Hi. AWS EBS its a really painful story.... How was created volumes for RAID? From snapshots? If you want to get the best performance from EBS it needs to pre-warmed.
Here is the tutorial how to achieve that: http://docs.aws.amazon.com/AWSEC2/latest/UserGuide/ebs-initialize.html Also you should read this one if you want to get really great for performance: http://hatim.eu/2014/05/24/leveraging-ssd-ephemeral-disks-in-ec2-part-1/ Good luck! 2016-05-26 1:34 GMT+03:00 Tory M Blue <tmb...@gmail.com>: > We are starting some testing in AWS, with EC2, EBS backed setups. > > What I found interesting today, was a single EBS 1TB volume, gave me > something like 108MB/s throughput, however a RAID10 (4 250GB EBS > volumes), gave me something like 31MB/s (test after test after test). > > I'm wondering what you folks are using inside of Amazon (not > interested in RDS at the moment). > > Thanks > Tory > > > -- > Sent via pgsql-performance mailing list (pgsql-performance@postgresql.org) > To make changes to your subscription: > http://www.postgresql.org/mailpref/pgsql-performance >
