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HybridCluster is a new approach: we have integrated technologies you can trust such as MySQL, Apache, Dovecot, Exim, FreeBSD and ZFS into a system that delivers unique characteristics.

Architecturally it is a fundamentally different approach to integrate OS level virtualisation, continuous ZFS data replication and low-cost local storage to create a complete cloud hosting platform – and that is what gives us our edge when compared to other approaches.

HybridCluster ticks all the boxes
Feature List Hybrid Cluster cPanel VMWare
Tolerate failure of servers
Tolerate failure of data server
Automatic scaling
User-accessible restore points
Java, Ruby, Python supported
Shared-nothing replicated storage
High density of cust. per server

Compare the characteristics

Classical shared hosting solutions

Classical shared hosting solutions using cPanel and Parallels Plesk:

  • Cannot tolerate the failure of a single server, unless used in conjunction with a shared storage and virtualisation solution, which then becomes expensive and hard to manage.
  • Cannot tolerate the failure of a region or datacenter and it is hard to integrate and manage a DR site if one is used.
  • Do not have tools to instantly rollback data. If a customer or sysadmin makes a mistake then typically restore are from an hourly or daily backup with significant operational costs.
  • Do not automatically replicate data between nodes.
Virtualised solutions

Virtualised solutions such as XenServer and VMware:

  • Are reliant on physically shared storage, typically a SAN, which is extremely expensive compared to HybridCluster and is a single point of failure.
  • Use hypervisor-based virtualisation, which burns memory on each machine because RAM is allocated to each kernel and OS instance running. HybridCluster uses OS virtualisation to virtualise the key user space processes, which uses far less RAM. With HybridCluster, density can increase by up to 400%. There is also less I/O overhead than booting many virtual machines, which is a critical resource for hosting systems.
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