Found this nice plugin : http://nickapedia.com/wp-vspherestats/
Installing is easy and works like a sharm!
Or check it out live at http://vworld.nl
Archive for the ‘VMware’ Category
Just installed vSphereStats for WordPress at vworld.nl
Saturday, July 24th, 2010SSL Certificates the cheap way
Friday, July 23rd, 2010I needed some SSL certs for my Exchange and other servers. I wanted to buy some certificates from an commercial supplier like godaddy.com or something like that. But this is how I’ve fixed the problem.
Go to CAcert.org (https://www.cacert.org/index.php) and register/create an account.
Create an certificate request on IIS or an server you wish to create an certificate and submit this on the site.
Only one downside, the root certificate isn’t standard know. You must manually import it, read the howto here :
http://www.cacert.org/index.php?id=3
Thanks for macmenco for the hint!
Unable to update to ESXi 4.1 using VC Client Update Manager – “Failed to read the upgrade package metadata.xml”
Friday, July 23rd, 2010I ran into some problems usingthe VC Client Update Manager. After checking the .ZIP update file it came with an error.
The solution, download the .ZIP upgrade file, extract it and copy it to your ESXi server using winscp or VC storage browse
Go to the directory where you placed the files and do the manual upgrade to ESXi 4.1 as follows :
Place your ESXi server into maintenance mode;
esxupdate update -m metadata.zip (after that restart your server and check the build level)
You’re al done!
How to enable SSH on ESXi
Friday, July 23rd, 2010I install my ESXi servers with a pre-compiled version with ESXi with SSH access already enabled. But for the people who don’t, this is how you enable (unsupported!) SSH access to ESXi.
Logon to the console (you don’t have SSH access, so this is the only option)
Press ALT-F1 and type unsupported (you don’t see what you type) and hit enter.
You will be asked for the root password. Now you can edit using VI (no, nano isn’t there!) the /etc/inetd.conf
Search for #ssh (2 lines) and remove the #. Save the file using :wq and restart the server.
You are al done!
Cannot create a quiesced snapshot because the create snapshot operation exceeded the time limit for holding off I/O in the frozen virtual machine.
Wednesday, July 21st, 2010I ran into a problem with one virtual machine, when creating a snapshot for backup (Veeam and/or VMware datarecovery) :
After some troubleshooting i found that stopping the following services did the job :
Microsoft Software Shadow Copy Provider” and “Volume Shadow Copy”
The specific server is an webserver so these VSS services are not that important for me. 
Changing the VLAN ID of a ESX Service Console from the Command Line
Friday, June 11th, 2010This is just a quick note to describe how you can easily change the vlan ID of the service console in ESX.
To remove the vlan id completely, just set it to 0 (in case you have set it by accident on an access port)
esxcfg-vswitch vSwitch0 -v 0 -p “Service Console”
To set a vlan id on the service console (in case you forgot to define this during the installation)
esxcfg-vswitch vSwitch0 -v X -p “Service Console” (enter the vlan number where X is)
Of course make sure to check which vSwitch the Service Console is on (and the name of the Service Console) with esxcfg-vswitch -l
Difference between WWNN and WWPN
Tuesday, June 8th, 2010I’ve got this question several times from customers, friends, co-workers etc. Suppose now it’s time to make a small blogpost of it. (Also handy for VCP/VCDX exams)
A WWPN (World Wide Port Name) is physically assigned to a part in a Fibre Channel device, such as a FC HBA or SAN. It is the equivalent of the MAC address in the Ethernet protocol as it is supposed to be a unique identifier in the netwok.
The WWN’s are administred by the IEEE like the MAC Address is. The first few octets are assigned to a manafacturer, the rest is arbitrary.
The WWNN (World Wide Node Name) is a World Wide Name assigned to a node in a Fibre Channel fabric. It is valid for the same WWNN to be seen on many different ports on the netwerk.
The WWNN can be regenerated, the WWPN not :
(Screendump of VM properties below)
More info in this (usefull) document : Brocade_NPIV_ESX3.5_WP
VMFS access is slow (unload VMFS-2 & NFS drivers)
Tuesday, June 8th, 2010When using several VMFS 3 datastores, there is no need to use the VMFS 2 driver. You can unload the driver with the following command :
vmkload_mod -u vmfs2
Also, if you are not using (or planning to use) NFS datastores, you can also unload the NFS driver with the following command :
vmkload_mod -u nfsclient
In my (growing) lab environment the performance improvement was considerably.
Use ONTAP 8.0.7 Mode Simulator on ESX
Sunday, June 6th, 2010I found here information about running ONTAP 8.0.7. on ESX. (mirror : Use Ontap807 on ESX)
Updated : VCDX Defense dates this year
Saturday, June 5th, 2010VCDX Defense
Defense interviews will be held during the following days:
- July 5-9, Melbourne, Australia (Application Deadline: May 18)
- August 23-27, San Francisco, CA (Application Deadline: June 21)
- October 11-15, Copenhagen, Denmark (Application Deadline: August 2)
- November 1-5, Cambridge, MA (Application Deadline: Aug 30)
Completed applications will be scheduled in the order recieved.
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