Hotswapping SATA question

[Konstantin Svist]

On 11/10/2009 09:42 AM, DJ Delorie wrote:
> I just hot swapped all (including boot and swap!) the drives out of my
> F10 server for an upgrade.  I used the raid tools to cleanly fail and
> remove the drive, then just pulled them out.  The syslog showed them
> hardware-failing.  Then I plugged the new ones in.  The syslog showed
> them being detected.  fdisk, raid add, done!
>
> This was with the sata_mv driver, rocketraid 1820a card.
>
>    

What are the raid tools? And if there isn't a man page, how do you use them?