Technology

Transfer OpenBSD from one disk to another

       364 words, 2 minutes

For some reason, I need to switch my main (and only) disk running OpenBSD. As it is a production machine, I want to do it fast and painless. The system will go from the internal SSD disk to an external USB FlashVoyagerGT stick. Yeah, quite weird, but this is temporary :) Anyway, here are the directions.

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Quick speed test on ICYBOX IB-RD2262 USEb

       496 words, 3 minutes

As you may have noticed, I have installed a ICYBOX IB-RD2262 USEb on my MacBook Pro . It contains two 500GB SATA disks. You can either use the “RAID Master” provided tools to create the RAID system or use the Mac OS X native RAID system. The main difference is that, using RAID Master, you’ll only see the rendered RAID disk in “Disk Util” ; whereas you will see both disks and the RAID system if you use the standard OS X configuration. I wanted to check if there were any performance difference between native OS X configuration and RAID0/SPAN using RAID Master. Maybe using RAID Master, you benefit some hardware RAID system…

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Use an HSDPA 3G USB adapter with the Asus Transformer TF101

       823 words, 4 minutes

My Asus Eee Pad Transformer TF101 is quite nice to take on a ride. The only issue is that when there’s no WiFi around, there’s no Internet at all. I used to have a Novatel MiFi 2352 3G hotspot but it died. All I have left is a data-only SIM card and an Huawei E220 USB modem. By default, even with the dock keyboard, plugin the HSDPA USB adapter into the Transformer won’t lead far. But since I can root the Pad and install an alternate ROM, there are every likelihood that I can manage to access Internet via the 3G modem.

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Improve Synology DS409slim shell using ipkg

       400 words, 2 minutes

I own a Synology DS409slim on which I have enabled SSH. The primary idea was just to have a look behind the hoods. This is quite simple: browse to the configuration panel, select the terminal services section and active the SSH daemon.

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Windows Server on virtualization infrastructure cheat sheet

       1589 words, 8 minutes

Once upon a time, the way to decide which Microsoft Windows Server license to get was only a matter of checking the servers number, a bit of their configuration and features you wanted to get. Basically, the Standard Edition was good for anything that had less than 32GB of RAM and/or wasn’t used in clustered configuration ; else you would require the Enterprise Edition. There were also options for Web, Datacenter, Storage Edition but I never had to look at those. Virtualization, Cloud computing and IaaS have turned servers into instances with virtual resources which made those licenses quite inapplicable ; especially OEM license and CPU limitations. Here’s the way I understood the Microsoft documentation. It may enable you to understand and decide which licenses to use in your particular case. I’m writing it with VMware vSphere implementation in mind, but it should apply to apply virtualization technology.

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