We are looking to purchase some drives for a Coraid SR1521 storage appliance. Coraid maintain a list of compatible drives on their site, so it would be wise for us to stick to drives that have been tested without problems.
Hard drives comparison
- All disks shown are 1TB SATA drives.
- MTBF is the Mean Time Between Failures
- AFR is the Annualised Failure Rate. This is the % of the population of these drives that are likely to fail in an average year. I’ve calculated this myself based on 24/7 usage (e.g 8760 / MTBF * 100).
|Manufacturer||Model||Type||Part Number||MTBF||AFR||Price (inc VAT)|
|Samsung||Spinpoint F1 *||Desktop||HD103UJ||600,000||1.46%||£89.85|
* The Samung Spinpoint F1 has not been tested on a Coraid device yet.
Tom’s hardware have a comparison of SATA disk transfer rates.
X-bit labs have an in-depth comparison on 1TB disks.
Samsung make an interesting point in their spintpoint F1 announcement pdf. Although buying a 1TB drive may cost more per Gigabyte than 2 x 500GB drives, the 2 drive solution is twice as likely to fail per Gigabyte. However, it will generally be slower as you have less spindles.