Attached is an EXCEL spreadsheet that contains information on NAS/Desktop disk drives providing a lot of information to help you choose the best disk drive for your RAID configuration.



Various tables are in the worksheet Tables. This allows you to modify the specifications to match what you are looking for. Below are what a few of the tables in graphical form.









The prices come primarily from www.newegg.com and a few from www.ebay.com. They are valid at the time I entered them but are subject to change -- in some cases I have seen them change fairly quickly. Use the prices listed as a rough rule of thumb. Prices outside of the USA can vary widely, so be prepared to do a little homework, if need be.

• The fact and figures come from the manufacturers website.
• In cases where there is a high and low value listed, at the manufacturers site, I have tried to us the worst case value.
• If a cell is empty, that means I could not find the value and left it blank. If you can find the value from a manufactures documentation/spec sheet, please send me a pointer and I will update it.
• The yearly energy usage (power consumption) is not all that much different between a 5x00 RPM drive and 7200 RPM drive. The biggest difference between the two is heat generated. If you have a choice between 5x00 or 7200, I would go for 7200 RPM drives.
• Using larger disk drives is better for power consumption per TB of disk space. With a large disk drive, you can get the energy price lower per dollar per TB of disk space per year.
• The performance comparison is fairly course (i.e. RPM only). It should include other items such as, seek time to be more realistic. Maybe in the future, but don't hold your breath.

I will update this file every now and then. Hopefully at least once a month.