MySQL best practices on raid

By , November 25, 2012 4:58 AM

MySQL best practices on raid
Sounds like the write policy on your RAID controller is set to “Write Through” instead of “Write Back”. If your RAID controller has a battery and RAM you should really use write back and turn Mysql sync_binlog back to 1. If your controller doesn’t have a battery then using Write Back is pretty risk. Good luck.

ESX kills my USB

By , November 19, 2012 10:48 PM

I recently had a number of vSphere ESX4i  USB Key installs following my article on putting vSphere ESX4i on a USB key / Pen Drive. I needed to format a couple for general windows usage, only to find that the ESX4i image creates a number of partitions on the USB Key. Unfortunately Windows does not appear to support the removal of partitions on removable devices so when I was trying to format a 2GB USB stick I was able to format a 110MB partition and that was it. I was a bit stuck on the best way to rectify the issue and wasn’t finding much to help out on the web.

That’s when I stumbled upon the HP USB Storage Format Tool,  a great little tool that works with a wide range of USB sticks and not just HP ones.  It allowed me to wipe the USB key as a single entity and didn’t care about the partitioning, returning my USB Key to a useable state within windows.



vCenter Applicance Password change

By , November 7, 2012 1:26 PM

default password is
to change the password login through CLI and type passwd
and change the password
this takes care of that :)


By , November 3, 2012 7:40 PM

install Proxmox,
ensure to set machine name correctly
consider .local or .WORKGROUP

Connect to the Proxmox VE web interface

Connect to the admin web interface (https://youripaddress:8006) and configure the vmbr0 and review all other settings, finally reboot to check if everything is running as expected.



remember to consider

Optional: Developer Workstations with Proxmox VE and X11

Proxmox VE is primarily used as virtualization platform with NO additional software installed. In some case it makes sense to have a full desktop running on Proxmox VE, for example for developers using Proxmox VE as their primary workstation/desktop.

For example, just install lxde desktop:

aptitude install lxde libcurl3

Make sure network-manager is not used, else pve-cluster will not start

aptitude purge network-manager

To get a modern browser, Google Chrome is a good idea – download the 64-bit Chrome from Google, also install Oracle (Sun) Java, see Java_Console_(Ubuntu)


you should be able to select LXDE from your loginmanager, or if you are dropped at a shell, type “startlxde”.

Not sure if what follows is the best way, but it works for me on my desktop PC. I boot into runlevel 3, then run startx to initiate the X session. In order to start LXDE, I grabbed the .Xclients-default file shown below from an installation with multiple desktops, and set it to start LXDE


By , November 1, 2012 9:30 PM

open console
VM Guest Install VMware Tools

mount /dev/cdrom /media

cd ..
cd tmp

ll /media/
ls -l

tar zxvf /media/VM {tab}
cd vmw{tab}

unmount /media/


Thomas Challenger Thomas Challenger