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From Edward Capriolo <edlinuxg...@gmail.com>
Subject Re: Node setup - recommended hardware
Date Wed, 04 May 2011 16:38:46 GMT
On Wed, May 4, 2011 at 12:25 PM, Anthony Ikeda
<anthony.ikeda.dev@gmail.com> wrote:
> I just want to ask, when setting up nodes in a Node ring is it worthwhile
> using a 2 partition setup? i.e. Cassandra on the Primary, data directories
> etc on the second partition or does it really not make a difference?
> Anthony
>

Putting software and data in different partitions is generally a good
idea (This is not Cassandra specific). It reduces the number of writes
to the software partition (commonly /) and if the system crashes you
have a better chance of being able to boot up and disk check the data
partition (commonly /var). However you get no performance benefit from
doing this. Although it does allow you to apply different file systems
and options like ext4 with noatime, async, etc per partition.

You do get a performance benefit from storing the Cassandra commit_log
directory on a separate disk from the cassandra data directory.

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