RTFM Education – Virtualization, VMware, Citrix:

October, 2005


October 14, 2005  11:38 AM

Re-scan SAN Script

Michelle Laverick Michelle Laverick Profile: Michelle Laverick

Something I have known about for a while – but only recently added to my free guides is the script cos-rescan.sh. Some people prefer to use the script to rescan as SAN than the MUI or vmkfstools -s. Apparently, this script does a better job of making ESX aware of new LUN’s presented to it...

October 11, 2005  1:38 AM

VMware KB Articles of the Week

Michelle Laverick Michelle Laverick Profile: Michelle Laverick

This one is interesting – something I have known about for a while. Contrary to popular experience and belief, Gigabit NIC’s are BEST set to auto-negotiate. Whereas 100MG are best set to a fixed speed & duplex...


October 10, 2005  12:40 PM

Onix – High Availability Package for VMware ESX (Beta)

Michelle Laverick Michelle Laverick Profile: Michelle Laverick

It is a High Availability package for VMware ESX 2.x. It delivers an environment where if one ESX host is dies, another ESX member will Take-over and Power-on all VM in 3 minutes. It detects the heartbeat between 2 ESX member and use ESX functions to control vm...


October 4, 2005  5:48 AM

The vmstat performance tool

Michelle Laverick Michelle Laverick Profile: Michelle Laverick

I’ve know about this tool for a while. What I didn’t know was that it can be used to create dynamic reports about processes, memory, paging, block IO, traps, and cpu activity. The first report produced gives averages since the last reboot.  Additional reports give information on a sampling of...


October 3, 2005  1:07 AM

Using DevCon to Remove Stale/Phantom Devices for a Virtual Machine after P2V process

Michelle Laverick Michelle Laverick Profile: Michelle Laverick

It came to my attention that there is a little CLI to Device Manager which can be used to automate the removal of the fore-mentioned stale/hardware. For the last couple of weeks I’ve been working on a script to do this. The scripts are being tested by Ken and Boydd of the P2V forum. As soon as I...


October 3, 2005  1:06 AM

Showing Stale/Phantom Devices in Device Manager

Michelle Laverick Michelle Laverick Profile: Michelle Laverick

As you may know after completing a P2V process you have to remove “stale hardware” or what Microsoft calls “Phantom Hardware”. This is the hardware from the original physical machine which is no longer present. There is a variable you can parse to Microsoft’s Device Manager to force these...


October 3, 2005  1:04 AM

Old Bits of the MUI might still be useful

Michelle Laverick Michelle Laverick Profile: Michelle Laverick

You may not know this but the MUI you see on ESX2.x has a very different layout to the MUI of 1.0. However, the “old” MUI is still available – and there is a part of it – The Hardware Status Page which you still might find useful… If you type: 


October 3, 2005  1:03 AM

What is the latest version of ESX/vCenter/P2V?

Michelle Laverick Michelle Laverick Profile: Michelle Laverick

Whenever someone has a problem which posted on the forum, often the first response is “what is your hardware configuration and what versions of VMware software are you using”. I am not a customer of VMware. All I have ever bought from VMware is workstation. The rest of the software I use in an...


October 2, 2005  12:59 PM

Dual-Core Support and Licensing

Michelle Laverick Michelle Laverick Profile: Michelle Laverick

As most of you will know by now ESX 2.5.2 has been released and it support dual-core processors – although it has to admit the list of certified dual-core servers is still very limited. Anyway, people frequently ask questions about the licensing costs associated with dual-core. To answer this...


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