[Lustre-discuss] Redundance with Lustre

["José M. Martín"]

Hi,

I'm consideranding to install Lustre in my job's cluster.
Scenario is: 19 dedicated nodes, with 250 GB SATA disk (OST) and a 
server node (MDS) with RAID 1. My objetive is to create a fs with Lustre 
using free space in each node. I have readed the manual, but I have 
doubts about redundance. What happens if a disk fail (hardware failure)? 
Will the data in that disk be lost? Is there any kind of RAID5 o 6 
between the disk mounted in the nodes (distribuited RAID to prevent 
hardware failures)?

Thanks in avant.