The Xen® hypervisor, the powerful open source industry standard for virtualization, offers a powerful, efficient, and secure feature set for virtualization of x86, x86_64, IA64, ARM, and other CPU architectures. It supports a wide range of guest operating systems including Windows®, Linux®, Solaris®, and various versions of the BSD operating systems
Author Archives: mea
Converting a virtual disk image: VDI or VMDK to an ISO you can distribute
Distributing an ISO as opposed to a VM image allows it to be installed on any virtualization platform, as well as on bare metal, with the added bonus of running live.
Converting a virtual disk image: VDI or VMDK to an ISO you can distribute | TurnKey Linux Blog.
Virtual Machine Manager
The “Virtual Machine Manager” application (virt-manager for short package name) is a desktop user interface for managing virtual machines. It presents a summary view of running domains, their live performance & resource utilization statistics. The detailed view graphs performance & utilization over time. Wizards enable the creation of new domains, and configuration & adjustment of a domain’s resource allocation & virtual hardware. An embedded VNC client viewer presents a full graphical console to the guest domain
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.
OpenXenManager
OpenXenManager is a graphical interface to manage XenServer / Xen Cloud Platform (XCP) hosts through the network. OpenXenManager is an open-source multiplatform clone of XenCenter (Citrix).
Via OpenXenManager | Download OpenXenManager software for free at SourceForge.net.
Citrix XenServer Downloads
Download Free XenServer
Enterprise-ready, cloud-proven server virtualization platform
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.
How to convert flat disk image to vmdk?
vmware – How to convert flat disk image to vmdk? – Stack Overflow.
apt-get qemu (installs QEMU on debian/ubuntu)
qemu-img convert imagefile.dd -O vmdk vmdkname.vmdk
I’m assuming a flat disk image is a dd-style image. The convert operation also handles numerous other formats.
VMX-file parameters
the shorter the better
Most of the times shorter vmx-files are better than long ones 😉
Don’t use parameters just because they were listed once in
a vmx-file created with vmxbuilder or easyvmx or Workstation.
These 3 tools usually write quite good vmx-files – anyway: homegrown is the best 😉
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.