RAID mirror really worked

[Wojciech Puchar]

>
> I've got a Promise TX2300 SATA Raid controller that I use on my FreeBSD 
> fileserver at home.  It uses ataraid.  I've set up a simple two-drive mirror. 
> One of the drives has been sending me intermittent failure messages in the 
> nightly emails for nearly a year - no more than one or two a month.  Last 
> night it finally croaked.  The mirror broke, but it went into "degraded" mode 
> and kept right on chugging along with no service interruption.
> Today I took down the system, replaced the bad drive, rebuilt the array using 
> Promise's BIOS tools (since that's how I built it originally), and everything 
> is back to normal.

gmirror works too very good without any hardware :)