The Xenapi Admin Tools are starting to become so useful that I don't like having XCP hosts without them. Currently you can go to http://xenapi-admin-project.github.com/xenapi-admin-tools/ and download the archive onto your host, extract it and then copy the tools to your PATH. This however, is a lot of work since they get updated often. In the coming weeks (months?) I'll be finishing the Yum repo for Xenapi Admin Tools so the XCP package manager can keep them up to date. Until I get that accomplished however it may be easier to just install git and clone the github repository. Every time you want to get updates you'd just cd into the xenapi-admin-tools directory and run git pull.
With that in mind we have to add the EPEL repository where git is housed in order to use Yum to install it.
Install the EPEL repo
yum install git
Disable EPEL repo
The EPEL repository is enabled by default so we didn't have to do anything special to install git. However, you may not want it enabled all the time because packages that EPEL hosts may replace XCP specific packages and mess up your system
sed -i 's/enabled=1/enabled=0/g' /etc/yum.repos.d/epel.repo