I asked back in September about getting the Centos6-HVM AMI updated to support the C4-8XL instance type. Karanbir responded https://lists.centos.org/pipermail/centos-virt/2016-September/005222.html but I still see no evidence this has happened. This is a major thorn in our side and has prevented us from going completely to the C4 instance type ?, which we need for performance? (both CPU and network). Thanks in advance John -- JOHN PEACOCK senior software build and release engineer tel 877-887-3031 mobile 240-429-9334 email john.peacock at sparkpost.com -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.centos.org/pipermail/centos-virt/attachments/20161130/4b7b2274/attachment-0006.html>