I have created a pvfs2 situation on my cluster(4 nodes, 8 cpus, 1 sata disk each node, a separate partition acts as pvfs storage). Pvfs runs smoothly and everything is OK. But I want to know what will happen if any disk damaged, I mean, If one of these disks failed, all data will lose? How pvfs2 deals with this situation? I have read the "pvfs-ha.pdf" but this kind of solution based on my cluster nodes have redundance disks that I don't have. Does pvfs support redundance storage policy? Just like RAID 1, when data arrives, we write it to two nodes and at the same time, we write another copy of data to the other two nodes. Thanks, any suggestions will be appreciated.
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