HiIf my goal is to have multiple physical disks seem as one big disk with redundancy built in, why would I use a HDFS cluster among machines with one disk each, instead of using software RAID like md(adm) directly on top of the disks? I am looking for pros and cons on the two solutions.
http://en.wikipedia.org/wiki/RAID#Software-based_RAID http://en.wikipedia.org/wiki/Mdadm
Regards, Per Steffensen
