VMware Myths Busted/Confirmed

Here is a fun one I came across.  This slide deck by Eric Sloof and Mattias Sundling details VMware myths and either busts or confirms the myth.  The following VMware myths are tackled in this article/presentation:

• VMware HA works out-of-the-box - Busted.  There are several things the admin will need to do to get HA working in a vSphere environment.
• VMware snapshots impacts performance - Confirmed.  Snapshots still have impact on performance.
• Disk provisioning type doesn’t affect performance - Busted. Thin and Lazy Zeroed disks have the same speed. Once allocated, these disks are as fast as Zeroed disks. Thick Provision Eager Zeroed offer best performance from first write on.
• Always use VMware tools to sync the time in your VM - Busted.  Use W32Time or NTP.  Do not use VMware Tools period sync.

For more explanation these conclusions and to download the PowerPoint deck, continue reading at the source...

Tags: VMware, Performance