gvinum - problem on hard disk

[Felipe Neuwald]

Hi folks,

I have one gvinum raid on a FreeBSD 6.1-RELEASE machine. There are 4 
disks running, as you can see:

[root at fileserver ~]# gvinum list
4 drives:
D a                     State: up       /dev/ad4        A: 0/238474 MB (0%)
D b                     State: up       /dev/ad5        A: 0/238475 MB (0%)
D c                     State: up       /dev/ad6        A: 0/238475 MB (0%)
D d                     State: up       /dev/ad7        A: 0/238475 MB (0%)

1 volume:
V data                  State: down     Plexes:       1 Size:        931 GB

1 plex:
P data.p0             S State: down     Subdisks:     4 Size:        931 GB

4 subdisks:
S data.p0.s3            State: stale    D: d            Size:        232 GB
S data.p0.s2            State: up       D: c            Size:        232 GB
S data.p0.s1            State: up       D: b            Size:        232 GB
S data.p0.s0            State: up       D: a            Size:        232 GB


But, as you can see, the data.p0.s3 is "stale". What should I do to try 
recover this and get the raid up again (and recover information)

Thanks,

Felipe Neuwald.