Cisco
The Cisco ASA firewall can run as virtual host for multiple virtual ASA's known as contexts. We recently ran into an issue where a memory leak made one context inoperable. Rather than reload the entire ASA and take out the other contexts we wanted to only restart the
Infrastructure
Tips on tuning VMware ESXi for EqualLogic SANs. 1. Install Dell MEM 1. Download from here: https://eqlsupport.dell.com/support/download.aspx?id=1484 2. Important: Unzip the package and inside the package is another zip file. That's the file that should be uploaded to a datastore
Servers
We recently encountered an issue with VMware ESXi USB passthrough that is worth noting. On a Dell PowerEdge R and T series servers (T710, R710, R610, etc) you can opt to install ESXi on the embedded SD card. It works great and allows the OS disk to be completely separate
Virtualization
Here are the steps to convert a thick VMDK file to thin. Steps 2-4 are optional, but if you want to shrink it down as small as possible then don't skip them! 1. Evaluate how much space you have on the datastore. You will be creating 2 copies
Servers
Ten Reasons You Should Already Be Using Virtualization For Your Server Environment According to Intel: single most important issue in IT Virtualization is a relatively new technology, but it is not as new as one might think. VMware, one of the pioneers of virtualization, has been creating and selling virtualization
Infrastructure
To get the best performance out of VMware's iSCSI initiator it's a good idea to enable jumbo frames on the ESX hosts. First configure a new vSwitch dedicated to the iSCSI network and if you're doing this in the GUI delete the default port
Virtualization
Here's a tip if your ESX host freaks out and you happen to be storing a VMFS partition on the same volume as ESX: If an "upgrade" install doesn't fix the problem then do a clean install and on the page that shows how