I'm putting together my own external SCSI RAID and was wondering what I should do about a power supply. Most of the external cases I've seen have a power supply that's seperated from the drives, but not totally enclosed like in a Mac/PC. I've been planning on just using a mini or micro ATX power supply, but obviously I won't need the large connector that powers the motherboard.
The backplane I've got (using SCA2 drives) takes two standard hard drive power connections. I might be able to find a mini ATX that allows the motherboard power cable to be removed as on some of the Mac PS's. But I was just wondering if there was another option.
I haven't figured out what wattage i'm going to need yet but I'll probably just estimate and then go a bit beyond for future expansion.
I won't just be throwing this into a ATX case. I want to make something original that looks good and cools the drives properly. The backplane I've got can connect up to 6 drives and can be setup as 6x1, 3x2, or 2x3 (drives x channels). I want to do this right so that I can hold onto it for quite a while, just replacing the drives as SCA SCSI drives continue to fall in price.
My basic design idea is about the size of a shoebox. The backplane goes along the back side, and the case will sit horizontal rather than vertical. The drives will be laying on their sides and will be cooled by fans blowing air up from below. The whole thing will look somewhat like Apple's Cube (except I doubt it will be acylic and it won't be a cube) with air coming in from the bottom, passing over the drives and exiting from the top.
I'll post some diagrams later on. Advice on construction, materials, ect would be great!