Realtime Disk mirroring software

Can anyone recomment a realtime disk mirroring software they use in the case of primary hard drive failure.I'm looking to create a clone of my primary drive and store it in as the secondary,but I'll be updating files hourly and want the secondary to mirror exactly all changes in realtime.In the case of failure all changes will be refelcted on my secondary.

You probably want a RAID 1 (disk mirroring) solution if you want realtime mirroring.

Most good SATA controller chipsets have RAID1 built in. The problem with mirroring (real time) is that you are more lightly to do a FUBAR than have a disk fail. Might want to enable shadow copy as well (if your OS supports it) http://en.wikipedia.org/wiki/Shadow_Copy

Towger