On Tue, Nov 22, 2005 at 02:36:15PM -0600, Matthew S Elmore wrote: > Greetings misc@,
Yo. > > I am currently building a mail server and would like to utilize OpenBSD > with a SATA RAID setup. We need preferably a multi-channel controller, > to do two mirrored arrays (both 2x160GB). If we must, we can use two > single-channel controllers. There is some pretty solid support with ami(4) RAID controllers. Be careful to not buy one of those so called "host based RAID" controllers though. Those are basically special drivers and won't ever work on OpenBSD due to its closed nature. > > The ability to rebuild a damaged or corrupted array while leaving the > system up is imperative. Ok, so make sure you set the rebuild rate at something that doesn't cripple the server under load. This is controller and system specific so you need to play a little with this. > > Which hardware would you recommend for OpenBSD? (Or, less specifically, > which drives are most mature for RAID controllers on OpenBSD). What So you are contradicting yourself by saying SATA and "imperative" and more of that type of language. If you need something that requires performance and high uptimes you really want SCSI. If you just want something cheap where reliability and performance is not really an issue you can go for SATA. Choose wisely since you get what you pay for. > utilities will I use for rebuilding the array, or is this something that > must come from the manufacturer? OpenBSD comes with bioctl(8) to manage your ami(4) based cards (really LSI MegaRAID these days instead of AMI). Any good RAID card will autorebuild a failed array. > > Your input is most appreciated! > > Matt > /marco
