Virtualization: Blue Gears

Get deep and hands-on with virtualization and cloud technologies.

by Edward Haletky

Edward L. Haletky is an Analyst for The Virtualization Practice and owns AstroArch Consulting, Inc., providing virtualization, security, and network consulting and development . Edward graduated from Purdue University in 1988 with a degree in Aeronautical and Astronautical Engineering. Since then, he has worked with programming graphics and other lower-level libraries on various UNIX platforms. Edward is VMware vExpert, a Guru and moderator for the VMware Discussion Forums providing answers to security and configuration questions. He is the author of multiple books on Virtualization published by Prentice Hall.

VMware HA failed with error....

Posted Nov 05, 2008 - 11:49 am

How to fix the cryptic VMware HA failed with error messages. This is a caustic error that actually has no real meaning other than to say VMware HA could not start, but not actually why!
Virtualization, VMware, VMware HA
SVMotion Usage and Trials

Posted Oct 28, 2008 - 01:58 pm

Storage VMotion is a great tool to use, so here is how to do it, and what to watch out about.
Virtualization, migration, SAN
Understanding VMware EVC

Posted Oct 17, 2008 - 11:03 am

Many people are confused about VMware EVC and how to configure this on their systems. When most people go to configure EVC they attempt to turn it on and get this hardware does not support EVC. Which is untrue for 98% of the attempts. There is more to enabling EVC than many realize.
Virtualization, EVC VMware Virtualization VMotion
VMware HA Fixed for SMB 2 node clusters

Posted Oct 05, 2008 - 12:19 pm

VMware HA was busted when VMware ESX 3.5 Update 2 was applied. VMware HA would fail to fire when a node was down, fail to evacuate VMs when entering maintenance mode, and fail to start VMs, with a not enough resources error, if the second node was down. This all applied to the SMB two node cluster world. With VMware Virtual Center 2.5.0 Update 3 and the 10/3/08 patches for ESX this is now fixed.
Virtualization, HA DRS, patch
VMworld and Forensics

Posted Sep 23, 2008 - 11:29 am

In discussions with backup companies about digital forensics I discovered some useful items. Specifically that full VMDK backups may be forensically sound and that there is a way to dump the memory of a VM before you kill it like pulling the plug.
Virtualization, Forensics, virtualization
3 Days at VMworld

Posted Sep 18, 2008 - 01:51 pm

3 Days of VMworld has left me exhausted and stuffed with new ideas, concepts, and tools!
Virtualization, VMware VMworld
Preparing for VMworld

Posted Sep 11, 2008 - 08:18 am

First time to VMworld? This show is about networking and it will be an exhausting 3 days. Here is how to cope.
Virtualization, VMware, VMworld
Allowing VMware ESX Private Virtual Networks to Migrate

Posted Aug 30, 2008 - 06:22 pm

When you use a virtual firewall, it is with trepidation as the VMs protected by the virtual firewall may live only on a private virtual switch within a VMware ESX server. This leads to the inability to vMotion, or migrate the running VMs to other hosts without first powering them down. This is not very useful, but there is another VMware Virtual Center setting that could help.
Virtualization, VMware VirtualCenter vMotion
Booting VMware VirtualCenter while AD is unavailable

Posted Aug 24, 2008 - 03:48 pm

Sometimes there is a chicken and the egg situation where you need VMware VirtualCenter before you can boot your Active Directory server virtual machine.
Virtualization, VC AD VMware VirtualCenter
Even More Thoughts on Forensics

Posted Aug 18, 2008 - 07:44 am

Acquiring virtual machines can be difficult if the VM resides upon a virtual machine file system (VMFS). Mainly because nothing but ESX understands a VMFS. Given this how do you acquire the appropriate files for forensic analysis in a forensically sound way?
Virtualization, Virtuaization Forensics Security

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IPv6 Month

BY THE NUMBERS: IPv6: The big switch

ANALYSIS: Recent signals point to escalating jitters for IPv4 market

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