It's official, we are the number one solution around the world when it comes to Citrix Xenserver and High Availability on two-node clusters using standard internal storage! It's easy to use, 100% reliable, and no strain on hardware resources. Best of all, it's free with no purchase requirements, no adware, and no hidden code.
HA-Lizard is a high-quality, open-source project that provides high availability software solutions for the Citrix XenServer™ virtualization management platform. HA-Lizard provides High Availability and Redundancy for two-node clusters utilizing internal storage and/or drives. This Hyperconvergence solution is not found in Citrix XenServer™ and the few solutions available are either complicated, feature challenged, or expensive.
The software is designed to be lightweight with no compromise of system stability. In addition, there are no dependencies to interfere with pool stability or add complex software packages. HA-Lizard is the software design and technical detail you expect from a leading high availability and redundancy solution.
HA-ISCSI - Support for XenServer HA with 2 hosts
With so many requests for support of the high availability of Xenserver and Xen Cloud Platform with 2 hosts, we designed new software to make HA-Lizard even better!
HA-ISCSI is an add-on module for two-node pools utilizing Xen Cloud Platform (XCP) or XenServer virtualization environments. It is intended to build highly available two-node clusters with local storage without limiting pool advanced functionality such as live migration.
HA-Lizard is the only reliable high availability solution for 2-node XenServer pools in the industry
In the United States of America
“noSAN” or a “noSAN Cluster” the term used to define an HA-Lizard 2-node pool that utilizes local storage. This special configuration combines two HA-Lizard software projects. HA-Lizard + iSCSI-HA = noSAN
Typically a 2-node virtualization cluster is not possible without a minimum of three hosts and an external Storage Area Network (SAN). HA-Lizard’s “noSAN” can accomplish this with just 2 hosts utilizing each of the host's local storage – hence no SAN is required.
The most common use of our software is in a 2-node XenServer environment with local storage. This setup specifically addresses two issues:
1- HA in a 2 node pool is not reliably supported by XenServer- HA-Lizard was designed to provide predictable failover in a 2-node pool
2- local storage is converted to a form of internal SAN such that VMs can be moved live and restarted without any of the limitations of using DAS. This is done with our iSCSI-HA package and allows users to build 2-node pools without any external SAN while realizing all the functionality (mainly VM agility) of a SAN environment.
Many users are implementing HA-Lizard+iSCSI-HA to realize the scenario described above. This design is well documented in a reference design and how-to that we publish on our site.
iSCSI-HA is an add-on software component that was developed to complement a 2-node HA-Lizard cluster. It allows users to create a 2-node high availability cluster while utilizing local storage (Hard Drives within the server).
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