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From "Natarajan, Prabakaran 1. (NSN - IN/Bangalore)" <prabakaran.1.natara...@nsn.com>
Subject RE: Hadoop SAN Storage reuse
Date Fri, 13 Jun 2014 04:01:01 GMT
Great, Thanks.

Thanks and Regards
Prabakaran.N  aka NP
nsn, Bangalore
When "I" is replaced by "We" - even Illness becomes "Wellness"

From: ext John Lilley [mailto:john.lilley@redpoint.net]
Sent: Friday, June 13, 2014 3:34 AM
To: user@hadoop.apache.org
Subject: RE: Hadoop SAN Storage reuse

Hadoop performs best when each node has exclusive use of its disk.  Therefore, if you have
a choice, try to provision exclusive use of individual spindles on your SAN and map each one
to a separate mount on your Hadoop nodes.  Anything other than that will tend to produce poor
performance due to disk contention.


From: Natarajan, Prabakaran 1. (NSN - IN/Bangalore) [mailto:prabakaran.1.natarajan@nsn.com]
Sent: Thursday, June 12, 2014 12:00 AM
To: user@hadoop.apache.org<mailto:user@hadoop.apache.org>
Subject: Hadoop SAN Storage reuse


I know SAN storage is not recommended for Hadoop.    But we don't want waste - already existing
SAN Storage.

How can we make use of SAN Storage for Hadoop - what are the best methods, can a Ethernet
upgrade helps,...?


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