Sub-capacity Licensing

Sub-capacity licensing allows you to license a subset of the CPUs available on a physical machine using the SySAM sub-capacity license functionality.

Platform support

SySAM Virtualization Sub-Capacity Compatibility
Vendor Product Platform Support Virtualization Type



HP IA 11.31

Physical partition




Virtual partition


Integrity Virtual Machines with Resource Manager


Virtual machine


Secure Resource Partitions


OS containers



AIX 6.1, AIX 7

Virtual partition




Virtual partition


Dynamic System Domains

Solaris 10

Physical partition


Solaris Containers/Zones with Solaris Resource Manager


Virtual partition

  Sun Logical Domain (LDOM)  

Virtual partition

Intel, AMD

VMWare ESX Server Guest O/S: Windows

Note: VMWare ESX Server excludes VMWare Workstation, and VMWare Server.

VMWare ESX 3.5, ESX 4.0 and ESX 4.1, ESXi4.1, ESXi 5.0, Guest OS: Windows 2008 R2, Windows 7

Virtual machine


VMWare ESX Server Guest OS: Linux, Sun Solaris x64

VMWare ESX 3.5, ESX 4.0 and ESX 4.1, ESXi4.1, ESXi 5.0, Guest OS: RH 5.5, SuSE 11, Sun Solaris x64

Virtual machine


Xen, KVM, DomainU: Windows

Note: Xen excludes Sun Solaris x64.

Windows 2008 R2, Windows 7

Virtual machine


Xen, KVM, DomainU: Linux

RH 5.5, SuSe 11

Virtual machine

  Hyper-V Windows 2008 R2

Virtual machine

Enabling Sybase Sub-Capacity Licensing

If you purchased your product from Sybase or an authorized reseller, you must have a sub-capacity licensing agreement with SAP or Sybase before you can enable sub-capacity licensing.

Note: Keep your license server up-to-date.

Although the installation media includes a copy of the most recent SySAM license server, we recommend that you periodically check for updates at

When using SySAM sub-capacity licensing, set the SYBASE_SAM_CAPACITY environment variable before installing, or copy in the license key after installation.