RAID is active but how / where to mount ?

[Bruno Costacurta <pubmb.bco@pt.lu>]

Hello,
I have the following raid active partition:

sudo dmraid -s
*** Group superset isw_cfaabdceig
--> Active Subset
name   : isw_cfaabdceig_RAIDv0
size   : 308281344
stride : 256
type   : mirror
status : ok
subsets: 0
devs   : 2
spares : 0

sudo dmraid -r
/dev/sdb: isw, "isw_cfaabdceig", GROUP, ok, 320173054 sectors, data@ 0
/dev/sdc: isw, "isw_cfaabdceig", GROUP, ok, 312581806 sectors, data@ 0

cat /proc/mdstat
Personalities : [linear] [multipath] [raid0] [raid1] [raid6] [raid5] [raid4] 
[raid10]
unused devices: <none>

This RAID set was working until now, but /dev/sda (first disk on my system but 
not include in the RAID) was replaced.
So I suppose simply I have to (re)mount the RAID.
How to proceed ?

Thanks for any clue or help.
Bye,
Bruno