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)?
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