VMware Tools for Linux

VMware Tools for Linux comes in the form of two available packages: The RPM Installer (has an .RPM file extension) and the TAR Installer (has a .tar.gz extension). Some will argue that the RPM installer is easier to use; however, not all Linux distros can take advantage of the RPM installer.

http://kb.vmware.com/kb/1018414
See also: http://bit.ly/9BKczp
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ESX file info

Find out Size, Used, Available, and %Used of your ESX file system (including VM datastores) with the following command (-h displays more human friendly information):

vdf -h

In ESX, the command df -h provides similar output but omits datastore information in the results, hence only local Service Console storage information is displayed.

In ESXi, df -h displays datastore utilization.
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Recent vCenter Server builds

Recent vCenter Server builds (English) & release dates
vCenter 4.1, 7/13/10, Build 259021
vCenter 4.0 u2, 6/9/10, Build 264050
vCenter 4.0 u1, 11/19/09, Build 208167
vCenter 4.0, 5/21/09, Build 162902
vCenter 2.5 u6, 1/29/10, Build 227666
vCenter 2.5 u5, 7/10/09, Build 174768
vCenter 2.5 u4, 2/23/09, Build 147633
vCenter 2.5 u3, 10/3/08, Build 119598
vCenter 2.5 u2, 7/25/08, Build 104263
http://bit.ly/aK8zQ
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Disable the ESX firewall

*Temporarily disable the ESX firewall with service firewall stop or the following commands:
-esxcfg-firewall -allowIncoming
-esxcfg-firewall -allowOutgoing
*Permanently disable the firewall with chmod 644 /etc/init.d/firewall
(re-enable with chmod 744)
*Enable the ESX firewall with the following commands:
-service firewall start (if it was stopped)
-esxcfg-firewall -blockIncoming
-esxcfg-firewall -blockOutgoing
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Troubleshoot a vSphere cluster

To troubleshoot a vSphere cluster showing Noncompliant on the Profile Compliance tab, check the following:

FT logging NIC speed is at least 1000 Mbps
At least one shared datastore exists.
FT logging is enabled
vMotion NIC speed is at least 1000 Mbps
All the hosts in the cluster have the same build for Fault Tolerance (pre 4.1)
The host hardware supports Fault Tolerance
vMotion is enabled

http://kb.vmware.com/kb/1017471
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New in VMware vSphere 4.1

What's New in VMware vSphere 4.1

Storage I/O Control - provides QoS capabilities for storage I/O in the form of I/O shares & limits that are enforced across all virtual machines accessing a datastore, regardless of the host on which they are running. Using SIOC, vSphere administrators can ensure that the most important virtual machines get adequate I/O resources even in times of congestion.

http://bit.ly/d16N7f
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VMware vSphere 4.1

What's New in VMware vSphere 4.1

vMotion Enhancements significantly reduce host evacuation time, with support for more simultaneous VM migrations and faster individual VM migrations. The result is a performance improvement of up to 8x for an individual VM migration, and support for 4 to 8 simultaneous vMotion migrations per host, depending on the vMotion network adapter (1GbE or 10GbE respectively).

http://bit.ly/9q9HW8
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