New ESX builds

When deploying new ESX builds, save a lot of time by deploying from the newest build version of ESX available & patch from there. Avoid using VUM to remediate across major updates because it takes an extraordinarily long time. For example, remediating Update 3 on an ESX 3.5.0 ESX host takes 1.5 hours on IBM x3850 hardware (including reboots).

This doesn't apply to ESXi which remediates via a single firmware update.
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Status of all daemons/services

Check the status of all daemons/services in the ESX Service Console with the following command:

service --status-all
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Memory Compression

Memory Compression was introduced in vSphere 4.1. Utilization of compression falls between Ballooning & VMkernel Swap. Pages which would have been swapped out are instead compressed & stored in a compression cache (10% of VM memory) located in the main memory. Access to the page only causes a page decompression which can be an order of magnitude faster than the disk access. This is cool technology!

http://bit.ly/dvGHsp
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Timekeeping articles

A collection of timekeeping articles from VMware:

http://blogs.vmware.com/kb/2009/02/new-timekeeping-articles.html
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Protect VM data

During the installation of ESX, it is extremely important to protect VM data stored on existing volumes. Early versions of ESX would actually destroy LUN data which it discovered during installation. Dominic Rivera outlines several options to protect data, a few of which are automated for unattended installs. Follow the link below and check it out:

http://vmprofessional.com/2009/06/protecting-your-san-luns-during.html
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Licensing In a Virtual Environment

Microsoft Windows Licensing In a Virtual Environment

Windows licenses are tied to physical host hardware, not the VM. This applies to any hypervisor.
-A Windows 2008 Datacenter Edition license entitles an unlimited number of Windows VMs on the host.
-A Windows 2008 Enterprise Edition license entitles up to 4 Windows VMs on the host.
-A Windows 2008 Standard Edition license entitles up to 1 Windows VM on the host.
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@VMwareKB on Twitter

Be the first to see new and updated VMware KB articles by following @VMwareKB on Twitter and subscribing to the following RSS feed:

http://feeds2.feedburner.com/VMwareKnowledgebaseWeeklyDigest

Or visit the VMware Weekly KB Digest with your browser at:
http://blogs.vmware.com/kbdigest/
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