tutorials.

VMWare memory allocation weirdness

On a system with a lower amount of RAM you may find that ESXi allocates too much to run the vmkernel and system services not leaving sufficient memory for running VMs. In the below example, the host has 3 GB of memory. ESXi is showing about 2600 MB available for virtual machines. But an important number for virtual machines is the memory capacity shown on the Resource Allocation in the 2nd image below. This shows that my VMs have a total capacity of just over 1400 MB for VM memory overhead. A chart of memory overhead per vCPU / VM memory is shown below. VM memory overhead includes space for the VM frame buffer and virtualization data structures like shadow page tables. Once my running VMs have exhausted the 1400 MB of total capacity, I will not be able to start additional VMs even though ESXi may have plenty of free memory.

via VMWare memory allocation weirdness

PC market downshifting, says Gartner

The big news in Gartner’s report is that Dell passed Acer to take over the second place position in the global PC market behind perennial leader Hewlett-Packard.

It’s the first time Dell has held the second-place spot in Gartner’s rankings since the fourth quarter of 2008. Gartner credits Dell’s investment in enterprise PC feature upgrades for its improvement.

via PC market downshifting, says Gartner – Computerworld.

Converting VMWare Workstation images to VMWare ESXi 3.5

Use SCP to copy your Workstation files over to the ESX server. The path is /vmfs/volumes/YourDataStore. Next, ssh into your ESX server and run the following command:

vmkfstools -i sourcefile.vmdk /vmfs/vmfsname/destinationfile.vmdk

Once that process is complete you can point ESX at that file and start it up. Make sure you delete the source files so you aren’t wasting space on the ESX server.

via Righteous Hack » Converting VMWare Workstation images to VMWare ESXi 3.5.

This worked.  The VMware converter failed on two VMs made with Workstation but copying them over and using this command does the trick.  Problem solved! (I hope)

Converter completely failed on Windows 7 and apparently there’s a hack where the type of OS needs to be changed in Workstation settings for the VM.   My PBX in a flash vm wouldn’t boot from its hd after conversion because the converter lost its partition.  I confirmed this by booting vm into knoppix and checking the partitions.  IMHO, converter creates more work than just copying the vm manually.  I fixed my piaf vm by manually copying the .vmdk file over and using the command above.  Will do more experiments later.