On 26 February 2013 12:14, Samuel J. Greear <[email protected]> wrote: > On Tue, Feb 26, 2013 at 1:06 PM, Joel Nilsson <[email protected]> wrote: >> Hi, >> >> if I want to do soft RAID10 is vinum(8) the way to go? >> >> The main purpose is to crank up the I/O rate without loosing too much >> reliability. >> >> It is intended for my personal/private file server at home, so a temporary >> loss of availability is not an issue (for now, it may change). >> >> Regards, >> Joel > > There are various options for software raid in DragonFly but a > hardware raid controller is generally considered the most reliable > option. > > Typically though in DragonFly you would hammer mirror-stream between > disks for redundancy and utilize swapcache to acheive your throughput > needs. > > Sam
So, `hammer mirror-stream` is the recommended way for redundancy in place of software RAID, and where hardware RAID is not available? Would such a setup support reliable booting from either volume? Provided you have lots of RAM (e.g. 8GB or 16GB), is there a way to ensure that you aren't going to be doing any actual IO on the source volume when performing the mirroring? If you're dealing with regular platter-based HDDs, would you nonetheless configure the second HDD (which is the target of the `hammer mirror-stream`) as swapcache? Wouldn't it potentially make the performance much worse? C.
