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

Architecturally it is 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 OnApp VMWare
Tolerate failure of servers Yes No Yes Yes
Tolerate failure of data server Yes No No Yes
Automatic scaling Yes No Yes Yes
User-accessible restore points Yes No No No
Java, Ruby, Python supported Yes Yes Yes Yes
Shared-nothing replicated storage Yes No No No
High density of cust. per server Yes No No Yes
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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 hard to integrate and manage a DR site if one is used.
  • No tools to allow instant rollback – if a customer or sysadmin makes a mistake then typically it’s a restore from an hourly or daily backup with significant operational costs.
  • No automatic data replication between machines – typically a shared NAS is used which, if it fails, can be catastrophic.
Virtualised solutions

Virtualised solutions such as OnApp and VMware:

  • Reliant on physically shared storage, typically a SAN, which is extremely expensive compared to HybridCluster and requires specialist operations to manage and maintain.
  • Hypervisor based Virtualisation 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. This uses far less RAM – with HybridCluster density can increase by 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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