There are many factors that determine how many virtual servers you can run. Below you can find specifications for a Medium Production Cloud as well the requirements for Integrated Storage.

An OnApp installation requires at least two physical machines – one for the Control Panel server, and the other for the compute resource server. You can have as many compute resource servers as you need. You will also need storage for your virtual servers (a data store), and we recommend that you set up a separate server for storing backups and templates. 

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With the full version of OnApp Cloud you get free support from our integrations team to spec the exact hardware you'll need for your cloud deployment.

Suggested Specifications

OnApp LicenseCloud
Number of Control
Panel (CP) Servers
Separate Database Server/ClusterNo
Dedicated Backup Servers1
Number of Compute Resources (XEN/KVM)8
Compute Resource Type (Static / Cloudboot)Cloudboot
CP Server
Processor2 x 8 Core CPUs
eg. Xeon e5-2640 v3
Memory32GB RAM
Disks4 x 100GB SSD
RAID ConfigurationRAID 10
Network AdaptersDual port 1Gps + Dual Port 10Gbps
eg. Intel I350 + X520

Backup Server

Processor2 x 8 Core CPUs
eg. Intel Xeon e5-2620 v3
Memory32GB RAM
Network InterfacesDual port 1Gbp Intel NIC +
Dual port 10Gbps Intel NIC
Compute Resource

Processor2 x 8 Core CPUs
eg. Xeon e5-2640 v3
HDDs8 x 400GB SSD
RAID ControllerPCIe gen3
eg. PERC H730, 1GB cache
RAID ConfigurationJBOD
Network Interfaces4 x 10Gbps
TypeOptional Dual-Controller
Hardware SAN
HDDs12+ x SSD
RAID ConfigurationRAID10
Network Hardware2 x High performance switch with: 48 x 10GbE ports, 4 x 40 GbE ports

Storage Hardware Requirements

If you are going to use OnApp Integrated Storage, make sure to meet the following requirements:

Integrated Storage PlatformLocal Storage OnlyEnterprise SAN
  • OnApp Integrated Storage can group together any number of drives across any compute resource. We strongly recommend a minimum of 2 drives per compute resource to enable redundant data store configurations.
  • At least 1 dedicated NIC assigned per compute resource for the storage network (SAN)
  • IGMP snooping must be disabled on storage switch for storage network
  • minimum 1 dedicated partition in each compute resource
  • separate disk from the primary OS drive recommended
  • centralised Block Storage SAN (iSCSI, ATA over Ethernet or Fibre Channel) accessible to every compute resource
  • at least 1 dedicated 1GBit/s NIC assigned per compute resource for the SAN
  • multiple NICs bonded or 10GBit/s ethernet recommended
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