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VDI / VCM with ESX 3.5 and VC 2.5
Posted by Duncan Epping in February 4th, 2008 | no comment
Published in Desktop
CDP, why?
Posted by Duncan Epping in January 31st, 2008 | 1 comment
Published in Server
That’s what I thought at first, why do I need CDP(Cisco Discovery Protocol)? Well yesterday CDP proved to be an excellent option for troubleshooting weird networking problems. One of my customers replaced a faulty NIC and accidentally switched two network cables. One of these cables was part of an etherchannel, this caused all kind of [...]
Rescan all vmhba’s at once with the esxcfg-rescan command
Posted by Duncan Epping in January 25th, 2008 | 5 comments
Published in Server
Using the console it’s very easy to rescan a specific vmhba which can be useful when you are troubleshooting. For lazy people like me it’s disturbing that you have to type the command twice if you want to rescan both HBA’s. Well, as of version 3.5 VMware introduced a new setting in Advanced configuration section [...]
Clone and roll out template fail with “failed to connect to host”
Posted by Duncan Epping in January 24th, 2008 | 35 comments
Published in Server
Recently I implemented ESX 3.5 with VirtualCenter 2.5. After I installed the ESX Hosts and the VirtualCenter server the customer told me that I had to change the ip-addresses of the service console. I removed the ESX hosts from the VirtualCenter server, removed the vswif of both hosts with “esxcfg-vswif -d” and created it again [...]
CPU utilization increasing after VMotion in a DRS enabled cluster
Posted by Duncan Epping in January 24th, 2008 | 1 comment
Published in Server
VMwarewolf already posted this fix on his blog but had to remove it… Now VMware added it to their knowledge base. Check out the original article because it may change in time. For the lazy people I included how to diagnose the problem and more…
Diagnose the problem:
Use the VI Client to log in to VirtualCenter [...]
New VCB features
Posted by Duncan Epping in January 15th, 2008 | no comment
Published in BC-DR
When exploring VCB 1.1 I noticed some new features. One of the most prominent is the option to run VCB from within a VM. I can hear most of you think what’s the point of that and how about that HBA / iSCSI connection you need. Well if it’s of any use I will [...]
Service Console redundancy
Posted by Duncan Epping in January 14th, 2008 | 19 comments
Published in Server
The last couple of weeks more blogs and topics appeared around the warning VirtualCenter gives when there’s no service console redundancy. Several people posted about a workaround to clear this warning. The workaround is very easy: temporarily assign an additional nic to the service console vSwitch and reconfigure your HA. Notice that I used ” [...]
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