Please note: if you are interested in a full-fledged, complete HA virtualization solution delivered as one fixed-bid service package, check out the product information for DRBD Virtualization Enterprise Cluster on our corporate web site.
For the German speakers among you, Hans-Joachim Baader has written an interesting howto on leveraging DRBD, Xen, and Heartbeat to make a full HA virtualization platform.
While this isn’t exactly quite a brand new approach (we at LINBIT have deployed this in projects), Hans-Joachim makes insightful observations when comparing Xen paravirtualization to the OpenVZ OS-level virtualization solution. Do take a look.
What I’m delighted to hear is that he has found DRBD/Heartbeat to be a painless and hassle-free add-on to both Xen and OpenVZ. My additions to his howto are:
- Use Heartbeat V2 in CRM configuration mode, and the OCF-compliant Xen Resource Agent. Saves you all the hassle of hacking your own Heartbeat V1-compatible resource script.
- Live Migration for Xen is doable with DRBD, but it’s a little tricky. Drop me an email if you are planning to deploy such a setup.
- The Debian
xen-toolspackage is great, but always requires a little tweaking. Especially the