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From Steve Robenalt <>
Subject Question about EC2 and SSDs
Date Fri, 05 Sep 2014 00:05:42 GMT
Hi all,

We are migrating a small cluster on AWS from instances based on spinning
disks (using instance store) to SSD-backed instances and we're trying to
pick the proper instance type. Some of the recommendations for spinning
disks say to use different drives for log vs data partitions to avoid
issues with seek delays and contention for the disk heads. Since SSDs don't
have the same seek delays, is it still recommended to use 2 SSD drives? Or
is one sufficient?


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