Dark Atheist

i have 4 discs i want to use as riad - i select fd in cfdisk and make the raid according to the raid howto and all seems ok - it doesnt seem to be building the arry though, if my memory serves me from last time as soon as i made and started the arry it said it was building the arry

steps i took

1. fdisked all drives to fd
2. mdadm --create --verbose /dev/md0 --level=0 --raid-devices=4 /dev/sda1 /dev/sdb1 /dev/sdac1 /dev/sdd1
3. added ARRAY /dev/md0 level=raid0 num-devices=4 UUID=1a082597:b93e0ebd:c8a5f07f:699e61c4 - to /etc/mdadm.conf
4. formated the arry and rebooted.

it starts when the pc starts (i can see that from looking when it boots and from logs)

out put of mdadm -D /dev/md0 - shows

/dev/md0:
Version : 00.90.03
Creation Time : Thu Nov 1 18:03:39 2007
Raid Level : raid0
Array Size : 712385920 (679.38 GiB 729.48 GB)
Raid Devices : 4
Total Devices : 4
Preferred Minor : 0
Persistence : Superblock is persistent

Update Time : Thu Nov 1 19:48:24 2007
State : clean
Active Devices : 4
Working Devices : 4
Failed Devices : 0
Spare Devices : 0

Chunk Size : 64K

UUID : 1a082597:b93e0ebd:c8a5f07f:699e61c4
Events : 0.17

Number Major Minor RaidDevice State
0 8 1 0 active sync /dev/sda1
1 8 17 1 active sync /dev/sdb1
2 8 33 2 active sync /dev/sdc1
3 8 49 3 active sync /dev/sdd1

i notice it shows clean so is it a case that its built it transparently ? and i have nothing to worry about