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Archive for August 2013

VirtualBox and resizing (compacting) the VDI disk

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My installation of Ubuntu 10.04 made use of a dynamic disk. Thus the VDI file on disk kept on growing as I was using it. After a while the VDI disk grew from 38GB to 78GB. I searched around and the easiest option was to use CloneVDI (a Windows program) which clones a VDI file and optionally compacts it as well. I selected the option to keep the UUID the same and simply moved the old file out of the way, dropped the new file (now 38GB in size again) into the same place with the same name of the previous old VDI file and started up the Guest VM.


PS. When installing the AllMyApps version of CloneVDI my instance of AVG Anti-virus kept on saying there is a trojan file, which I allowed it to remove (move into the Vault) – however – there might be other downloads out there which does not force you to go through AllMyApps.


Written by Rudi Engelbrecht

August 29, 2013 at 4:59 am

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VMware vSphere Client

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For those of you who want to download the VMware vSphere Client without navigating to the VMware website – go to this webpage… Chris Blogspot

Written by Rudi Engelbrecht

August 27, 2013 at 4:06 am

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Recent successes with Drobo FS and Mac OS X

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I purchased a Drobo FS in July 2011 with the intention of using it as a big NAS drive. My first attempts were not that successful.

The throughput speed was extremely slow. About 500KB/s when writing to it. Some posts on the Internet suggested this was due to Mac OS X, AFP and Drobo FS firmware. Over time I managed to find a partial solution by connecting it directly into a Mac (not accessing it via a shared router). Sometimes the speed would be up to 30MB/s when writing.

I decided to investigate this again and stumbled on Jumbo Packets – MTU of 9000. So I configured the Drobo FS with a MTU of 9000 and my Gigabit Ethernet on my Apple Thunderbolt Display with a MTU of 9000. My MacBook Pro is connected to the Apple Thunderbolt Display and this means I get the following speeds:
Writing: 30MB/s to 40MB/s
Reading: Up to 95MB/s

So I am much happier now – My MacBook Pro has access to a big disk and I am busy cleaning out all the backups and duplicate copies of files.

Written by Rudi Engelbrecht

August 23, 2013 at 12:50 am