Boot, ephemeral & EBS storage performance on amazon cc1.4xlarge instance types
Backstory For background and summary writeups of all the various blog posts we have dealing with the new Amazon EC2 “compute cluster” cc1.4xlarge instance types please refer to this summary page: This post In this post I’ve finally collected enough data to cover repeated bonnie++ benchmark tests against all the main types of block storage […]
How to resize an Amazon EC2 AMI when boot disk is on EBS
Note Screwing around with the boot volume is part of our regular “explore around the edges” work before we get serious with how we are going to configure and orchestrate the new systems. The boot volume in this scenario does not have PV driver support and thus will perform slower than the actual ephemeral storage. […]
PGP Universal Server 3 and XenServer 5.5
Background BioTeam is a Massachusetts-based “virtual” company in that all of our employees work from home when not traveling on business. Being from Massachusetts is actually important because as of March 31st, 2010 the state has passed a fairly strict set of laws concerning how companies handle digital data. Without going into the details of […]
Grid Engine 6.2 on Mac OS X
Installing Grid Engine 6.x on modern versions of Mac OS X (client and server) As of early 2010, Grid Engine is effectively not installable out of the box on modern version of Mac OS X. We have seen this recently with server and client versions of OS X 10.5.* as well as the new Snow […]
Harvard FAS talk on high speed interconnects for commodity HPC systems
Grid Engine Administration – Training Slides
After much thought we’ve decided to release PDF versions of some Grid Engine Administration training slides that BioTeam has used in the past. We hope the community will find them useful; internally we are working on new materials that will incorporate screen sharing technologies, videos, screencasts and better online learning environments (including training systems with […]
Nagios plugin sample for Xen Enterprise
Sample Nagios plugin script for counting the number of running VMs on a Xen Enterprise 4 Hypervisor.
