i came back to give you some info :

- my SATA RAID10 volume is defective. It's always go "offline", i had to remove "2 disks" to finally get back data. I came back to RAID1 volume, we'll see.
- my SATA Disk are Western Digital Caviar Black, looks like ARECA doesn't like them.
- my USB DOM "DSS Offcial" was dead too, i had to reinstall on a SAS Disk.

I just had a last one problem, when initializing the RAID1 Volume it's slowing very much the replication...

I think ARECA is just unable to mix hard drive (SATA / SAS), i will use juste one volume for my next SAN...