On Sat, Mar 06, 2010 at 03:05:46PM -0800, Mark Knecht wrote: > On Sat, Mar 6, 2010 at 2:33 PM, Greg Freemyer <greg.freemyer@xxxxxxxxx> wrote: > > You haven't said what kind of i/o rates you expect, nor how much > > storage you need. > > Good points. I guess I was assuming I'd want 1TB storage and I'd > buy 3/5/6 1TB drives to get it. Honestly I probably don't need > anything close to that. My weekly backups of stock data run about > 1GB to 1TB should hold me for quite awhile I think. Where are you sourcing the stock data? 1GB/week seems awful low. You must be getting top of book only? We get real-time full depth stock data. NYSE and Nasdaq data are each about 100 GB/month, compressed. Just something to keep in mind if you ever start working with full-depth feeds. Also: for backups, you might want to consider par2. You can use it to create a specified amount of parity data for each file or group of files. Useful in the case of media errors. -- To unsubscribe from this list: send the line "unsubscribe linux-raid" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
