Category Archives: VMWare

To SSD or not to SSD?

3 June, 2013

A very good article by Duncan Epping on his blog site hughlighting a common issue with the all the hype about SSD and flash been the utopia answer to Data Centre IO performance problems. Not what is all seams to be…..

http://www.yellow-bricks.com/2013/06/03/evaluating-ssds-in-virtualized-datacenters-by-irfan-ahmad/

VMware KB: Unmounting a LUN or Detaching a Datastore/Storage Device from multiple ESXi 5.x hosts

29 May, 2013

VMware KB: Unmounting a LUN or Detaching a Datastore/Storage Device from multiple ESXi 5.x hosts.

VMware: Add PortGroup to all hosts in cluster with PowerCLI | VMpros

22 April, 2013

Very usefull and time saving script – found over on blog site VMPROS.

Many Thanks.

Get-Cluster “My Cluster” | Get-VMHost | Get-VirtualSwitch -Name “vSwitch0″ | New-VirtualPortGroup -Name “MyPortGroupName” -VLanId 1234

via VMware: Add PortGroup to all hosts in cluster with PowerCLI | VMpros.

Introducing the vCenter Certificate Automation Tool 1.0 | VMware Support Insider – VMware Blogs

5 April, 2013

New Tool to automate the installation of custom certificates – another one for me to test on Monday! 🙂

This will be very handy with my previous post.

Introducing the vCenter Certificate Automation Tool 1.0 | VMware Support Insider – VMware Blogs.

Powershell – Generate Microsoft CA signed SSL certificates with vSphere 5.1 « DefinIT

5 April, 2013

Excellent blog/guide on to automate the certificates needed for vSphere 5.1

Note not tried myself yet – that Mondays Job! Will update post on my findings…..

Powershell – Generate Microsoft CA signed SSL certificates with vSphere 5.1 « DefinIT.

Update (12/03/2013): Now used this script. Works very well. Unfortunately the vmware tool to automate the installation of the certificates only works with the windows version of vcenter not the appliance.

VMware KB: Forcing a link state up or down for a vmnic interface on ESXi 5.x

12 February, 2013

Forcing a link state up or down for a vmnic interface on ESXi 5.x

VMware KB: Forcing a link state up or down for a vmnic interface on ESXi 5.x.

Used this to help work out the physical server’s NIC interfaces had been cabled up to the network switch correctly.

Luckily, the servers DRAC Remote access was working! So via the remote console connection, enabling local support access, downing the NIC and watching the Switch admin interface to trace which port changed. Easy! once I found the commands to down/up nics 🙂

BTW: Problem was VLAN was not assigned to the remote end of the switches uplink trunk.