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From Per Steffensen <st...@designware.dk>
Subject HDFS vs software RAID like md(adm)
Date Wed, 14 Sep 2011 18:02:14 GMT
Hi

If 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

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