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Sunday, 28 April 2013

vSphere 5.1 Client Install & Windows 8

Install requires .net 3.5 which Windows 8 doesn't seem to have. Easiest way I found to fix this was open an elevated permissions command prompt and run :

dism /online /enable-feature /featurename:NetFX3 /all /Source:d:\sources\sxs /LimitAccess

/Source: should reflect the Windows 8 DVD path.

Friday, 19 April 2013

Recovering Windows 7 'updates' Space

Redundant files left over from Windows updates can eat your space.  Not such a problem with the massive disks you get these days but every GB counts when your virtualising.

Running against my daily Windows 7 VM I recovered 2.5GB.

To clean these up run an elevated permissions command prompt :

dism /online /cleanup-image /spsuperseded /hidesp

Tuesday, 16 April 2013

Nested ESXi Install & Second VMKernel Communication Issues

Attempting to build myself a small lab using a MAC Mini.  Bigger post to follow on that.

If your running nested ESXi, multiple interfaces and multiple VMKernel vNICS on the second hypervisor layer then do yourself a favour and enable Promiscuous mode on the vSwitch.

The upstream switch only ever learns the first VMKernel MAC (ESXi uses the actual physical interface MAC) and not the subsequent vNIC interfaces so L3 comms will never work to the vNIC, even between devices on the same subnet/vlan.

This probably demands a picture, which it's not going to get right now but this post is about the same problem.