Musings of an everyday geek

I am in the process of setting up a box for someone and I thought I’d document the software RAID portion of it a little bit, in case it is helpful to anyone else.

I’m a bit of a command line junkie so it should come as no surprise then that I prefer to setup my software RAID sets using the command line tools available. The system in question this time is a newly installed CentOS 5 box. In this article I’ll concentrate on creating a mirrored set.

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I haven’t really discussed my gaming habit for awhile so for those interested here is an update.

The holiday season added a number of games to our collection. I can no longer call it “my” collection as now there is a game that was purchased specifically for my wife. It is officially our game collection. Anyway, I’ve been filling my time by switching off between Metroid Prime 3 and Super Mario Galaxy. Both are excellent games.

When I’m not playing Wii I’m probably playing DS. I recently finished up The Legend of Zelda: Phantom Hourglass and picked up Mario Kart DS. Mario Kart DS is an older game but is highly rated.

After loosing a hard drive I thought it was time to look into upgrading a little bit. At home I run two systems 24×7 to take care of a couple of things. One provides me with a place to do the little bit of freelance work that I do. It’s an old Dell server running Fedora Core 6 on a single 40GB drive. The other one runs Ubuntu and is my MythTV/file server and is the system that lost the drive.

As I explained in a previous post, the plan is to replace the four 80GB drives with a pair if mirrored 500GB drives. I’d also like to cut back on the number of running systems in the house so this box will also either host my dev work directly on Fedora 8 or, by using XEN, run another instance of Fedora 8. I’m hoping that the new setup will still provide me with the network speeds I’m used to from the Mac Mini (~42MB/s) and provide the services I’ve grown used to while using less power. I usually look down upon the idea of spending money to save money but with one less machine running and three fewer drives spinning I should come out ahead by a good margin.

Late last week I found out that I had lost a drive in my striped RAID array. I had four 80GB drives setup as a striped set for speed. The array stored things like ripped DVDs, music, downloads and most importantly any video that I was editing on my Mac. I knew the risks of going RAID0 so I had backups of my most important stuff but it’s still a loss in time all the same.

I was originally using the four drives in a RAID5 set but performance was too slow for editing when combined with gigabit speeds. I also needed the space at the time. To replace the drive, I actually decided to replace all of the hardware as well. I’ll be moving from a P4 3.0Ghz to a Core 2 Duo 2.2Ghz with 800Mhz front side bus. There are quicker options out there but this will certainly be an upgrade from what I have, while using less power most likely.

For drives I’ve ordered a pair of Samsung 500GB drives which I’ll mirror. I didn’t really feel shorted on space before so 500GB will still feel like an upgrade and I’ll be able to take advantage of mirroring to help protect the data to some extent.