What would be a reasonable configuration of disk drives in a Hadoop datanode?
A.
Four 1TB disk drives in a RAID configuration
B.
One 1TB disk drive
C.
Four 1TB disk drives in a JBOD configuration
D.
48 1.5TB disk drives in a JBOD configuration
E.
48 1.5 TB disk drives in a RAID configuration
Explanation:
http://www.cloudera.com/blog/2010/03/clouderas-support-team-shares-some-basichardware-recommendations/ (How to pick hardware for your hadoop cluster, see first bulleted point)
I choose C
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It guess it should only be C as we already have replicating factor in hadoop so dont require RAID disk and one 4 1TB will be better to fast read and write.
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