Replacing disks in RAID

[Marcin Zurakowski]

Hi,
 
I've got Redhat 6.1 with kernel 2.2.12 and raidtools-0.90.
 
I've made a raid array (raid-5) from 3 disks (/dev/hda1, /dev/hdb1,
/dev/hdc1)-no spare disks. If the one disk (for expample /dev/hdb1)
fail everything will be ok. Then I want to replace this bad disk
with new one. What should I do to make this new disk work with
array (without erasing data)... I mean, attach this disk to array, to have
raid in state like in begining.
 

Marcin Zurakowski ( [EMAIL PROTECTED] )